<研究論文>前十字靱帯再建術後の筋力回復の検討

概要

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The purpose of this study was to examine the recovery of quadriceps and hamstrings strength after anterior cruciate ligament reconstraction using the patellar tendon autograft. 10 men and 5 women were examined. Muscle strength were measured by CYBEX 770-NORM isokinetic dynamometer at 6 and 12 months after ACL recostraction. The angular velocity was set at 60 (low), 180 (middle) and 300 (high) degrees/second. Peak torque and total work of quadriceps in the operated knee was significantly smaller than that in the uninjured knee for all angular velocity at 6 months. At 12 months, peak torque recovered significantly for all angular velocity, but the recovery was still not enough for the low angular velocity as compared to the uninjured knee. As for the total work, there was no notable difference at the low angular velocity between 6 and 12 months, and the recovery was insufficient. Peak torque of hamstrings had recovered adequately after 6 months for all angular velocity, and for the total work, the recovery was insufficient only at low angular velocity. After 12 months, peak torque and total work of hamstrings had recovered adequately. From this study, it could be considered that the recovery of hamstrings become satisfactory at 12 months after ACL reconstractio, while quadriceps shows the delay of recovery especially for the low angular velocity. Therefore it should be further training of quadriceps in consideration of low angular velocity.
1998-03-20