NCSF Exam Correct Questions & Answers 2023 (GRADED A+)

Sugar - ANSWER What is the only fuel source that can be used during anaerobic metabolism? Carbohydrates, lipids (fats) - ANSWER __________ serve as the primary fuel for exercise, while ________ are primarily used during rest and low-intensity physical activity. Aerobic metabolism can occur using what fuel sources? - ANSWER Carbohydrates, fats, protein and various associated substrates What is the primary fuel source during 1) a vertical jump, 2) a 3RM deadlift, and 3) a 10-second sprint? - ANSWER 1) stored ATP, 2-3) stored creatine phosphate What are the primary storage sites for glycogen within the body? - ANSWER Skeletal muscle (~400g) and the liver (~95g) How much rest is needed to fully recover from an exercise that significantly drains creatine phosphate stores within a muscle? - ANSWER 2-5 minutes As a client increases their VO2max, he or she will have a lower _________ during any sub-maximal exercise intensity; this is mainly attributed to an increase in __________. - ANSWER Heart rate, stroke volume Cardiac output is a product of: - ANSWER Stroke volume x heart rate Cellular metabolism using oxygen and various substrates for fuel occurs in the: - ANSWER Mitochondria What muscle fiber type has the lowest capacity to produce force? - ANSWER Type I (slow-twitch oxidative) Slow oxidative muscle fibers have the smallest relative _____________ and are primarily fueled via __________ metabolism. - ANSWER Diameter; aerobic Following high-intensity exercise, a client may continue to burn additional calories for a number of hours due to a phenomenon known as: - ANSWER Excess post-exercise oxygen consumption (EPOC) What mineral is released from the sarcoplasmic reticulum to initiate the cascade of events leading to a muscular contraction? - ANSWER Calcium What type of fatigue is associated with reduced muscle glycogen storage following localized muscular work? - ANSWER Peripheral fatigue How is force production improved through neural adaptations? - ANSWER Via increased motor unit recruitment, faster firing rates, and improved firing synchronicity Identify at least three primary causes for short-term (acute) muscular fatigue between sets. - ANSWER Exhaustion of ATP/creatine phosphate reserves, tissue acidity, insufficient oxygen, reduced enzyme activity, tubular system disturbances If excessive tension is placed upon a given muscle, __