Health Care > EXAM > NSCA Test Questions & Answers (Chapter 1, 2, 4, 5, 6, 10) | 70 Questions with 100% Correct Answers | (All)

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NSCA Test Questions & Answers (Chapter 1, 2, 4, 5, 6, 10) | 70 Questions with 100% Correct Answers | Updated & Verified

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To which of the following structures do the cross-bridges attach during muscle action? - ANS - Actin When throwing a baseball, an athlete's arm is rapidly stretched just prior to throwing the ball. ... Which of the following structures detects and responds to that stretch by reflexively increasing muscle activity? - ANS - Muscle spindle Which of the occurs during the QRS complex of a typical ECG? i. Depolarization of the atrium ii. Repolarization of the atrium Iii. Repolarization of the ventricle Iv. Depolarization of the ventricle - ANS - ii & iv only Which of the following will lengthen the I-bands of the sarcomeres within the biceps brachii muscle? - ANS - Downward movement phase of the triceps pushdown The production of lactic acid results from the activation of which of the following energy systems? - ANS - Fast Glycolysis A female professional basketball player is using interval training during preseason conditioning to prepare for the upcoming season. Which of the following exercise interval duration and intensity combinations will MOST effectively stimulate the metabolic demands of a basketball game? - ANS - 10 seconds / 95% Decreasing which of the following variables will, with training, cause an increase in the capacity of the lactic acid energy system to produce ATP - ANS - Rest period [Show More]

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