Chapter 9 Flashcards
What is the goal of exercise physiology
Understand how to maximize physical performance
what is physiology of physical activity
the study of changes/responses of immediate and repeated physical activity
Epidemiology definition
the study and alaysis of the distribution, patterns, and determinates of health and disease conditions in defined population
research methods for physiology of physical activity
- Ergometers: treadmills, leg and arm cycles, and swimming flume
- Oxygen uptake: electronic analyzers, gas volumes
- Body composition: underwater weighing, calipers, DEXA, BOD POD
- Biochemical methods: blood samples, muscle biopsies
- Animal models: mammals that match humans as closely as possible; can control the subject and environment more easily and specifically
- Field work (outside lab): technological advances that make field workmore practical
Skeletal muscles
Type 1, Type 2a, Type 2x, Type 2b
<- Muscular endurance vs muscular strength ->
Isometric def and examples
Isometric: tension without change in muscle length
Plank / wall sit
Isotonic def and examples
Isotonic: muscle changes length without changing tension
Bench press / bicep curl
Isokinetic def and examples
Isokinetic: muscle length changes at a constant rate
Leg Extensions
What two factors increase muscular strength?
Muscle size and neural adaptations
Cardiac output def
the amount of blood pumped out of the heart each minute
What is stroke volume for the heart
amount of blood pumped from the left ventricle each beat
What does the respiratory system do?
regulates the exchange of gases externally and internally
VO2 definition
oxygen uptake
VO2 max definition
the maximal oxygen uptake
Acclimatization
The process in which an individual organism adjusts to a change in its environment
