Exercise and Sports Science Chapter 4

1. Skeletal muscle _____ are a heterogenous group of fibers with distinct contractile and metabolic characteristics.
5. The ________ works with insulin to help skeletal muscle fibers take in glucose (abbreviation).
6. the anatomic, physiologic, and functional responses and adaptations that occur during and following movement (definition).
7. The condition of the systems of the body when the body is in a resting state; the maintenance of relatively stable internal physiological conditions. (definition)
8. Fat and carb roles are reversed during exercise at the _____ ____ to utilize energy differently.
10. _____ is the power or capacity to produce a desired effect.
12. system that increases in the release of epinephrine and norepinephrine. (definition)
13. ____ ____ is oxygen production through oxygen use in cells.
14. Heat is lost from the body through 4 processes: conduction, convection,______, & evaporation.

1. The combination of amenorrhea, disordered eating, and osteoporosis makes up the _____. (3 words)
2. ____ is a condition where bone density decreases and causes the bone to weaken.
3. The body utilizes ____ to fuel the cells prior to and during physical activity.
4. A _____ person usually needs to be aware of their low blood glucose levels.
7. Factors affecting exercise in the heat: fitness level, use of medication & supplements, acclimation to the environment,_______, exercise intensity & duration, type & amount of clothing, environmental temperature & humidity.
9. _____ gas exchange involves the use of technical equipment for the measurement of pulmonary ventilation and concentration of oxygen and carbon dioxide in the expired air.
11. An _____ assessment of physical activity for larger groups of individuals can be accomplished through use of physical activity questionnaires, pedometers and accelerometers.