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osteoporosis and resistance training

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  • osteoporosis and resistance training

    Hi,

    I am currently designing some resistance training programs for some
    clients who suffer from mild to moderate degrees of osteoporosis. I
    undertsnd that like muscle, bone tissue responds to the loads imposed
    on it by getting bigger (denser) and/or stronger. Do these "loads"
    have to be a compressive force applied through the bones eg during a
    squat the vertebrae is compressed by the weight of the barbell and
    upper body; or is it just a fact of the contracting muscles placing
    stress (primarily a tension force) on the bones comprising the
    articulating joint?

    Yesterday on a science chat show on a national radio station, some
    doctor (I think) rang in and said that compressive forces stimulate
    osteoblast activity and hence increase the laying down of new bone
    tissue, while tension forces will increase osteoclast activity and
    hence breakdown bone tissue.

    If these statements are correct, then exercises such as squats,
    pushups and bench presses would be advisable for osteoporosis
    sufferers due to the compressive loading of the bones, while chinups,
    lat pulldowns and seated rows would be inadvisable due to the tension
    forces through the bones.

    I would appreciate any comments on these statements, as well as any
    references or practical experience anyone has had in this area.

    Yours sincerely,

    Justin Keogh.


    __________________________________________________
    Justin Keogh BHMS (Hons)
    justin.keogh@nhs.gu.edu.au
    Griffith University, Gold Coast
    School of Exercise Science
    Room 3.32 NHS
    07 5594 8941 (W) 0419 714 921 (M)

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