Exam 1 Flashcards
What is exercise physiology?
The study of exercise on the function of tissues, organs, and systems.
> also, prevention of disease or rehabilitation from chronic illness
What are the two primary concerns of exercise physiology?
- how the body responds to the acute stress of a single bout of exercise (acute exercise)
- How the body responds to the chronic stress of repeated bouts of exercise (training)
Observational study
> Researchers do not manipulate experimental variables
subjects divided into subgroups based on prior history of exercise
• No intervention: example, prior history of exercise
• measure a daily life variable
Experimental study
Researchers manipulate experimental variables (independent variables)
> subjects are randomly assigned to two or more groups or conditions
> intervention
> example: give exercise at a certain intensity then measure variables
Research settings
> laboratory research
field research
Laboratory research benefits
• Easy to mimic or replicate
• can control for variables
Field research benefits
• More authentic/real word situation
• can affects results
• can’t control for all variables such as weather
Ergometers used in the measurement of human work output and power
Bench step, cycle ergometers, treadmill, arm ergometers
Others ergometers besides main ones:
Tethered swimming, swimming flume, rowing machine, sup engometer, and Kayak ergometer
How do we mainly evaluate muscular strength?
Dynamometer (#1), cable tensiometer, hand dynamometer, Isokinetic dynamometer
Why is it hard to quantify power on a treadmill?
Because its hard to account for lateral movement (our internal spring)
Components of effective physiological testing
•
• physiological variables tested should be relevant to the sport
• tests should be sport-specific
• equipment must be calibrated ( precision, validity, accuracy)
• Testing procedures should be repeated at regular intervals
• tests should be valid and reliable
Varying environmental, behavioral, and physiological factors can do what to the body?
Alter the body’s response to an acute bout of exercise.
Examples: temp, humidity, noise level, food intake, sleep
What conditions under which research participants are monitored?
At rest and during exercise = both must be carefully controlled
Line graphs
Used when both the iv and the dv are quantitative (#’s) - time series data
Bar graphs
Best used to compare values across categories (groups).
What tests are used to compare two means?
Dependent (paired) t-test and independent t-test
What is a dependent t-test?
When same subjects are being tested twice (ex: before and after exercise program)
> there is one independent variable
> comparing two means
What is an independent t-test?
When two independent groups ( ex: control group and exercise group)
> one independent variable
> two means
What tests compare multiple means?
> repeated measures analysis of variance (rm-anova)
one way ANOVA
factorial ANOVA
What is a repeated measures analysis of variance?
Scare subjects being tested multiple times ( ex: once a week for 5 weeks )
One way ANOVA?
Three or more independent groups (control group, low intensity exercise group, moderate intensity exercise group, high intensity exercise group) 
> One independent variable
> Comparing multiple means
What is a factorial ANOVA?
Four or more independent groups
> Two or more independent variables
> Comparing multiple means
