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首页> 外文期刊>The journal of orthopaedic and sports physical therapy >Safety, feasibility, and efficacy of negative work exercise via eccentric muscle activity following anterior cruciate ligament reconstruction.
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Safety, feasibility, and efficacy of negative work exercise via eccentric muscle activity following anterior cruciate ligament reconstruction.

机译：前十字韧带重建后通过偏心肌肉活动进行负性工作锻炼的安全性，可行性和功效。

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STUDY DESIGN: Randomized, matched design. BACKGROUND: Optimal rehabilitation following anterior cruciate ligament reconstruction (ACL-R) requires safe and effective interventions. Negative work exercise (via eccentric muscle activity) has the potential to be highly effective at producing large quadriceps size and strength gains early after ACL-R. The purpose of this investigation was to evaluate the short-term safety and efficacy of adding a progressive negative work exercise program via eccentric (ECC) ergometry early after ACL-R. METHODS AND MEASURES: Beginning 3 weeks after ACL-R, 32 participants were randomly assigned into either a 12-week traditional (TRAD) or ECC exercise program. Safety was assessed by measuring knee pain, thigh pain, knee effusion, and knee stability prior to surgery and at 3,15, and 26 weeks after surgery. Efficacy was assessed by measuring negative work output during the 12-week training program and by measuring functional ability (ie, quadriceps peak torque, hopping distance, self-reported functional ability and activity level scales) prior to surgery and 26 weeks after ACL-R. RESULTS: There were no significant differences between groups in measures of knee and thigh pain, effusion, or stability at any period after surgery. Negative work output increased systematically throughout training, while knee and thigh pain remained at relatively low levels. A significant group-by-time interaction was observed for quadriceps peak torque, hopping distance, and activity level (P< or =.02). Quadriceps strength and hopping distance of the involved limb improved by a significantly greater amount in the ECC group compared to the TRAD group (P<.01). Activity level decreased to a lesser extent in the ECC group compared to the TRAD group (P =.02). CONCLUSIONS: Negative work via an ECC intervention was implemented safely after ACL-R. The addition of negative work exercise also induced superior short-term results in strength, performance, and activity level after surgery.
机译：研究设计：随机，匹配的设计。背景：前十字韧带重建（ACL-R）后的最佳康复需要安全有效的干预措施。负运动锻炼（通过偏心肌肉活动）有可能在ACL-R术后早期有效地产生较大的股四头肌大小和增加力量。这项研究的目的是评估在ACL-R早期通过偏心（ECC）测功增加渐进式负向锻炼计划的短期安全性和有效性。方法和措施：从ACL-R后3周开始，将32名参与者随机分为12周的传统（TRAD）或ECC运动计划。通过在手术前以及手术后3,15和26周测量膝盖疼痛，大腿疼痛，膝盖积液和膝盖稳定性来评估安全性。在手术前和ACL-R术后26周，通过测量12周培训计划期间的负功输出并测量功能能力（即股四头肌峰值扭矩，跳跃距离，自我报告的功能能力和活动水平量表）来评估疗效。结果：在手术后的任何时期，两组之间的膝盖和大腿疼痛，积液或稳定性的测量指标之间均无显着差异。在整个训练过程中，负功输出有系统地增加，而膝盖和大腿的疼痛保持在相对较低的水平。股四头肌峰值扭矩，跳跃距离和活动水平观察到了显着的逐次交互作用（P <或= .02）。与TRAD组相比，ECC组的股四头肌力量和跳跃距离的改善幅度更大（P <.01）。与TRAD组相比，ECC组的活动水平降低的程度较小（P = .02）。结论：在ACL-R之后，通过ECC干预进行的负面工作得以安全实施。负性工作锻炼的加入还可以在手术后在强度，性能和活动水平方面带来优异的短期效果。

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