objectives: skeletal-muscular disorders affect the biomechanics of the human body, especially the lower extremity, with a negative effect on the biomechanics of exercise. the main aim of this study was to evaluate the effect of fatigue on the kinematic variables of knee joints during countermovement jumps in female students of physical education with valgus knee deformity.  methods: fifteen sub...

introduction: in this research the effects of ultrasound therapy with 1mhz frequency were studied on bone regeneration by descriptive histologic and mean descriptive rank method. material and methods: a total of 40 white male dutch-poland rabbits underwent dental hole partial osteotomy (dhpo) of the tibia bone in both lower extremities under general anesthesia and sterile conditions. the right ...