Montana Tech University of Montana Butte, Montana West Side Judo & Vale Tudo Club Butte, Montana John Amtmann is a professor of Applied Health Sciences at Montana Tech of the University of Montana in Butte, Montana. Steve Berry is a strength and conditioning coach at the West Side Judo & Vale Tudo Club in Butte, Montana.
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Amtmann et al. (2003) studied this question.
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