One of the Proposed Mechanisms to Explain the Positive Impact

question 18

Multiple Choice

One of the proposed mechanisms to explain the positive impact of postactivation potential on muscle performance is that low intensity muscle contractions results in phosphorylation of myosin light chains (i.e. ,proteins located at the base of the myosin cross-bridge) .This increased phosphorylation can increase muscle force production by

• A)increasing the muscle's sensitivity to calcium.
• B)increasing the calcium release from the sarcoplasmic reticulum.
• C)promoting increased ATP availability in the muscle.
• D)none of the above answers are correct

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