NETA Module 2: CH 7 Exercise Physiology Final Complete Exam 2024 Tested

NETA Module 2: CH 7 Exercise Physiology Final Complete Exam 2024 Tested fatty acid oxidation - CORRECT ANSWER-Contributes to energy production during lowintensity activities spanning over an extended period of time. EX: walking, biking, and swimming. substrate-Fats and fatty acids size principle - CORRECT ANSWER-principle asserting that the size of the motor neuron dictates the order of motor unit recruitment, with small-sized motor neurons being recruited first All-or-none law - CORRECT ANSWER-states that either all or none of the muscle fibers within a given motor unit are activated recruitment - CORRECT ANSWER-The stimulation of additional muscle fibers. As more fibers are recruited, the magnitude of muscular force increases. Summation - CORRECT ANSWER-the accumulative effect of continuous electrical stimuli (action potentials) resulting in smooth muscular contraction without complete relaxation motor unit - CORRECT ANSWER-the functional unit of the neuromuscular system. It consists of the motor neuron, its branches (axon), and the muscle fibers it innervates Type IIA - Fast Oxidative Glycolytic (Fast Twitch) - CORRECT ANSWER-intermediate in their contractile speed and have moderately well-developed capacity for both aerobic and anaerobic energy production support moderate to high-intensity activities such as a set of resistance training exercise performed to 8-20 repetitions. Type IIB & IIX- Fast Glycolytic (Fast Twitch) - CORRECT ANSWER-characterized by a fast speed of contraction, a high amount of force production, but a low resistance to fatigue. used to support speed, strength and power-oriented activities such as sprinting and power-lifting Type I - Slow Oxidative (Slow-Twitch) - CORRECT ANSWER-produce a lower amount of force, yet have a high resistance to fatigue. These fibers derive most of their energy from the aerobic metabolic pathways. used during endurance type activities such as walking, running, cross-country skiing and swimming Anaerobic threshold - CORRECT ANSWER-the point, during progressively intense exercise, at which the body can no longer meet the demand for oxygen and must rely heavily on anaerobic metabolism to supply the needed energy