Symmetry or Asymmetry of Lower Limb 3D-Mechanical Muscle Power in Female Athletes’ Gait

Document Type : Original research papers


1 Department of Physical Education and Sports Science, Islamic Azad University of Karaj Branch, Karaj, Iran

2 Department of Biomechanics and Sports Injuries, Faculty of Physical Education and Sport Science, Kharazmi University, Tehran, Iran

3 Computer Engineering Department, Shomal University, Amol, Iran


The present study aimed to determine the extent to which female athletes display asymmetrical or symmetry patterns in lower limb three-dimensional mechanical muscle power during gait. Thirty healthy female professional bodybuilders participated in his study. Their three-dimensional data of both lower extremities during walking was collected using a ten-camera Vicon motion capture system and two Kistler force plates. The peak mechanical muscle power of lower limbs in all three planes was calculated (P≤ 0.05). The results showed that except in the ankle joint, there were significant differences in third mechanical muscle power peaks of the knee and hip joints in sagittal plane (H3S, K3S), first and second mechanical muscle power peaks of knee joint in frontal plane (K1F, K2F), and second mechanical muscle power peak of hip joint in horizontal plane (H2T). In addition, the findings confirmed approximately 25% local asymmetry in the mechanical muscle power in the hip and knee joints between the right and left limbs.


Main Subjects

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