论文信息 - Norm references are essential if therapists are to correctly identify individuals who have physical limitations.

Norm references are essential if therapists are to correctly identify individuals who have physical limitations.

Letter to the Editor-in-Chief of JOSPT regarding the April 2005 article “The Influence of Gender and Age on Hamstring Muscle Length in Healthy Adults” by Youdas et al. J Orthop Sports Phys Ther 2005;35(6):388. doi:10.2519/jospt.2005.35.6.388

Richard W. Bohannon

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