NSCA-CSCS Exam Prep: Exercise Science, Questions and answers, 100% Accurate

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NSCA-CSCS Exam Prep: Exercise Science, Questions and answers, 100% Accurate During the concentric phase of the low bar back squat, which of the following muscles acts as an antagonist to the gl... uteus maximus? a. quadriceps b. hamstrings c. psoas major - ✔✔-c Which of the following muscle groups and types of muscle actions are associated with the downward phase of the dumbbell biceps curl? a. Primary group- elbow extensors, Primary action- eccentric b. Primary group- elbow flexors, Primary action- eccentric c. elbow flexors- concentric - ✔✔-b Which of the following rest periods is most appropriate for a middle distance runner performing 800m running intervals in 2 min? a. 2 min b. 4 min c. 6 min - ✔✔-c As compared to males, the potential for force production of females per muscle cross-sectional area is a. lower b. similar c. higher - ✔✔-b Which of the following cardiovascular adaptations to chronic aerobic exercise contributes the most to improved aerobic endurance performance? a. increased maximal cardiac output b. decreased resting BP c. lowered resting HR - ✔✔-a Which of the following events occurs in the hamstring muscles during the concentric muscle action of leg (knee) curl exercise? a. the A band length increases b. the I band length stays the same c. the H zone length decreases - ✔✔-c Depletion of which of the following fuel sources hinders marathon performance most? a. muscle glycogen b. triglycerides c. creatine phosphate - ✔✔-a Which of the following situations would most inspire an athlete with a high motive to achieve success? a. a very easy competition in which the probability of success is virtually guaranteed b. a challenging situation in which the probability of success to failure is even c. an extremely difficult situation in which the probability of success is highly unlikely - ✔✔-b Which of the following is a characteristic of Type II muscle fibers? a. slow contraction speed b. small fiber diameter c. high power output - ✔✔-c Which of the following relies predominantly on the phosphagen energy system? a. 200m swim b. 3k race c. 5RM push press - ✔✔-c Which of the following muscle actions produces the greatest amount of muscle force? a. eccentric b. isometric c. concentric - ✔✔-a Which of the following exercises increases axial bone mineral density most? a. seated leg press b. barbell shoulder press c. dumbbell chest press - ✔✔-b Which of the following exercises is an example of a first-class lever? a. triceps pushdown b. lateral raise c. biceps curl - ✔✔-a Which of the following muscle actions precedes a countermovement jump? a. concentric b. eccentric c. isometric - ✔✔-b Which of the following increases serum testosterone most during resistance training? a. high intensity (10RM) b. short rest periods (30-60s) c. moderate resistance (67-85% of 1RM) - ✔✔-b Which of the following decreases as a result of resistance and increases due to aerobic training? a. muscle fiber size b. mitochondrial density c. osteoblast synthesis - ✔✔-b An exercise session consisting of which of the following modalities results in the largest increase in serum HGH concentration? a. moderate-intensity aerobic exercise b. moderate-intensity resistance exercise c. high intensity resistance exercise - ✔✔-c A female college age athlete began a strength and conditioning program 10 weeks ago. In the weeks following, she continues to see gains in her strength. Which of the following most likely contributes to this change? a. improved neuromuscular efficiency b. conversation of Type I to Type II muscle fibers c. increased muscle fiber size - ✔✔-c An increase in which of the following is a marker of aerobic overtraining? a. body fat % b. muscle glycogen c. creatine kinase concentration - ✔✔-c Use of a weight belt is the most important when performing which of the following exercise at a 1RM load? a. leg press b. bench press c. back squat - ✔✔-c An increase in which of the following increases oxygen delivery to the active muscles during acute aerobic exercise? a. blood hemoglobin b. cardiac output c. plasma volume - ✔✔-b If calcium is not returned to the sarcoplasmic reticulum, which of the following best describes what occurs in the muscle? a. fused tetany b. flaccid paralysis c. twitch summation - ✔✔-a A novice athlete has been following an aerobic endurance training program for 12 months. Which of the following is most likely to occur? a. decreased resting a-vO2 difference b. decreased maximal tidal volume c. increased restring stroke volume - ✔✔-c A female marathoner trains at sea-level. She travels to a race venue held at an altitude of 5280 ft (1625 m). Which of the following BEST describes the immediate physiological effect? a. Increased cardiac output b. decreased ventilation rate c. decreased tidal volume - ✔✔-a Which of the following is used to calculate power? a. force x distance b. work / time c. acceleration / force - ✔✔-b Which of the following activities occurs primarily in the transverse plan? a. barbell push jerk b. bent-over lateral raise c. bent-over row - ✔✔-b Which of the following may hinder an athlete's focus during competitive sport performance? a. placekicker stretching his hamstrings or checking the turf b. pitcher's awareness of players on base c. basketball player focusing on other players during a free throw - ✔✔-b Which of the following components stimulate new bone? a. progressive overload, direction of force, and rate of loading b. rate of loading, progressive overload, and rest period c. rest period, direction of force, and progressive overload - ✔✔-a Gas exchanged during respiration occurs in which of the following structures? a. veins b. bronchioles c. capillaries - ✔✔-c Which of the following protocols most closely stimulates the metabolic demands of a basketball game? a. Work Interval-10s, Intensity-95% b. Work Interval-30s, Intensity-75% c. Work Interval-50s, Intensity-55% - ✔✔-a Which of the following factors determine the primary energy system used during exercise? a. exercise intensity and exercise mode b. exercise intensity and exercise duration c. exercise duration and exercise mode - ✔✔-b Which of the following involves training loads that most associated in serum testosterone concentrations? a. muscular strength b. muscular hypertrophy c. muscular endurance - ✔✔-a A parent informs the strength and conditioning professional that her child has been classified as being at Tanner's Stage 1. What does this classification assess [Show More]

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