Kinetic and Electromyographic Analyses of Sit-to-Stand Motion in Patients with Proximal Femoral Fracture :

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  • 大腿骨近位部骨折患者における立ち上がり動作の運動力学的・筋電図学的分析
  • -動作時疼痛の有無による比較-
  • Comparison of Patients with Pain and without Pain

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Objective: The purpose of this study is to make kinetic and electromyographic analyses on sit-to-stand motion of patients with proximal femoral fracture and to reveal differences in motion patterns and muscular activities during motion according to presence or absence of pain on motion. Method: Twenty one patients with proximal femoral fracture who had maintained cognitive function and had no serious past medical history were included in the study. Sit-to-stand motion without upper limb support from a chair as high as 120% of the length of lower limbs was studied using 3D motion analysis system and surface electromyogram. Subjects were classified into groups with and without pain according to presence or absence of pain during motion, and results of motion analyses were compared between the groups. Result: Pain was detected mainly in quadriceps muscle. Range of hip motion and hip extension moment were significantly small in patients with pain. Knee extension moment was significantly large in patients with pain. The ratio of muscular activities for the affected versus unaffected sides was significantly large in vastus lateralis muscle of patients with pain. Conclusion: Comprehension by knee joint function for decreased hip joint function was observed in patients experiencing pain during motion, suggesting involvement of compensatory movement in muscular pain development during the recovery phase.

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