Primary functions of the quadratus femoris and obturator externus muscles indicated from lengths and moment arms measured in mobilized cadavers.

@article{Vaarbakken2015PrimaryFO,
  title={Primary functions of the quadratus femoris and obturator externus muscles indicated from lengths and moment arms measured in mobilized cadavers.},
  author={Kjartan Vaarbakken and Harald Steen and Gunnar Samuelsen and Hans A. Dahl and Trygve B. Leergaard and Britt Stuge},
  journal={Clinical biomechanics},
  year={2015},
  volume={30 3},
  pages={
          231-7
        }
}
BACKGROUND The small muscles of the pelvis and hip are often implicated in painful conditions. Although the quadratus femoris and obturator externus are usually described as external rotators of the hip, little is known about how they change their lengths and moment arms during human movement. Therefore, more precise measurements defining the positions and directions for their maximal strength and stretch are needed to better describe their functions and guide the clinical approach to pain… Expand
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