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pec tear during a 10RM bench press

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  • pec tear during a 10RM bench press

    I agree with Greg Hart on two counts: that a pec tear in a 10RM
    exercise is extremely unlikey, and that if one does occur, the end of
    the set would provide a better opportunity than the beginning.

    Statistically speaking, all factors held constant, the final rep
    would be the most likely to result in a muscle tear. If the
    probability of a tear on any given rep is (I'm making this number up
    by way of example) 0.0005, then the probability of a tear on the 5th
    rep would be 0.0025, and the 10th rep 0.005, etc. However, most of
    us would agree that "all other factors" are rarely held constant.

    The most likely scenario for a pec tear in a 10RM exercise would be
    if there were an underlying muscle pathology, in which the tear would
    probably occur either randomly or on the first rep. (This agrees
    with the earlier posting, but for a different reason; if there is
    an underlying pathology, a warm-up would not be beneficial).

    If anyone can supply me with the actual probability of a muscle tear
    of the pec while performing a bench press exercise, I will be glad to
    write a Monte Carlo simulation to give a scenario on the likelyhood
    of a tear on any given rep.

    J. B. Boren, Ph. D.
    Director of Sports Medicine and Exercise Science
    Missouri Baptist College
    St. Louis
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