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PHYS THER
Vol. 77, No. 4, April 1997, pp. 439-440
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Letters and Responses

Lumbar Lordosis and Pelvic Inclination

This excerpt was created in the absence of an abstract.

To the Editor:

I applaud Youdas et al (Lumbar Lordosis and Pelvic Inclination of Asymptomatic Adults, October 1996) on their research examining the presumed relationship between muscle length, muscle strength, and lumbopelvic alignment. Studies of this type, which question the basis of common clinical practice, are exceedingly important in advancing our knowledge base. However, I would like to bring to the attention of your readers several areas of concern regarding some of the measures reported in the study. These considerations appear to call into question the validity of some of the measures.

My first concern is with the reported measure of "pelvic inclination." From the description of the technique and accompanying Figure 1, it appears that the authors are measuring the angle between the posterior surface of the sacrum and the true vertical. Ostensibly, the authors assume the angle somehow represents the inclination of the pelvis....


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Related Article

Lumbar Lordosis and Pelvic Inclination of Asymptomatic Adults
James W Youdas, Tom R Garrett, Scott Harmsen, Vera J Suman, and James R Carey
Physical Therapy 1996 76: 1066-1081. [Abstract] [PDF]





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Copyright © 1997 by the American Physical Therapy Association.