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EXAM 1 APK pt 1
EXAM 1 APK
| Question | Answer |
|---|---|
| Direction of heart flow | right atrium, right ventricle, lungs, left atrium, left ventricle, body |
| smallest contractile unit of skeletal muscle | sarcomere |
| what describes type 1 muscle fibers | fatigue resistant with high aerobic energy supply |
| what are two main dividsions of the skeletal system | appendicular and axial |
| some of the highest bone mineral densities have been seen in which athlete | gymnasts |
| plane that divides right and left sections | sagittal |
| as an athletes body size increases, which of the following describes how body mass and muscular strength change | as body mass increases more rapidly than muscular strength |
| the extent to which each of the 3 energy systems contributes to ATP production depends primarily on the ________ of the muscular activity and secondarily on the ____________ | intensity; duration |
| two individuals of the same body mass are lifting weights. Assuming all other factors to be equal, the persons with tendons inserted on the bone _________the joint center should be able to lift___________weight | farther from; a heavier |
| if the stress of a training session is too great, which is true | anabolic reactions<catabolic reactions in the muscle |
| polypeptide hormones are made of chains of which of the following substances | amino acids |
| serum levels of which of the following hormones will increase as a result of performing a resistance training workout that involves large muscle group exercises with loads 85-95% of 1RM and 30- to 60- second rest periods in athletes with two or more years | testosterone |
| athlete is used to perform high intensity aerobic exercise, will change to longer duration, submaximal exercise on a regular. what will happen to energy supply | transition from almost exclusively carbohydrate to mostly fat |
| two athletes are competing in upcoming competitions, a weightlifting meet and a marathon. which energy systems will each be primarily using respectively | phosphagen and oxidative |
| the excess postexercise oxygen consumption experienced by athletes is caused by all of the following except | decrease in body temp (it is increased) |
| the krebs cycle occurs in which portion of the cell | mitochondria |
| a type of training that consists of a predetermined interval of exercise and rest where one would be able to do more work at higher intensities with less fatigue is known as | interval training |
| aerobic endurance athlete wants to have edge over athletes to improve his lactate threshold, what training would he do and what direction would this shift the threshold | high intensity; to the right |
| which have been observed in men in elevated concentrations up to 30 minutes after a resistance training workout | testosterone, growth hormone, and cortisol |
| Minimal essential strain (MES) is the minimal threshold stimulus needed to cause which changes | bone formation |
| the law of mass action states | the concentrations of reactants or products will drive the direction of the reactions |
| which describes the portion of the total energy cost of exercise that must be supplied through anaerobic mechanisms due to the slow response of the aerobic system to the initial increase in the demand for energy | oxygen deficit |
| ________ is the enlargement of muscle fiber cross-sectional area and __________ is the increase in the number of muscle fibers via longitudinal fiber splitting | hypertrophy and hyperplasia |
| what are primary neural adaptations to anaerobic training? | increased neural drive and reductions in inhibitory mechanisms |
| which of the following regarding connective tissue adaptations to anaerobic exercise is false | - |
| consistent resistance training may improve acute hormonal response to an anaerobic workout | true |
| an athlete has spent the last four resistance training sessions overworking his body. he is hoping to see a substantial increase in performance after a week of active rest what describes his current condition | functional overreaching |
| which of the following are potential markers of aerobic overtraining? | change in mood states, decreased total testosterone concentration, decreased performance in speed tests |
| acute anaerobic exercise results in increased | - |
| which of the following physiological characteristics decreases as an adaptation to aerobic endurance training? | resting cardiac output |
| the greatest amount of oxygen that can be used at the cellular level for the entire body is referred to as | maximal oxygen uptake |
| which of the following are the immediate physiological adjustments to elevations (3,900 ft) | hyperventilation and increased cardiac output |
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genesis13