Changes in pH and ionic balance produce major alterations in the structure and f
ID: 121802 • Letter: C
Question
Changes in pH and ionic balance produce major alterations in the structure and function of the sarcoplasmic reticulum with unaccustomed exercise. A. True B. False Training-induced physiological adaptations depend primarily on what aspect of overload? A. intensity B. frequency C. duration John is 40 years of age with a resting HR of 70 beats middot min^-1. What is his training HR range using 70% of HR_reserve? A. 99-126 B. 131-147 C. 175-180 D. 107-156 The Karvonen method will result in a _____ heart rate training threshold compared to using a percentage of predicated maximal heart rate. A. Slightly lower B. Drastically lower C. Higher D. Similar Sympathetic form of overtraining is more common. A. True B. False Aerobic training increases blood flow to skeletal muscles during maximal exercise because of all of the following except: A. Fewer type II fibers B. Larger maximal cardiac output C. Reduced flow to nonactive tissues D. Greater capillarization of muscle During pregnancy, women should avoid supine exercise, contact sports, and scuba diving. A. True B. False The proper frequency of aerobic training for adult in search of health-related fitness is 3-5 days-week^-1. A. True B. False Approaches used to determine if a true gender difference exists in muscle strength include the muscle's cross-sectional area and absolute muscle strength as total force exerted. A. True B. FalseExplanation / Answer
39. There is a detrimental effect on sarcoplasmic reticulum due to changes in muscle pH, high energy phosphates, ionic balance, or temperature which is linked with unaccustomed exercise. So, True.
40. Training-induced physiological adaptations depend primarily on intensity of overload which consists of energy expanded per unit of time; power output; relative metabolic level expressed as percentage of VO2(Max); exercise at or above the lactate threshold OBLA(Onset of Blood Lactate Accumulation) and exercise heart rate or percentage of max heart rate.
41. Maximum heart rate(HR)= 220-40(age) =180
Resting HR= 70
Heart rate reserve= Maximum HR-Resting HR = 180-70=110
Training HR reserve = 99-126.
42. The Karvonen method of calculating one's exercise heart rate is considered the gold standard. With fitness, the heart becomes more efficient at pumping blood to the rest of the body. When resting, the number of beats per minute slows down. The Karvonen calculation, devised by a Scandinavian physiologist, takes this into consideration.So, option A.
43. Parasympathetic Overtraining experienced by endurance athletes is a state of rest in which your body is chronically trying to repair itself. Signs and Symptoms include heavy fatigue, insomnia, no libido, chronic tiredness, low motivation, low resting heart rate, and low blood pressure.
Sympathetic Overtraining (usually experienced by power or speed athletes) is a chronic state of “fight or flight”. Signs and Symptoms include irritability, restlessness, poor sleep, weight loss, poor performance, and low libido.
Parasympathetic form is more common.
44. Type II fibers is associated with anaerobic activity. So, A.
45. True
46.False.
47.True.
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