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Title: Compare and contrast the concepts of progressive resistance exercise (PRE) and the overload ... Post by: kaefol on Mar 4, 2018 Compare and contrast the concepts of progressive resistance exercise (PRE) and the overload principle.
What will be an ideal response? Q. 2 What is the role of genetics and training in determining muscle ber type? What will be an ideal response? Q. 3 List the three muscle ber types and the contractile characteristics of each. What will be an ideal response? Q. 4 Discuss the types of muscle contractions. What will be an ideal response? Q. 5 Discuss the tests for determining muscular strength. What will be an ideal response? Q. 6 Discuss the function of a motor unit in a muscle contraction. What will be an ideal response? Title: Compare and contrast the concepts of progressive resistance exercise (PRE) and the overload ... Post by: amandagrace on Mar 4, 2018 The overload principle states that a muscle will increase in strength and/or endurance only when it works against a workload that is greater than normal. Progressive resistance exercise (PRE) is the application of the overload principle to strength and endurance exercise programs. Genetics plays a primary role in determining muscle ber type. Fiber type distribution can be altered by training. Most studies have shown exercise training to increase the relative proportion of intermediate bers. Human skeletal muscle can be classied into three major ber types: (1) slow-twitch, (2) intermediate, and (3) fast-twitch. Slow-twitch bers shorten slowly but are highly resistant to fatigue. Fast-twitch bers shorten rapidly but fatigue rapidly. Intermediate bers possess a combination of the characteristics of fast- and slow-twitch bers. Isotonic or dynamic contractions are contractions that result in movement of a body part. Isometric contractions involve the development of force but result in no movement of body parts. Concentric contractions are isotonic muscle contractions involving muscle shortening. In contrast, eccentric contractions (also called negative contractions) are dened as isotonic contractions in which the muscle exerts force while lengthening. Muscular strength can be measured using the one repetition maximum (1 RM) test, which measures the maximum amount of weight that can be lifted one time. Because the 1 RM test is not suitable for older individuals or deconditioned people, often the estimated 1 RM test is used to evaluate muscular strength. The estimated 1 RM test measures the maximum amount of weight that can be lifted 10 times (called the 10 RM). Using this weight, you can estimate 1 RM using the 1 RM Prediction Table (Table 4.2). Muscle contraction is regulated by signals coming from motor nerves. Motor nerves originate in the spinal cord and send nerve bers to individual muscles throughout the body. The motor nerve and all the muscle bers it controls is called a motor unit. Title: Compare and contrast the concepts of progressive resistance exercise (PRE) and the overload ... Post by: kaefol on Mar 4, 2018 All are correct
Title: Compare and contrast the concepts of progressive resistance exercise (PRE) and the overload ... Post by: amandagrace on Mar 4, 2018 Happy to help
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