Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Question
Q- Why is it recommended to spend more time performing the eccentric phase of contraction rather than the concentric phase of contraction? (A) Because muscle damage is associated with the concentric phase of contraction, time spent in the eccentric phase reduces potential muscle soreness. (B) The eccentric phase of a contraction focuses upon movement control and deceleration at the joint to help protect the joint from possible injury. (C) Because muscle is 40-to-60% stronger during eccentric contractions, increasing time during this phase elevates IGF-1 levels immediately following the training. (D) The muscle is 20-to-40% weaker in the eccentric phase of contraction, therefore by extending the time under tension, it increases muscle overload.
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Transcribed Image Text:Q- Why is it recommended to spend more time performing the eccentric phase of contraction rather than the concentric phase of contraction? (A) Because muscle damage is associated with the concentric phase of contraction, time spent in the eccentric phase reduces potential muscle soreness. (B) The eccentric phase of a contraction focuses upon movement control and deceleration at the joint to help protect the joint from possible injury. (C) Because muscle is 40-to-60% stronger during eccentric contractions, increasing time during this phase elevates IGF-1 levels immediately following the training. (D) The muscle is 20-to-40% weaker in the eccentric phase of contraction, therefore by extending the time under tension, it increases muscle overload.
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