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Lecture on strength training exercises that I gave as a lecture for Wilmington College students in HPE 345, Strength Programming for Sport. Taken from the text: Science and Practice of Strength Training, 2nd edition.
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STRENGTH EXERCISES
A General Overview
With so many exercises to choose from in designing a program, it is important to know the factors behind each exercise.
The MOST IMPORTANT exercise In any sport, the most important
exercise is the actual sport movement. If my sport is sprinting, I need to practice
sprinting the most. If my sport is volleyball, I need to
actually play volleyball the most. If my sport is arm-curling, then I need to
practice arm curls the most. If my sport is underwater basket
weaving, well….
Strength Exercise Classification
Isometric (same length) Joint angle specific!
Isokinetic (same speed) Research and Sports Medicine
Isotonic? (same tone…not really) Tension in a muscle changes as the moment
arm changes during the exercise Dynamic
Concentric Eccentric Reversible
The most popular
Dynamic exercises with concentric muscle action Typical up/down weightlifting
Further Classification
Non-specific Squats for a javelin thrower Bench press for a basketball player
Specific Barbell pullover for a javelin thrower Push jerk for basketball player
Primary Sporting Movement w/ resistance Throwing overweight javelins Rebounding drill with a weighted vest for
b-ball
Strength Topography
Strength topography is the comparative strength of different muscle groups in the body. An athlete can be extremely strong in
one movement, say bench press, but extremely weak in another, such as a barbell row.
Estimated ratios exist between the different muscle groups in the body. For example, the hamstrings should be 2/3 as strong as the quadricep muscle group.
Strength Topography
Ankle: Plantar Flexion/Dorsiflexion 3:1
Knee: Extension/Flexion 3:2
Strength Topography
Hip Extension/Flexion 1:1
Elbow Flexion/Extension 1:1
Strength Topography
Lumbar Spine Flexion/Extension 1:1
Exercise Selection for Beginning Athletes
Strengthen muscle groups, that, if weak can cause potential injuries. Neck in wrestling/football Rotator cuff in throwing sports Hamstrings in running sports
Exercise Selection for Beginning Athletes Train the large muscles in the
core/trunk of the athlete. Specifically, the abdominal wall and spinal erectors should be trained.
Lifts should be performed through the full range of motion.
Use only submaximal efforts, do not “max-out”
3 year rule….
Selecting Exercises for Advanced Athletes Specificity becomes more important
the more advanced an athlete is. Training drills that are not relevant
are often discarded for the regime of an elite athlete.
How are exercises specific? The working muscles The type of resistance The rate of force development (RFD) The velocity of movement
Working Muscles
The same working muscles used in the given sport movement should be emphasized in the training regimen
Examples: Rock Climbers do not want to spend a lot
of time doing barbell squats Basketball/Football players do want to
spend a lot of time doing barbell squats
Type of Resistance
Barbell (Most Typical) Compound
Bands/Chains+Barbell Lighter bands are usually better for
sports Bands/Cords Bodyweight
Pushups, Situps, Pistol Squats
Rate of Force Development
The goal of training can lean towards: Increasing Fmm (low velocity/high force
movements) This strategy is only useful is ESD is less
than 50% (no modern coach in the west actually
calculates ESD) Decreasing ESD (high velocity/low force
movements)
A practical question:
2 athletes of similar dimensions have equal standing vertical jumps. They have different Fmm abilities though. Athlete A squats 1x their bodyweight, while athlete B squats 1.5x bodyweight.
For which of these athletes will improving Fmm in the barbell squat be more beneficial? Why?
Velocity of Movement
Performance will tend to improve relative to the velocity of the performed movement
The book recommends training movement velocities in the same velocity range as the given sport This is very impractical, hard to emulate
Velocity of Movement
Strength exercises should not be performed with TOO light weight and high velocity, if this is done, Fmm will not improve.
Research shows that strength gains were much higher in bench press when the reps were done at 1 rep every 4 seconds or slower. Trying to move as fast as possible limited strength gains. (seems to contradict Waterbury)
Velocity of Movement
Training Tempo Tempo is not really discussed in this
chapter Lifting tempos are broken down into
eccentric phase, isometric phase, and concentric phase of the lift.
An example of tempo would be 3-0-1. This would mean the “down” part of the lift would take 3 seconds, the isometric part would be disregarded, and the concentric part should take one second
Tempo Recommendations
Athletes tend not to like tempo and will often disregard it if you don’t enforce it
Tempo doesn’t make much sense when you think about motor recruitment, but the purpose of lifting is not always motor recruitment; that can be left up to sport specific exercises in some/many situations
Tempo Recommendations
It is OK to use tempo in static lifts if you are also using explosive exercises in your program.
It can be a good idea to use tempo only for the eccentric part of the lift, such as a 5-0-1 tempo. This way you can still have the athlete perform the concentric part somewhat explosively.
Velocity of Movement
During static lifts (bench, squat, presses, pulls, etc.) it can be a good idea to prescribe a lifting tempo. The main reason for this is that it is a variable that can be manipulated throughout the year to prevent accommodation
Peak Contraction Principle
The peak contraction principle is based on adding more resistance to the parts of the lifts that are more difficult
This is effective in increasing strengthbut might have a limited value in transfer to sport abilities
Another Method of Peak Contraction In this exercise, resistance is
manually applied in the most difficult part of the movement.
Accommodating Resistance
Cam Based Machines
Chains/Bands
Attempting to maximize tension through the whole range of motion rather than onepoint
So What?
I am in favor of the ‘general’ theory of strength.
Basically, no matter how you lift weights, you will not be able to emulate the muscle-tendon interaction present in most sporting movements
Therefore it is usually pointless to get carried away with strange weightlifting exercises, although it is good to switch things up for the sake of variety
More General Theory
Increase your muscle mass and power with power lifts (squats/bench) and olympic variants. Do your lifts slow and controlled to increase strength. Don’t worry about the weight room to increase speed, worry about the weight room to increase force.
Use sport specific exercises and plyometrics to address rate of force development and velocity, but remember straight velocity cannot be improved.