NSCA - CSCS Chapter 1-22 review questions & Answers, 100% Accurate, rated A+

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NSCA - CSCS Chapter 1-22 review questions & Answers, 100% Accurate, rated A+ During a muscle contraction what structures do the cross bridges attach to? - ✔✔-actin What substance helps regul... ate muscle actions? - ✔✔-calcium What substance excites the muscle fibers of a motor unit? - ✔✔-acetylcholine What muscle fiber type is most beneficial for a marathon runner? - ✔✔-type I When a muscle is rapidly stretched prior to an explosive movement like throwing for example, which structure detects and responds to that stretch by reflexively increasing muscle activity? - ✔✔-muscle spindle The hearts electrical impulse is first initiated by the _____ . - ✔✔-SA node During the QRS complex of a typical ECG repolarization occurs in the ____. - ✔✔-atrium During the QRS complex of typical ECG depolarization occurs in the ___. - ✔✔-ventricle Fast twitch muscle fibers - ✔✔-type II During a muscle contraction when the sarcoplasmic reticulum is stimulated to release calcium ions, the calcium binds to the ____. - ✔✔-troponin ____ is the ultimate source of energy for a muscular contraction - ✔✔-ATP Which of these substances can be metabolized anaerobically? - ✔✔-carbohydrates The primary energy system used during a training session depends primarily on the _____. - ✔✔- intensity The production of lactic acid results from the activation of which energy system? - ✔✔-fast glycolysis Which energy system has the highest rate of energy production? - ✔✔-fast glycolysis How many ATP are produced by the oxidative energy system from the degradation of 1 glucose molecule? - ✔✔-38 Which energy system is predominantly active at the initiation of all exercise? - ✔✔-phosphagen Which enzymes catalyzes the rate-limiting step of glycolysis? - ✔✔-phosphofructokinase (PFK) After a bout of resistance training, ______ provide the body with information about the amount of physiological stress, metabolic demands of exercise, and type of physiological stress. - ✔✔-acute hormonal secretions Which hormones enhance muscle tissue growth - ✔✔-growth hormone and cortisol 1 main physiological role of growth hormone is that it _____ glucose utilization - ✔✔-decreases 1 main physiological role of growth hormone is that it _____ amino acid transport across cell membranes - ✔✔-increases 1 main physiological role of growth hormone is that it _____ protein synthesis - ✔✔-increases 1 main physiological role of growth hormone is that it _____ glycogen synthesis - ✔✔-decreases 1 main physiological role of growth hormone is that it _____ utilization of fatty acids - ✔✔-increases Which hormone has the greatest influence on neural changes? - ✔✔-testosterone Which hormone level is higher in women than men when at rest? - ✔✔-HGH What format of resistance training workout promotes the highest growth hormone increases following the exercise session? - ✔✔-30 second rest- high volume - 3 sets The knee is what type of a joint? - ✔✔-Synovial work = - ✔✔-force x distance power = - ✔✔-work/time During a free weight exercise, muscle force varies depending on the ____ - ✔✔-joint angle A vertical jump involves knee, hip, and shoulder movement primarily in which plane? - ✔✔-sagittal Which muscle fiber type has the greatest potential to change into a more aerobic form when trained? - ✔✔-Type IIx What effect would 30 minutes of intense cardio every other day have on a weightlifters resistance training program? - ✔✔-power gains will decrease Which of these exercises is most beneficial for improving bone mineral density? - ✔✔-front squat Which muscle fiber types are bypassed as a result of selective recruitment that allows a weightlifter to generate max power during a 1RM lift? - ✔✔-Type I The intial decrease in muscular strength caused by detraining is due to undesired changes in the ____? - ✔✔-nervous system What adaptation will occur in the muscles of a high school cross country runner who has been training aerobically for 6 months? - ✔✔-hypertrophy of Type I fibers _____ is the amount of blood ejected from the left ventricle during each beat. - ✔✔-stroke volume _____ is defined as the average blood pressure throughout the cardiac cycle - ✔✔-mean arterial pressure ____ is an early adaptation to acclimatizing to high altitude. - ✔✔-increased resting cardiac output When males and females are compared relative to muscle cross sectional area, it appears that the potential for force production is _____ - ✔✔-equal in males and females When males and females are compared relative to upper body strength, upper body strength is _______ - ✔✔-greater in males than to females What is the most significant adaptation to chronic resistance training for an older adult? - ✔✔-increased muscle mass What is the most significant adaptation to doing PNF stretching? - ✔✔-increased flexibility An eight year old boy dramatically increased his upper body strength after following a six month resistance training program. What is most likely responsible for this gain? - ✔✔-improved neuromuscular function Growth cartilage in children is located at the plates, joint surface, and insertion points, however it is not found at the ____. - ✔✔-diaphysis Increased bone density, strength, and resistance to injury are likely outcomes of preadolescent resistance training. However _____ is not a likely to occur. - ✔✔-hypertrophy The condition characterized by a bone mineral density more than 2.5 SD below the young adult average is called _______. - ✔✔-osteoporosis During the closing seconds of a basketball game an athlete is shooting a free throw and his team is down by 1 point. The player is nervous about the outcome. What is he experiencing in his body? - ✔✔-state anxiety An Olympic weightlifter attempting a PR is able to ignore the audience to concentrate solely on his performance. Which of the following abilities is he most likely using to perform the exercise? - ✔✔- selective attention _____ can be defined as a cognitive psychological skill in which the athlete uses all their senses to create a mental experience of an athletic performance. - ✔✔-mental imagery Distance runners that tend to mentally monitor their efforts to optimize pace are using a monitoring strategy of _______. - ✔✔-association Distance runners that tend to distract themselves more often in an attempt to reduce perceived pain and fatigue of their efforts are using a monitoring strategy of ______. - ✔✔-dissociation Prior to performing the long jump an athlete reviews and concentrates on the technique required to jump as far as possible. Which of the following strategies is the athlete using to prepare for the jump? - ✔✔-focus on task relevant cues Which of the following is most important to achieve the ideal performance state? - ✔✔-personal control An athletes desire to perform to his or her potential is an example of ______. - ✔✔-intrinsic motivation _____ is an athletes wish to engage in competition or social comparison. All things being equal between 2 athletes, whoever is higher in _____ will be the better athlete because he or she has an appetite for competition. - ✔✔-achievement motivation For a high school football team, any player that squats 2x their body weight has their name placed on the wall. This is an example of - ✔✔-positive reinforcement A coach says if the team hustles in practice there will be no conditioning at the end of practice. This is an example of: - ✔✔-negative reinforcement Reprimanding a player after a fumble is an example of - ✔✔-positive punishment Taking a player out of the game and sitting them on the bench because they were yelling at the ref is an example of - ✔✔-negative punishment How does an athletes optimal level of arousal change with limited skill, ability, or experience performing the activity? - ✔✔-decreases Which substance has been shown by multiple research studies to improve strength performance? - ✔✔- creatine Aerobic endurance athletes would want to avoid erythropoietin use because it may cause an unregulated increase in _______ production. - ✔✔-red blood cell Which protein has an amino acid profile most similar to the body's needs - ✔✔-egg Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalnine, Threonine, Tryptophan, & Valine are all what type of amino acids: - ✔✔-essential Alanine, Arginine, Asparagine, Aspartic acid, Cystine, Glutamic acid, Glutamine, Glycine, Proline, Serine, & Tyrosine are all what type of amino acids: - ✔✔-nonessential Proteins of animal origin like those found in egg [Show More]

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