Change in muscle thickness during exercise to stabilize the hip joint against a load in the ventral direction of the femoral head

  • Miyachi R
  • Mori K
  • Yonekura S
  • et al.
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Abstract

[Purpose] This study aimed to measure the thickness of the muscles located on the ventral side of the hip joint and to identify the muscles involved in exercise against the load that results in femoral head translation in the ventral direction, which can be used as an index of exercise performance for the prevention and improvement of hip joint disease caused by femoral head translation. [Participants and Methods] The participants were 10 healthy young males. During the measurement task, we asked them to hold a 10 kgf load in the ventral direction to the femoral head in the supine position. We measured the thickness of the gluteus minimus, gluteus medius, tensor fascia latae, and iliopsoas both at rest and during exercise using ultrasonography. [Results] We compared muscle thicknesses at rest and during exercise and found that only the gluteus minimus had significantly lower values during exercise. We also compared the rate of change in muscle thickness and found that the gluteus minimus exhibited significantly higher values than those of the gluteus medius and tensor fasciae latae. [Conclusion] Our study indicates that the gluteus minimus is more involved than the gluteus medius, tensor fasciae latae, and iliopsoas in the exercise for the ventral displacement of the femoral head.

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Miyachi, R., Mori, K., Yonekura, S., Deguchi, M., Nami, T., Morioka, T., & Miyazaki, J. (2019). Change in muscle thickness during exercise to stabilize the hip joint against a load in the ventral direction of the femoral head. Journal of Physical Therapy Science, 31(11), 935–938. https://doi.org/10.1589/jpts.31.935

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