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Cheng Cao
02-23-1997, 11:57 PM
ORIGINAL MESSAGE TO BIOMECH-L

Currently I am conducting a project to measure hip flexion strength. In
my design, hip flexion torque will be measured at a seated posture. I am
interested to know if anybody know any related literature regarding the
effects of posture on hip flexion torque? Thanks in advance. I will
post a summary of all responses.

SUMMARY

Isometric hip flexion torque is significantly affected by hip and knee
angles. As indicated by Inman et al. (1981), hip flexion torque is twice
as much when hip flexion is about 30 degrees comparing to that of 90-degree
hip flexion.

REFERENCES

Neimeth G. et al. (1983). Influence of kene flexion on isometric hip
extensor strength. Scandinavian Jounral of Rehabilitation Medicine, 15,
97-101.
(provided by Dr. Luis Fernando COSTA RICA)

Waters RL et al. (1974). The relative strength of the hamstrings during
hip extension. The Journal of Bone & Joint Surgery, 56-A(8), 1592-1597.
(provided by Dr. Luis Fernando COSTA RICA)

Delp SL. (1990). Surgery simulation: a computer graphics system to
analyze and design musculoskeletal reconstruction of the lower limb. PhD
dissertation, Stanford University.
(provided by Dr. Arthur Kuo, University of Michigan, USA)

Inman VT et al. (1981). Human Walking. Baltimore, MD: William & Wilkins.
(Chapter 5, listed in Delp dissertation)