Eccentric training, such as Nordic hamstring exercise (NHE) training, is commonly used as a preventive measure for hamstring strains. Eccentric training is believed to induce lengthening of muscle fascicles and to be associated with the addition of sarcomeres in series within muscle fibers. However, the difficulty in measuring sarcomere adaptation in human muscles has severely limited information about the precise mechanisms of adaptation. This study addressed this limitation by measuring the multiscale hamstring muscle adaptations in response to 9 weeks of NHE training and 3 weeks of detraining.

中文翻译：

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离心训练 9 周后的多尺度腘绳肌适应


离心训练，例如北欧腘绳肌运动 （NHE） 训练，通常用作腘绳肌拉伤的预防措施。离心训练被认为会引起肌肉束的延长，并与肌肉纤维内串联的肌节有关。然而，测量人体肌肉肌节适应的困难严重限制了有关适应确切机制的信息。本研究通过测量响应 9 周 NHE 训练和 3 周停止训练的多尺度腘绳肌适应来解决这一限制。