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ENS 304 Physiology of Exercise
(section 2)
Fred W. Kolkhorst, Ph.D.ENS 311; 594-1924
office hours: MWF 9:00-11:00 http://www-rohan.sdsu.edu/course/ens304/public_html/section2/index.html
Exercise Physiology A biological study of physical
activity stresses, both acute effects and training adaptations
Typical ergometers used to study exercise effects– cycle– treadmill
Course Prerequisites
classified as a major in kinesiology or nutrition
grade of C (not C-) or better in BIOL 336 (Human Physiology) or equivalent course
ENS 210 or equivalent course
If WebPortal indicates that you have NOT met these prerequisites, you MUST provide documentation to me.
How to be Successful in Physiology of Exercise
Class will begin at 8:00, everyone is to be on time. If you are late, enter the back door of the classroom so as not to disturb others
Cell phones are to be turned off during class YOU determine your success through your consistent
effort Take an active part in your learning; don’t hesitate to
ask questions or visit me, that’s what I’m here for Attempt to understand rather than memorize Study with classmates on a regular basis Sit in the front, don’t miss class
e-book available from McGraw Hill
1. Go to http://ebooks.primisonline.com 2. Click on the “McGraw-Hill e-book” icon (the big yellow
”e”).3. Review the 5 steps listed on the screen then click
“Next”.4. On “Step 1” Click “Social Sciences and Humanities”. 5. Select the appropriate discipline, and then select text
title. (Be sure to select correct edition.) Powers & Howley, Exercise Physiology: Theory and Application to
Fintess and Performance, 2007.
6. Follow the screen prompts.
eInstruction Personal Response Pads(clickers)
We will use the CPS Personal Response Pads (i.e., “clickers”)
Purchase clicker from Aztec Shops Before you can use clicker, must
register through Blackboard– Instructions found in Blackboard
(Tools/CPS Connection)– Must first create an account and
register your clicker Register clicker for class by Tue,
Sep 4
What is a Clicker?
Classroom Performance System Each student has a clicker Clickers send wireless signals Computer has a receiver Displays responses from class
Why Clickers?
Questions will be posed during each class that require your response
Enhances student learning Encourages interaction Provides feedback Increase active learning Quizzes will be given periodically using the
clickers Exams will be administered with paper/pencil
Course Grading
Four exams 40-60 points each (200 points)
Eight unannounced quizzes 5 points each– will throw out two lowest scores (60 points)
Plusses and minuses will be used for course grades
Review of Physiological Principles
atoms, molecules, and ions
substrates products
ATP ADP + Pi + energy
glucose 2 pyruvic acid 2 lactic acid
Review of Physiological Principles
Enzymes speed up reaction rates
ATPase
ATP <———> ADP + Pi + energy
carbonic anhydrase
H+ + HCO3- <——————> H2CO3 <——> H2O + CO2
Review of Physiological Principles
pH buffer homeostasis steady-state
Absolute and Relative Comparisons
A 100-lb woman can bench press 50 lb and a 200-lb man can bench press 75 lb. Who is the strongest? Explain.
A. 100-lb womanB. 200-lb man
Absolute strength – man can lift 25 lb more than woman
Relative strength – woman can lift 0.5 lb / lb body weight whereas man can lift only 0.375 lb / lb body weight
Absolute and Relative Comparisons
QuestionWould you prescribe an absolute or relative target HR in a fitness class of 20- and 80-yr old clients? Explain.
Interpreting GraphsRelationship between Variables
Independent variable – one that is manipulated/controlled by investigator
Dependent variable – one that is measured to determine response from varying independent variable
Relationship of Variables
Running Velocity
HR
Linear Curvilinear
Running Velocity
Blood [La]
Identify the dependent and independent variables
Interpreting Graphs
Figure 1 Figure 2
