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Ex phys ch 13

final exam

QuestionAnswer
overload principle training effect occurs when a system is exercised at a level beyond which it is normally accustomed, states that system of tissue must be challenged with an intensity, duration, or frequency of exercise to which it is no accustomed.
specificity principle training effect is specific to muscle fibers involved, energy system involved (aerobic vs. anaerobic), velocity of contraction, type of contraction
principle of reversibility gains are lost when overload is removed
components of training to increase VO2max use of large muscle groups, dynamic activity, 20-60 min, 3-5 times/wk, 50-85% VO2max
Vo2max equation Vo2max= HR max x SV max x (a-VO2) max
factors increasing stroke volume increased ventricular volume, increased filling time and venous return, increased plasma volume leading to increase in end diastolic volume ("preload"), others- increased contracitility and decreased total peripheral resistance ("afterload")
effects of endurance training on maintenance of homeostasis more rapid transition from rest to steady-state, reduced reliance on glycogen stores, cardiovascular and thermoregulatory adaptations, due to neural and hormonal adaptations, also due to structural and biochemical changes in muscle
Created by: sbush0804