PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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isotonic contractions
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isometric contractions
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Either A or B
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None of the above
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Detailed explanation-1: -The energy demand was appreciably greater for isometric than for isotonic contraction, both during the increasing tension phase and during maintenance of constant tension.
Detailed explanation-2: -In a concentric contraction, the force generated by the muscle is less than the muscle’s maximum, and the muscle begins to shorten. This type of contraction is widely known as muscle contraction. It requires more energy compared to the other two types, but this contraction generates the least force.
Detailed explanation-3: -Muscles use ATP throughout an isometric contraction at a rate that depends on duration of stimulation, muscle type, temperature and muscle length.
Detailed explanation-4: -ATP. Adenosine triphosphate (ATP) is the source of energy for all muscle contractions.
Detailed explanation-5: -Muscles are stronger in eccentric contractions than in isometric and concentric contractions.