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Max Speed in Muscles

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  • Max Speed in Muscles

    Hi everybody,

    I'm a bit of an amateur as far as bio-mechanics is concerned so forgive
    me if this question is simple or obvious. Most of my study of this
    subjects comes directly from text books but this is a question (or
    series of questions) that I don't seem to find addressed.

    With concern to concentric contraction within a muscle, say the biceps
    for example, I'm interested to know at what stage within ROM does a
    muscle reach maximum speed? Does it simply continue to accelerate until
    it is inhibited and forced to decelerate by another part of the body, or
    does it accelerate until maximum contraction is achieved and then
    decelerate? Does maximum contraction equal the end of movement or simply
    the point where a muscle cannot continue to apply a force? Or, does a
    muscle reach maximum speed before it achieves maximum contraction
    perhaps because all the available fibres have been fired? If this is the
    case what happens next? Does it continue at that speed or begin to
    decelerate? If a muscle does reach maximum speed before it reaches
    maximum contraction how long would it take in the biceps for example? 30
    degrees, 60 degrees? How much does a preceding eccentric movement effect
    this process?
    Hey do I sound confused?!!
    Hope some of this is clear, I'm sure there is a simple answer to all
    this rambling.

    Thanks in advance,
    Lee Aylett.

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