HAMSTRINGS - AN ANTERIOR CRUCIATE LIGAMENT PROTAGONIST - AN INVITRO STUDY

被引：261

作者：

MORE, RC ^{[1
]}

KARRAS, BT ^{[1
]}

NEIMAN, R ^{[1
]}

FRITSCHY, D ^{[1
]}

WOO, SLY ^{[1
]}

DANIEL, DM ^{[1
]}

机构：

[1] UNIV CALIF SAN DIEGO,DIV ORTHOPED SURG,LA JOLLA,CA 92093

来源：

AMERICAN JOURNAL OF SPORTS MEDICINE | 1993年 / 21卷 / 02期

关键词：

D O I：

10.1177/036354659302100212

中图分类号：

R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];

学科分类号：

摘要：

A cadaveric model that incorporated quadriceps and hamstrings muscle loads was developed to simulate the squat exercise. The addition of hamstrings load affected knee kinematics in two ways. First, anterior tibial translation during flexion (''femoral roll-back'') was significantly reduced (P = 0.003) and second, internal tibial rotation during flexion was reduced (P = 0.008). However, quadriceps force was unaffected by the addition of hamstrings load. Thus, it seems likely that hamstrings muscle activity that has been observed in vivo during a squat probably functions synergistically with the anterior cruciate ligament to provide anterior knee stability. After the ACL was sectioned, anterior tibial translation was significantly increased during the squat (P = 0.04). The anterior cruciate ligament was then reconstructed using a graft instrumented with a load cell. During passive motion, maximal graft tension was at full extension. During simulated squat exercise, the addition of hamstrings caused a significant decrease in graft load (P = 0.006). During the squat, maximal graft tension was at full extension, and was equal to the graft tension at full passive extension. Thus, the squat exercise may be useful in the early stages of anterior cruciate ligament rehabilitation.

引用

页码：231 / 237

页数：7

共 25 条

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