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High School Cheerleading Injuries and the Functional Movement Screen as an Injury Predictor Capstone Project, Spring 2014 Mike Hopper, ATC, FMS Mentors Carlen Mulholland, PhD, ATC Adjunct Professor Southeast Missouri State University Ashley Rockey, MS, ATC Twin Cities Orthopedics Rebecca Lopez, PhD, ATC, CSCS Director of Graduate Athletic Training Program University of South Florida Peer Reviewer Sara Crawford, ATC

HighSchool%Cheerleading% InjuriesandtheFunctional Movement ... · Hopper,!Spring!2014! 1!! Introduction! Injurypreventionisamainstayintheathletictrainingprofessionandsomethingthatwe!

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Page 1: HighSchool%Cheerleading% InjuriesandtheFunctional Movement ... · Hopper,!Spring!2014! 1!! Introduction! Injurypreventionisamainstayintheathletictrainingprofessionandsomethingthatwe!

High  School  Cheerleading  Injuries  and  the  Functional  

Movement  Screen  as  an  Injury  Predictor  

 Capstone  Project,  Spring  2014  

 

Mike  Hopper,  ATC,  FMS  

 

Mentors  Carlen  Mulholland,  PhD,  ATC  

Adjunct  Professor  Southeast  Missouri  State  University  

 Ashley  Rockey,  MS,  ATC  Twin  Cities  Orthopedics  

 Rebecca  Lopez,  PhD,  ATC,  CSCS  

Director  of  Graduate  Athletic  Training  Program  University  of  South  Florida  

 Peer  Reviewer  

Sara  Crawford,  ATC    

 

 

   

 

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Introduction  Injury  prevention  is  a  mainstay  in  the  athletic  training  profession  and  something  that  we  

attempt  to  achieve  on  a  daily  basis.  Identifying  exactly  why  and  how  the  injury  rates  can  be  improved  

must  be  a  priority.  National  injury  surveillance  programs  have  been  developed  that  help  researchers  to  

track  these  injury  rates  if  that  sport  is  included  in  the  particular  interests  of  the  study.    

Cheerleading  has  long  fought  to  be  recognized  as  a  sport,  which  caused  it  to  be  excluded  from  

national  sports  injury  surveillance  programs  for  many  years.  Additionally,  rules  and  regulations  have  

long  lagged  behind  the  sport  itself  in  terms  of  safety.  There  are  national  associations  such  as  the  

National  Cheer  Safety  Foundation  and  the  National  Cheer  Association  who  have  attempted  to  improve  

the  safety  of  the  sport,  but  much  work  remains.  Cheerleading  is  no  longer  the  cheerleading  mothers  and  

grandmothers  grew  up  with  girls  on  the  sideline  leading  the  cheers  of  victory.  Instead,  the  sport  has  

become  a  competitive  activity  with  similarities  to  gymnastics  combined  with  team  spirit1.  Many  

cheerleaders  were  at  one  time  gymnasts  and  these  girls  have  brought  those  skills  and  experiences  to  the  

cheerleading  competition  mat.  Competitive  cheer  and  gymnastics  share  many  risks  and  rewards.  One  of  

these  risks  is  the  increased  opportunity  for  serious  injury.  Absent  serious  injury,  cheerleading  also  

causes  numerous  less  severe  injuries  such  as  sprains  and  strains  on  a  regular  basis.  It  has  been  noted  

that  while  cheerleaders  do  not  suffer  injuries  at  the  same  rate  as  other  athletes,  the  percentage  of  

catastrophic  injury  is  much  higher  than  other  female  sports  at  the  high  school  level1,2.    

Sports  medicine  providers  should  attempt  to  identify  potential  injury  risks  and  alleviate  those  

through  training  and  conditioning.  However  simply  training  the  body  is  of  little  use  if  one  does  not  first  

identify  weaknesses  and  strengths  for  which  to  further  develop.  Data  that  can  be  re-­‐tested  and  repeated  

is  necessary  for  both  improving  function  and  for  personal  gratification.  There  are  various  tests  and  

screenings  that  can  be  done  which  may  shed  light  onto  particular  issues  to  be  investigated.  Some  tests  

done  in  the  past  have  included  the  Cooper  Test  for  aerobic  capacity,  the  YMCA  bench  press  test,  or  1-­‐

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rep  maximums  testing  with  various  strength  movements.  The  Functional  Movement  Screen  is  one  such  

screen  that  has  been  hypothesized  as  a  potential  injury  prevention  tool.  

The  Functional  Movement  Screen  (FMS)  was  developed  by  Gray  Cook  and  Lee  Burton  in  1997  as  

a  mechanism  theorized  to  predict  injury  and  help  clinicians  communicate  regarding  deficiencies  in  

movement  that  may  be  detrimental  to  the  individual3.  The  FMS  has  been  used  by  athletes  and  clinicians  

around  the  world  and  is  a  popular  tool  in  professional  sports.  Adolescents  may  be  ideal  candidates  for  

this  testing,  but  that  data  is  currently  limited4.  The  FMS  emphasizes  the  correction  of  movement  

dysfunctions  that  are  said  to  be  detrimental  to  healthy  and  efficient  movement.  The  body  will  often  

move  in  whatever  way  is  necessary  to  complete  a  task,  but  that  may  not  be  the  most  ideal  way  for  the  

body  to  do  so.  If  the  body  is  moving  incorrectly,  then  it  may  predispose  that  individual  to  injury  

eventually.  This  is  why  identification  of  incorrect  movement  patterns  at  an  earlier  age  is  so  important  

not  only  for  athletics,  but  for  later  life  as  well.  Additionally,  much  of  the  research  of  the  FMS  has  been  

conducted  on  male  athletes.  Paszkewicz  et  al  and  Schneiders  et  al  both  found  that  there  were  statistical  

differences  in  composite  scores  between  genders4,  5.  However  it  was  noted  by  Schneiders  et  al  that  

females  scored  higher  on  the  active  straight  leg  raise  and  on  the  shoulder  mobility5.  This  is  associated  

with  greater  flexibility.  Additionally,  concerns  about  applying  studies  conducted  on  professional  athletes  

are  important  to  consider  as  their  movement  patterns  are  more  defined  than  that  of  an  adolescent  

athlete.  This  data  can  be  useful,  but  must  be  considered  carefully.  Ideally,  new  research  will  continue  to  

focus  on  the  adolescent  individual.  

The  purpose  of  this  project  is  two-­‐fold.  First,  I  wanted  to  investigate  the  incidence  and  severity  

of  cheerleading  injuries  at  the  high  school  level.  Secondly,  I  wanted  to  use  the  Functional  Movement  

Screen  to  evaluate  its  usefulness  as  an  injury  predictor  in  high  school  cheerleading.  There  is  research  

already  available  on  the  FMS  with  regards  to  professional  athletes,  but  its  usefulness  with  adolescents  

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remains  largely  unknown.  It  is  my  hope  that,  by  combining  these  two  subjects,  we  can  work  to  prevent  

more  injuries  in  high  school  cheerleading.  

Methods  20  cheerleaders  from  Waterloo  High  School  participated  in  the  Capstone  Project.  They  were  all  

female  ranging  in  age  from  14-­‐18  years  of  age.  This  comprised  the  entirety  of  the  cheerleading  squad  

during  the  2013-­‐2014  basketball/competition  season.  No  cheerleader  was  excluded  due  to  previous  

injury.  This  group  was  selected  as  a  sampling  of  convenience  in  order  to  test  the  idea  of  the  Functional  

Movement  Screen  as  an  injury  predictor  in  high  school  cheerleading  injuries.  Testing  was  completed  in  

the  high  school  Athletic  Training  Room  or  at  cheerleading  practice.    

The  Capstone  Project  initially  entailed  screening  high  school  female  cheerleaders  using  the  

Functional  Movement  Screen.  This  required  the  use  of  the  Functional  Movement  Screen  Test  Kit  (Figure  

1).  This  kit  was  purchased  from  Perform  Better  and  consisted  of  a  dowel  rod,  a  2x6  plastic  piece  with  

measurements  marked,  two  upright  pieces  with  measurements,  and  a  piece  of  rubber  tubing.  This  was  

recorded  on  an  individual  scoring  sheet  with  the  cheerleader’s  name  for  identification  and  then  a  

participant  number  was  assigned  for  further  record.  This  data  was  then  transferred  into  a  Microsoft  

Excel  spreadsheet  using  the  participant  number  to  identify  the  cheerleader.  Injuries  were  recorded  using  

the  Injury  Consultation  form  used  by  the  company  (Figure  2)  and  that  data  was  also  input  into  the  

spreadsheet.  

The  Functional  Movement  Screen  consisted  of  seven  tests:  the  overhead  squat,  inline  lunge,  

rotary  stability,  shoulder  mobility,  active  straight  leg  raise,  hurdle  step,  and  trunk  stability  push-­‐up6,  7.  

These  tests  were  scored,  on  a  scale  from  zero  to  three,  in  order  to  determine  raw  scores  of  each  test  as  

well  as  a  composite  score.  The  instructions  for  each  test  were  verbally  given  to  each  cheerleader  prior  to  

performing  the  test.  Based  on  the  findings  of  Frost  et  al,  the  criteria  for  scoring  were  not  provided  to  the  

cheerleaders8.  This  study  found  that  subjects  performed  better  on  the  screening  tests  if  they  knew  what  

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criteria  they  were  being  tested.  Visual  demonstrations  were  provided  as  needed.  The  cheerleader  was  

asked  if  she  experienced  pain  with  each  movement  and  with  each  clearing  test.  Pain  with  a  specific  

movement  resulted  in  a  score  of  zero  being  assigned  for  that  test.    

The  first  movement  was  the  overhead  squat  (Figure  3)6.  In  the  overhead  squat,  the  individual  

held  the  dowel  over  the  head  and  attempted  to  squat  with  the  knees  and  toes  aligned  with  the  femurs  

getting  below  parallel  in  the  down  position.  The  dowel  should  remain  overhead  or  slightly  behind  the  

head.  If  she  completed  the  movement  as  described  above,  a  score  of  3  was  recorded.  She  scored  a  2  if  

she  was  unable  to  complete  this  movement  standing  flat-­‐footed,  but  was  able  to  do  so  with  her  heels  

elevated  by  the  2-­‐inch  test  kit.  She  scored  a  1  if  she  was  unable  to  complete  the  movement  even  with  

modification.  Pain  overruled  all  scoring  if  it  was  present.    

The  second  movement  was  the  hurdle  step  (Figure  4)6.  The  individual  held  the  dowel  across  her  

shoulders  with  her  toes  touching  the  back  of  the  test  kit.  The  elastic  band  created  a  hurdle  located  at  

the  tibial  tuberosities.  One  at  a  time,  the  individual  stepped  over  the  hurdle,  tapped  her  heel  on  the  

front  of  the  board,  and  returned  to  the  starting  position.  The  goal  is  to  complete  the  movement  while  

keeping  the  hip,  knee,  and  toes  in  a  line  without  losing  balance.  This  is  completed  bilaterally.  If  she  

completed  the  movement  perfectly,  then  a  score  of  3  was  assigned.  If  she  was  unable  to  maintain  this  

alignment,  had  lumbar  flexion,  or  was  unable  to  maintain  the  dowel  parallel  to  the  string,  then  a  score  

of  2  was  assigned.  A  score  of  1  was  assigned  if  contact  between  the  foot  and  the  string  occurred  or  if  she  

lost  her  balance.  Pain  negated  all  movement  testing  and  a  score  of  0  was  assigned.  This  test  was  scored  

both  with  a  raw  score  for  each  individual  side,  but  also  a  final  score  was  recorded  which  was  the  lower  

of  the  two  sides.    

The  third  test  in  the  series  was  the  Inline  Lunge  (Figure  5)6.  The  cheerleader  stood  on  the  test  kit  

with  the  dowel  vertical  along  the  spine.  The  feet  were  spread  approximately  the  same  distance  as  the  

height  of  the  hurdle  step  which  was  measured  at  the  height  of  her  tibial  tuberosities.  She  then  knelt  

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down  taking  the  back  knee  to  the  back  heel  of  the  front  foot  while  keeping  her  torso  upright.  This  test  

was  also  completed  bilaterally.  If  she  was  able  to  maintain  alignment  of  knee  and  foot  as  well  as  

maintaining  an  upright  torso,  she  was  awarded  a  score  of  3.  If  there  was  torso  movement,  malalignment  

of  knees  and  toes,  or  her  knee  did  not  touch  behind  the  heel  of  her  front  foot,  then  she  was  awarded  a  

score  of  2.  She  was  awarded  a  score  of  1  if  she  lost  her  balance.  Reported  pain  resulted  in  a  score  of  0  

for  that  movement.  The  raw  score  was  recorded  for  each  side  as  well  as  the  final  score.    

The  Shoulder  Mobility  test  (Figure  6)  was  the  next  test7.  The  cheerleader  reached  overhead  in  

external  rotation,  flexion,  and  horizontal  adduction  with  one  hand  while  the  other  hand  was  in  internal  

rotation  and  extension  with  the  goal  of  the  two  hands  interlocking  behind  the  back.  Then  she  reversed  

her  hand  placement  to  record  the  other  side.  A  score  of  3  was  recorded  when  her  hands  met  behind  her  

back.  She  was  given  a  score  of  2  if  her  hands  were  within  one  and  a  half  hand’s  length  and  she  scored  a  

1  if  her  hands  were  outside  that  distance.  The  Shoulder  Mobility  test  also  has  a  clearing  test  called  the  

Impingement  Clearing  Test7.  This  clearance  test  was  unscored  but  instead  was  pain-­‐free  or  not.  The  girl  

placed  her  hand  on  her  opposite  shoulder  and  lifted  her  elbow  as  high  as  she  could.  Pain  with  this  test  

negated  whatever  score  she  attained  on  the  Shoulder  Mobility  and  resulted  in  a  zero.  Scores  were  

recorded  for  each  side  as  well  as  a  final  score.  

 The  Active  Straight  Leg  Raise  was  tested  next  (Figure  7)7.    The  cheerleader  laid  supine  with  her  

legs  perpendicular  to  the  test  kit  board  which  rested  below  her  knees.  The  midpoint  between  her  ASIS  

and  her  midpoint  of  her  patella  was  identified  and  the  dowel  was  placed  perpendicular  to  the  floor  at  

this  point.  Next,  she  flexed  her  hip  with  an  extended  knee  and  dorsiflexed  foot  as  far  as  possible  while  

she  maintained  the  other  leg  in  hip  extension  against  the  board.  She  scored  a  3  if  her  foot  went  past  the  

dowel.  If  the  foot  was  between  the  dowel  and  her  midpoint  of  the  patella,  she  was  awarded  a  2.  If  her  

foot  was  below  the  patellar  midpoint,  she  scored  a  1.  Pain  negated  any  movement  score  and  resulted  in  

a  0.  This  was  scored  as  a  raw  score  on  each  side  as  well  as  a  final  score.  

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The  Trunk  Stability  Pushup  Test  was  the  sixth  test  (Figure  8)7.  For  this  test,  she  began  in  a  push  

up  position  with  her  thumbs  even  with  her  chin.  Completion  of  a  push  up  in  this  position  resulted  in  a  

score  of  3  being  assigned.  A  score  of  2  was  recorded  if  she  completed  the  push  up  with  her  thumbs  

aligned  with  her  clavicles  and  a  score  of  1  was  recorded  if  she  was  unable  to  complete  a  push  up.  Pain  

negated  movement  scores  and  resulted  in  a  zero.  Additionally,  she  performed  the  Spinal  Extension  

Clearing  Test  which  was  scored  as  pain-­‐free  or  painful.  Pain  with  this  clearance  test  negated  movement  

scores  and  resulted  in  a  0  recorded7.    

Lastly,  the  Rotary  Stability  test  was  another  bilateral  test  (Figure  9)7.  She  began  in  a  quadruped  

position  straddling  the  test  kit.  A  score  of  3  was  recorded  if  she  completed  a  unilateral  repetition  

keeping  the  spine  parallel  to  the  floor  and  the  knee  and  elbow  touched.  She  received  a  score  of  2  if  she  

completed  a  diagonal  repetition  where  the  knee  and  elbow  touched  underneath  the  body  and  she  

scored  a  1  if  she  was  unable  to  complete  the  diagonal  movement.  This  test  also  has  a  clearing  test  

known  as  the  Posterior  Rocking  Clearing  Test7.  Again  in  the  prone  position,  she  will  rock  back  taking  her  

buttocks  to  her  feet.  Pain  here  results  in  the  Rotary  Stability  Test  becoming  a  zero.  

Upon  completion  of  the  Functional  Movement  Screen,  the  next  step  in  the  study  was  to  simply  

observe  for  injuries  throughout  the  course  of  the  season.  I  did  not  make  any  significant  changes  to  the  

injury  recording  process,  but  instead  evaluated  injuries  as  they  occurred  and  in  the  same  manner  I  

would  evaluate  any  injury  that  occurred  at  Waterloo  High  School  during  this  time.  

Results     Test  scores  were  recorded  in  both  raw  data  and  as  composite  scores.  It  is  important  that  both  

be  considered  when  analyzing  the  data.  The  following  tables  will  show  scores  in  many  different  forms.    

  First  the  Deep  Squat  was  evaluated.  Many  of  the  cheerleaders  scored  2s,  one  cheerleader  

scored  a  1  and  six  cheerleaders  scored  perfect  3s.  No  pain  was  reported  during  this  test  so  no  0s  were  

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recorded.  The  average  score  for  this  test  was  2.25  which  shows  that  the  majority  of  the  cheerleaders  

were  able  to  complete  this  test  with  little  to  no  difficulty.    

The  second  test  to  be  evaluated  was  the  Hurdle  Step.  This  test  will  be  shown  in  Table  2  with  raw  

scores  and  then  also  in  Table  3  with  the  final  score.  The  final  score  is  determined  by  taking  the  lowest  of  

the  two  raw  scores.  The  average  score,  as  noted  both  in  Table  2  and  Table  3,  are  much  lower.  The  final  

score  for  the  Hurdle  Step  has  an  average  of  1.5  which  means  that  there  were  several  of  the  cheerleaders  

unable  to  successfully  complete  this  test.  There  are  minor  asymmetries  present,  however  looking  side-­‐

by-­‐side,  the  only  big  gap  is  with  cheerleader  #15  who  experienced  pain  on  the  left  side.  This  resulted  in  

an  automatic  0.    

Next  the  Inline  Lunge  was  evaluated.  This  is  another  test  that  was  completed  on  each  side  so  

there  is  both  the  raw  score  and  the  final  score  to  be  determined.  Table  4  shows  the  raw  scores  on  each  

side  while  Table  5  shows  the  final  score.  Many  of  the  cheerleaders  were  able  to  complete  this  test  with  

minor  deviations  which  resulted  in  a  score  of  2.  Again,  there  were  no  reports  of  pain  with  this  test.  

Minor  asymmetries  noted,  but  the  scores  are  close.  Because  the  final  score  is  the  smaller  of  the  two  raw  

scores,  it  makes  sense  that  the  average  final  score  is  also  slightly  lower.    

  Shoulder  Mobility  was  next  examined.  This  test  is  also  scored  bilaterally.  Table  6  demonstrates  

the  raw  scores  while  Table  7  demonstrates  the  final  score.  With  the  exception  of  cheerleader  #10  and  

cheerleader  #14,  scores  were  very  high  on  this  test.  Cheerleader  #10  scored  a  1  while  cheerleader  #14  

experienced  pain  while  completing  the  movement  warranting  a  score  of  0.  There  was  also  very  little  in  

the  way  of  asymmetries  with  this  particular  test.  Again,  the  largest  difference  is  associated  with  pain  

rather  than  necessarily  with  the  movement  itself.    

The  Active  Straight  Leg  Raise  is  the  next  test  in  the  Screen.  Again,  tested  bilaterally  so  Table  8  

shows  the  raw  scores  on  each  side  while  Table  9  has  the  final  scores  for  this  test.  This  test  was  an  oddity  

in  that  every  single  cheerleader  scored  perfect  3s  on  it.  Most  would  not  find  that  odd  as  there  is  a  

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common  belief  that  cheerleaders  and  gymnastics  are  very  flexible.  With  that  in  mind,  it  makes  good  

sense  that  this  mobility  test  would  be  scored  so  highly.  

The  next  score  is  only  one  score  so  there  is  only  the  final  score.  The  Trunk  Stability  Push  Up  is  

where  most  of  the  pain  was  reported  and  that  was  still  only  two  individuals.  They  both  reported  pain  

with  the  clearing  test.  These  were  all  scored  2s  or  3s  with  the  exception  of  the  two  with  pain.  Nobody  

was  unable  to  complete  the  test  which  would  have  resulted  in  the  1.  These  scores  are  illustrated  in  

Table  10.  

Lastly,  the  Rotary  Stability  Test  is  illustrated  in  Table  11  with  raw  scores  and  Table  12  with  final  

scores.  No  pain  was  reported  during  this  test  so  there  were  no  0  scores.  There  were  some  asymmetries  

when  compared  side  by  side  which  demonstrates  weakness  of  the  core  stabilizers  with  asymmetric  

strengths.  The  average  scores  were  a  2  or  greater  for  both  sides  and  for  the  final  score.    

The  next  table  is  the  composite  scores.  This  score  includes  each  of  the  final  scores  illustrated  

above  in  Tables  1,  3,  5,  7,  9,  10,  and  12.  This  is  totaled  up  to  give  us  the  composite  score.  FMS  says  that  

this  composite  score  should  be  14  or  greater  in  order  to  prevent  injuries.    This  is  shown  in  Table  13.  

Injuries  were  documented  in  Table  14.  There  were  nine  injuries  recorded  during  this  

cheerleading  season.  These  consisted  of  one  head  injury,  one  back  injury,  one  foot  injury,  one  hand  

injury,  one  wrist  injury,  two  knee  injuries,  and  two  ankle  injuries.    

Discussion     Cheerleading  has  been  a  sport  largely  associated  with  school  spirit  and  less  to  do  with  

competition.  That  has  changed.  With  this  change,  injuries  have  increased  resulting  from  various  causes9.  

This  project  illustrated  that  as  well.  Of  these  nine  injuries  documented  during  this  study  period,  only  one  

of  them  would  be  considered  serious  in  nature.  That  was  a  concussion  suffered  as  the  result  of  a  fall  

from  a  stunt.  This  stunt,  by  admission  of  the  coach,  was  not  properly  supervised  and  therefore  should  

have  never  taken  place.  The  stunt  was  completed  on  a  hardwood  gym  floor  without  the  head  coach  

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present.  Because  of  this,  the  girls  were  instructed  to  not  attempt  said  stunt,  but  did  so  anyway.  This  

resulted  in  the  flyer  hitting  her  head  on  the  gym  floor.  This  illustrates  concern  that  has  been  expressed  

in  the  literature  of  improper  techniques  with  improper  supervision  leading  to  injuries1,  9-­‐12.  Shields  and  

Smith  associated  14%  of  injuries  in  their  study  to  falls10.  They  also  described  stunting  injuries  as  

accounting  for  60%  of  their  data10.  Stunting  injuries  during  the  2013-­‐2014  season  accounted  for  

approximately  44%  of  injuries  while  tumbling  accounted  for  11%.  The  other  four  injuries  were  not  

traumatic  in  nature  and  therefore  could  not  be  pinpointed  as  to  cause  of  injury.  No  injuries  this  year  

resulted  in  disqualification  for  greater  than  two  weeks.  Most  injuries  did  warrant  further  evaluation  by  

additional  medical  personnel.  Three  injuries  were  treated  by  a  chiropractor,  one  injury  was  seen  in  

physical  therapy,  and  two  other  injuries  were  cleared  by  physicians.  

  The  Functional  Movement  Screen  was  inconclusive  in  its  prediction  of  injury.  Two  individuals  

suffered  two  injuries  apiece  and  each  of  them  had  scored  less  than  a  14  on  the  FMS.  One  girl  who  had  

scored  a  12  also  suffered  one  injury.  The  other  four  injuries  occurred  on  girls  who  had  scored  14  or  

better.  Three  individuals  who  scored  less  than  a  14  suffered  injury  during  the  cheerleading  season.  The  

team  averaged  a  15.3  on  the  FMS  for  a  total  composite  score  with  one  score  as  high  as  20  and  one  score  

as  low  as  12.  The  team  average  of  15.3  compares  favorably  with  the  study  conducted  by  Paszkewicz  et  al  

who  had  an  average  score  of  15.16.  That  study  also  found  that  the  composite  scores  improved  from  

prepubescent  to  postpubescent  maturity4.  This  Capstone  Project  did  not  attempt  to  determine  the  

maturity  of  the  individuals  therefore  this  cannot  be  compared.  Based  on  the  average  composite  score,  

that  would  lead  us  to  believe  that  few  injuries  would  occur  over  the  course  of  the  season3.  I  would  

suspect  that  is  this  normal  in  studies  because  not  all  injuries  can  be  accurately  predicted  based  on  

simple  movements  such  as  conducted  in  the  FMS.  Movement  deficiencies  cannot  be  expected  to  be  the  

only  cause  for  injury  in  any  sport.  Cheerleading,  like  so  many  others,  often  involves  contact  with  other  

individuals  as  well  as  with  the  floor.  With  this  in  mind,  contact  with  the  other  cheerleaders  is  often  one  

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reason  for  an  injury.  This  season  three  of  the  injuries  were  the  result  of  collision  with  another  

cheerleader.  Another  three  injuries  were  the  result  of  overuse  that  could  be  potentially  corrected  by  the  

use  of  movement  corrections.  The  final  three  injuries  documented  had  unknown  origins.  

  Looking  back  at  raw  scores  and  composite  scores,  several  injuries  and  scores  correlated.  

Cheerleader  #5  scored  a  0  on  the  Trunk  Stability  Push  Up  because  she  reported  pain  with  the  clearing  

test.  This  makes  sense  because  the  testing  was  done  after  she  had  suffered  a  back  injury.  Back  extension  

as  a  part  of  the  clearing  test  elicited  pain.  Cheerleader  #15  has  battled  plantar  fasciitis  and  a  flattening  

of  her  arch  for  most  of  the  season.  She  occasionally  had  pain  with  bearing  weight  on  that  foot  so  it  made  

sense  that  she  reported  pain  in  a  single  leg  stance  during  the  Hurdle  Step.  Cheerleader  #14  reported  

pain  with  Shoulder  Mobility.  She  had  suffered  a  previous  AC  sprain  about  seven  months  ago,  so  it  

seemed  normal  that  she  had  pain  with  the  clearing  test.  Another  consideration,  as  illustrated  in  this  

paragraph,  is  that  previous  injury  does  affect  the  Functional  Movement  Screening  scoring  as  well  as  the  

risk  of  future  injury.  With  the  exception  of  one  0  score,  I  was  able  to  look  back  and  identify  why  that  

individual  had  pain.  Gray  Cook  has  said  before  that  whether  we  in  the  rehabilitation  world  like  it  or  not,  

previous  injury  is  a  predictor  for  future  injury13.    

  The  idea  was  to  test  each  cheerleader  to  obtain  the  FMS  score  for  each  of  them.  This  is  said  to  

determine  whether  that  individual  cheerleader  is  at  increased  risk  for  injury  or  not.  The  next  component  

was  to  observe  injuries  as  they  took  place  and  then  compare  that  information  with  the  FMS  scores.  Nine  

injuries  were  recorded  over  the  2013-­‐2014  cheerleading  season.  Cheerleader  #3  and  Cheerleader  #5  

both  reported  two  injuries  apiece.  Cheerleader  #3  suffered  a  knee  injury  in  their  final  competition  of  the  

season  and  also  suffered  an  ankle  injury  during  tumbling  practice  near  the  end  of  the  season.  She  had  

scored  a  13  for  a  composite  score  which  meant  she  was  at  increased  risk  of  injury  and  it  finally  caught  up  

with  her  nearing  the  conclusion  of  the  season.  Neither  injury  was  significant.  Her  knee  injury  required  no  

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missed  activities  while  the  ankle  injury  sidelined  her  for  8  days.  Cheerleader  #5  suffered  a  back  injury  

early  in  the  season  causing  her  to  miss  a  competition,  which  ended  up  meaning  the  team  had  to  also  

miss  that  competition.  She  sat  out  of  cheerleading  for  a  few  days  before  working  back  into  it  and  

completing  a  stint  of  physical  therapy.  This  girl  also  missed  9  days  after  suffering  a  concussion  during  a  

basketball  game.  She  had  scored  a  12  on  the  FMS  which  meant  she  was  also  at  risk  for  injury.    

Cheerleader  #14  was  the  last  girl  to  have  scored  below  the  14  threshold.  She  suffered  a  minor  ankle  

injury  in  the  middle  of  the  season,  but  missed  no  time  due  to  injury.  There  were  4  other  injuries  

reported  during  the  course  of  the  season  but  none  of  these  resulted  in  time  lost.  

  As  a  group,  the  cheerleaders  scored  lowest  on  the  Hurdle  Step  (1.5)  and  the  Inline  Lunge  (1.85).  

The  Active  Straight  Leg  Raise  resulted  in  perfect  scores  (3)  for  every  individual  while  the  Shoulder  

Mobility  (2.45)  also  resulted  in  a  high  score.  Schneiders  found  that  46.3%  of  their  female  participants  

scored  a  3  on  the  ASLR  while  approximately  80%  of  their  female  participants  scored  3s  on  the  Shoulder  

Mobility5.  12  cheerleaders  scored  a  3  on  Shoulder  Mobility  which  is  60%.  The  Trunk  Stability  Push  Up  

also  scored  higher  (2.5)  than  in  Schneiders’  study.  58.3%  of  the  females  in  that  study  scored  a  1  while  all  

but  two  of  the  cheerleaders  scored  a  2  or  a  3.  Those  two  cheerleaders  scored  a  0  due  to  pain.  The  Deep  

Squat  (2.25)  and  the  Rotary  Stability  (2)  were  both  scores  that  FMS  says  are  adequate  for  training.  The  

Deep  Squat  compares  to  that  of  the  Schneiders  study  while  the  Rotary  Stability  was  much  higher  among  

these  cheerleaders.    

  Injuries  occurred  in  various  settings  within  the  sport.  Although  four  of  the  injuries  could  not  be  

determined  as  to  where  they  took  place,  the  other  five  can.  One  happened  in  a  competition,  one  

happened  during  a  game,  and  the  other  three  occurred  in  practice.  This  coincides  with  Shields  and  Smith  

who  found  that  most  injuries  occurred  in  practice2.  The  rate  of  injury  was  lower  in  practice  but  due  to  

the  overall  number  of  exposures  that  number  still  remains  higher.  Competitions  resulted  in  fewer  

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exposures,  but  injuries  do  still  occur  there.  This  project  did  not  calculate  exposure  rates  so  we  cannot  

directly  relate  that  information  to  the  Shields  study,  but  we  can  highlight  what  the  numbers  do  show  us.  

Conclusions     Research  has  shown  that  cheerleading  injuries  have  risen  significantly  in  the  last  30  years1,  12.  

Fortunately,  the  Waterloo  High  School  cheerleaders  did  not  experience  significant  or  severe  injuries  this  

year  over  the  course  of  the  season.  The  worst  injury  suffered  this  year  was  a  concussion.  Last  year,  three  

WHS  cheerleaders  underwent  surgeries  related  to  cheerleading  injuries.  Injuries  were  more  chronic  in  

nature  for  the  girls  this  year  and  some  of  that  is  due  to  previous  injury.  Improvements  in  the  recording  

of  cheerleading  injury  incidence  could  include  better  documentation  of  minor  injuries  as  well  as  

recording  athletic  exposures.  This  would  be  the  best  way  to  compare  to  the  studies  conducted  by  

Shields  and  Smith.    

  I  cannot  correlate  last  year’s  misfortunes  with  a  lack  of  FMS  scores,  but  I  can  look  at  the  scores  

from  this  year  as  a  potential  indicator  of  why  there  were  not  significant  injuries  this  year.  With  three  

individuals  scoring  below  the  threshold  and  each  of  them  suffering  at  least  one  injury  during  this  limited  

project,  I  am  confident  that  the  FMS  can  predict  many  injuries.  These  results  correlated  with  the  

prediction  made  by  Kiesel  et  al  in  that  scoring  under  14  on  the  FMS  predisposed  an  athlete  to  injury  

(Kiesel).  It  is  not  a  perfect  system  and  no  system  will  be  able  to  predict  all  injuries  with  complete  

certainty.    

The  Functional  Movement  Screen  has  a  place  in  predicting  injuries  in  high  school  athletics.  This  

project  was  conducted  solely  with  high  school  cheerleaders,  but  it  could  certainly  be  expanded  to  

include  other  sports  as  well.  For  schools  that  have  the  resources,  I  would  certainly  recommend  its  

inclusion  into  a  strength  and  conditioning  program  and  injury  prevention  programs.  One  of  the  benefits  

of  the  FMS  is  that  most  strength  and  conditioning  coaches  or  athletic  trainers  attain  the  skills  needed  to  

screen  the  athletes  without  too  much  difficulty.  

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Previously  mentioned  rehabilitation  and  treatments  were  for  specific  injuries  as  documented.  

No  corrective  actions  were  taken  based  solely  on  the  FMS  scores  recorded  as  a  part  of  this  project.  The  

original  idea  was  to  incorporate  some  corrective  exercises  after  testing,  however  time  constraints  and  

contract  constraints  related  to  Athletic  Training  Services  were  prohibitory.  There  is  an  ongoing  

discussion  between  myself  and  the  cheerleading  coach  on  preventative  measures  that  will  incorporate  

individual  and  group  FMS  scores  into  a  cheerleading  conditioning  program  in  the  near  future.  

There  were  multiple  limitations  in  this  project  that  could  have  resulted  in  unfavorable  or  lacking  

results.  Cheerleading  has  truly  become  a  year-­‐round  sport  so  it  would  have  been  beneficial  if  this  project  

timeline  could  have  spanned  a  full  calendar  year  instead  of  a  short  snippet  of  the  season.  Greater  

injuries  could  have  been  documented  and  more  corrective  actions  could  have  been  taken.  Another  

limitation  was  the  time  spent  by  the  Athletic  Trainer  in  the  school  setting  which  limited  the  amount  of  

time  that  could  be  spent  on  this  project.    

Other  Athletic  Trainers  could  take  this  project  and  incorporate  it  into  their  own  research  studies  

or  their  own  clinical  practice.  The  time  needed  to  test  each  athlete  was  approximately  5  minutes  so  

while  it  seems  daunting,  it  is  time  well  spent.  The  ideal  situation  would  probably  to  include  FMS  testing  

into  the  pre-­‐participation  examination  that  athletes  must  undergo  prior  to  athletic  participation.  

Continued  research  is  necessary  in  both  components  of  this  project.  Additional  study  is  

warranted  at  the  high  school  level  utilizing  the  FMS.  I  think  that  as  the  Functional  Movement  System  

continues  to  be  recognized  in  the  rehabilitation  and  fitness  industries,  more  and  more  clinical  research  

will  be  undertaken  by  those  clinicians  in  the  field.  Cheerleading  injuries  must  also  undergo  additional  

study.  Further  recognition  as  a  sport  by  athletic  associations  and  the  medical  community  should  also  

lead  to  further  development  and  improvement  of  rules,  competition  surfaces,  and  regulations.  This  is  

important  for  continued  improvement  of  the  sport  so  that  it  can  succeed  safely  in  the  future.  

Cheerleading  can  no  longer  be  neglected  and  regarded  as  an  afterthought.  Medical  professionals  and  

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athletic  administrators  must  include  cheerleading  in  conversations  about  sports  safety  just  like  any  

other  sport.  Cheerleaders  should  be  required  to  undergo  pre-­‐participation  exams,  be  involved  in  

strength  and  conditioning  programs,  and  have  access  to  qualified  medical  professionals  during  

competitions  and  practices.  The  safety  of  the  cheerleaders  and  the  liability  of  the  schools  depend  on  it.  

 

   

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References  1) Mueller  FO.  Cheerleading  injuries  and  safety.  Journal  of  Athletic  Training.  2009;44(6):565-­‐566.  2) Shields  BJ,  Smith  GA.  Cheerleading-­‐related  injuries  in  the  United  States:  A  prospective  

surveillance  study.  Journal  of  Athletic  Training.  2009;44(6):567-­‐577.  3) Kiesel  K,  Plisky  PJ,  Voigh  ML.  Can  serious  injury  in  professional  football  be  predicted  by  a  

preseason  functional  movement  screen?  North  American  Journal  of  Sports  Physical  Therapy.  2007;  2(3):147-­‐158.  

4) Paszkewicz  JR,  McCarty  CW,  Van  Lunen  BL.  Comparison  of  functional  and  static  evaluation  tools  among  adolescent  athletes.  Journal  of  Strength  and  Conditioning  Research.  2013;10:2842-­‐2850.  

5) Schneiders   AG,   Davidsson   A,   Horman   E,   Sullivan   SJ.   Functional   movement   screen   normative  values  in  a  young,  active  population.  The  International  Journal  of  Sports  Physical  Therapy.  2011;  6(2):75-­‐82.  

6) Cook  G,  Burton  L,  Hoogenboom  B.  Pre-­‐participation  screening:  The  use  of  fundamental  movements  as  an  assessment  of  function-­‐Part  1.  North  American  Journal  of  Sports  Physical  Therapy.  2006;  1(2):62-­‐72.  

7) Cook  G,  Burton  L,  Hoogenboom  B.  Pre-­‐participation  screening:  The  use  of  fundamental  movements  as  an  assessment  of  function-­‐Part  2.  North  American  Journal  of  Sports  Physical  Therapy.  2006;  1(3):132-­‐139.  

8) Frost  DM,  Beach  TAC,  Callaghan  JP,  McGill  SM.  FMS  scores  change  with  performers’  knowledge  of  the  grading  criteria-­‐Are  general  whole-­‐body  movement  screens  capturing  “dysfunction”?  Journal  of  Strength  and  Conditioning  Research.  Ahead  of  Publication  2013.  

9) Shields  BJ,  Smith  GA.  Cheerleading-­‐related  injuries  in  the  United  States:  A  prospective  surveillance  study.  Journal  of  Athletic  Training.  2009;44(6):567-­‐577.  

10) Shields  BJ,  Smith  GA.  Cheerleading-­‐related  injuries  to  children  5  to  18  years  of  age:  United  States,  1990-­‐2002.  Pediatrics.  2006;117(1):122-­‐129.  

11) Shields  BJ,  Smith  GA.  Epidemiology  of  cheerleading  stunt-­‐related  injuries  in  the  United  States.  Journal  of  Athletic  Training.  2009;44(6):586-­‐594.  

12) Shields  BJ,  Smith  GA.  Epidemiology  of  cheerleading  fall-­‐related  injuries  in  the  United  States.  Journal  of  Athletic  Training.  2009;44(6):578-­‐585.  

13) Cook  G,  Burton  L,  Kiesel  K,  Rose  G,  Bryant  MF.  Movement:  Functional  Movement  Systems:  Screening,  Assessment,  Corrective  Strategies.  1999.    

   

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Tables/Figures  Table  1.  Deep  Squat  Scores  

Table  1   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average   Standard  Deviation  

Deep  Squat   3   2   2   3   3   2   3   3   2   2   2   2   2   2   2   2   2   2   3   1   2.25   0.5501  

 

Table  2.  Hurdle  Step  Raw  Scores  

Table  2   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average   Standard  Deviation  

Right   2   2   1   2   2   1   3   2   1   2   1   2   2   2   2   1   2   3   1   2   1.8   0.6156  

Left   2   2   2   2   2   2   3   2   2   2   1   2   1   2   0   1   1   2   1   1   1.65   0.6708  

 

Table  3.  Hurdle  Step  Final  Score  

Table  3   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average   Standard  Deviation  

Hurdle  Step   2   2   1   2   2   1   3   2   1   2   1   2   1   2   0   1   1   2   1   1   1.5   0.6882  

 

Table  4.  Inline  Lunge  Raw  Scores  

Table  4   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average   Standard  Deviation  Right   2   2   2   2   2   3   3   3   2   2   2   2   3   2   1   1   2   2   2   2   2.1   0.5525  Left   2   1   2   3   2   3   3   2   2   2   2   2   2   1   1   1   1   2   3   2   1.95   0.6863  

 

Table  5.  Inline  Lunge  Final  Score  

Table  5   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average   Standard  Deviation  

Inline  Lunge   2   1   2   2   2   3   3   2   2   2   2   2   2   1   1   1   1   2   2   2   1.85   0.5871  

 

Table  6.  Shoulder  Mobility  Raw  Scores  

Table  6   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average   Standard  Deviation  

Right   2   2   3   3   3   3   3   2   3   2   3   2   3   0   3   3   3   3   3   3   2.6   0.7539  

Left   2   3   3   3   2   3   3   2   2   1   3   2   3   2   3   3   3   3   3   3   2.6   0.5982  

 

Table  7.  Shoulder  Mobility  Final  Score  

Table  7   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average   Standard  Deviation  

Shoulder  Mobility   2   2   3   3   2   3   3   2   2   1   3   2   3   0   3   3   3   3   3   3   2.45   0.8256  

 

 

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Table  8.  Active  Straight  Leg  Raise  Raw  Scores  

Table  8   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average   Standard  Deviation  

Right   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   0.0000  

Left   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   0.0000  

 

Table  9.  Active  Straight  Leg  Raise  Final  Score  

Table  9   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average   Standard  Deviation  

ASLR   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   0.0000  

 

Table  10.  Trunk  Stability  Push  Up  Score  

Table  10   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average   Standard  Deviation  Trunk  Stability  PU   3   2   0   3   0   3   3   2   3   3   2   3   3   3   3   2   3   3   3   3   2.5   0.9459  

 

Table  11.  Rotary  Stability  Raw  Scores  

Table  11   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average  Standard  Deviation  

Right   2   3   2   2   2   3   2   2   1   2   2   2   2   2   2   2   3   2   3   2   2.15   0.4894  

Left   1   2   2   2   3   3   2   2   2   2   2   2   2   1   2   2   3   2   3   2   2.1   0.5525  

 

Table  12.  Rotary  Stability  Final  Score  

Table  12   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average   Standard  Deviation  

Rotary  Stability   1   2   2   2   2   3   2   2   1   2   2   2   2   1   2   2   3   2   3   2   2   0.5620  

 

Table  13.  FMS  Composite  Score  

Table  13   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   Average   Standard  Deviation  

Composite  Score   16   14   13   18   12   18   20   16   14   15   15   16   16   12   14   14   16   14   18   15   15.3   2.0800  

 

Table  14.  Injuries  

Cheerleader   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20  Injuries       Ankle,  

knee     Back,  

concussion     knee       wrist         ankle   foot           hand  

 

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Figure  1  .  FMS  Test  Kit       Figure  2  MPTSM  Injury  Consult  Form  

 

    Figure  3  .  Deep  Squat      

     

  Figure  4  .  Hurdle  Step       Figure  5.  Inline  Lunge  

 

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  Figure  6  .  Shoulder  Mobility       Figure  7.  Active  Straight  Leg  Raise  

 

   

  Figure  8  .  Trunk  Stability  Push  Up   Figure  9.  Rotary  Stability