Objectives

To compare the effects of conventional (constant load) eccentric training and isokinetic eccentric training on quadriceps muscle mass, strength and functionality of recreational athletes following partial meniscectomy.

Design

Randomized controlled trial.

Setting

XXXX, Brazil.

Participants

32 recreational male athletes (∼27 years old) who underwent partial meniscectomy performed a 6-week quadriceps strength training program in one of the experimental groups: conventional group (CG) or icokinetic group (IG).

Main outcome measures

Quadriceps muscle mass, strength, and patients’ objective and self-reported function.

Results

Both groups enhanced muscle mass, strength and functionality outcomes. The IG presented higher increases than CG for muscle mass (ES = 0.99–1.41), strength (ES = 1.48–2.35), and Lysholm score (ES = 1.0). The magnitude-based inference supports that results ‘very likely’ or ‘almost certainly’ favour IG compared to CG for all outcomes, except for the single leg hop test (i.e., between-group similar change).

Conclusion

After partial meniscectomy, isokinetic eccentric training is more effective than conventional eccentric training to restore quadriceps muscle mass, strength, and functional capacity.

中文翻译：

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在部分半月板切除术后的股四头肌康复中，等速偏心训练比恒负荷偏心训练更有效：一项随机临床试验。

目标

比较常规（恒定负荷）偏心训练和等速偏心训练对半月板切除术后消遣性四头肌肌肉质量，力量和功能的影响。

设计

随机对照试验。

设置

XXXX，巴西。

参加者

32个娱乐性男运动员（〜27岁）接受了半月板切除术，他们在以下一组实验组中进行了为期6周的股四头肌力量训练计划：常规组（CG）或运动动力学组（IG）。

主要观察指标

股四头肌的肌肉质量，力量以及患者的客观和自我报告的功能。

结果

两组均增强了肌肉质量，力量和功能结局。在肌肉质量（ES = 0.99-1.41），力量（ES = 1.48-2.35）和Lysholm评分（ES = 1.0）方面，IG的增幅高于CG。基于幅度的推论支持所有结果（相比单腿跳跃测试（即组间相似变化）），与CG相比，结果“非常可能”或“几乎肯定”有利于IG。

结论

半月板切除术后，等速离心训练比常规离心训练更有效，以恢复股四头肌的肌肉质量，力量和功能。