PDF(Pubmed)
Abstract：
OBJECTIVE: Stretch-induced force deficit suggests an acute stretch-specific strength capacity loss, which is commonly attributed to EMG reductions. Since those deficits could also be attributed to general fatigue induced by overloading the muscle, this study aimed to compare stretching with an exhausting calf raise programme to compare strength and stretching responses.
METHODS: This study included 16 participants with different, high-duration calf muscle stretching effects (10, 20, 30 min of stretching) with resistance training (RT) (3 × 12 repetitions) performed until muscle failure, by using a cross-over study design with pre-post comparisons. Strength was tested via isometric plantar flexor diagnostics, while flexibility was assessed using the knee-to-wall test (KtW) and an isolated goniometer test.
RESULTS: Using a three-way ANOVA, RT strength decreases were greater compared to 10 and 20 min of stretching (p = 0.01-0.02), but similar to those of 30 min of stretching. ROM in the KtW showed no specific stretch-induced increases, while only the stretching conditions enhanced isolated tested ROM (p < 0.001-0.008). No RT-related isolated ROM increases were observed.
CONCLUSIONS: The results showed both interventions had similar effects on strength and ROM in the calf muscles. More holistic explanatory approaches such as fatigue and warm-up are discussed in the manuscript and call for further research.
METHODS: This study included 16 participants with different, high-duration calf muscle stretching effects (10, 20, 30 min of stretching) with resistance training (RT) (3 × 12 repetitions) performed until muscle failure, by using a cross-over study design with pre-post comparisons. Strength was tested via isometric plantar flexor diagnostics, while flexibility was assessed using the knee-to-wall test (KtW) and an isolated goniometer test.
RESULTS: Using a three-way ANOVA, RT strength decreases were greater compared to 10 and 20 min of stretching (p = 0.01-0.02), but similar to those of 30 min of stretching. ROM in the KtW showed no specific stretch-induced increases, while only the stretching conditions enhanced isolated tested ROM (p < 0.001-0.008). No RT-related isolated ROM increases were observed.
CONCLUSIONS: The results showed both interventions had similar effects on strength and ROM in the calf muscles. More holistic explanatory approaches such as fatigue and warm-up are discussed in the manuscript and call for further research.
摘要：
目标：拉伸引起的力不足表明急性拉伸强度能力丧失，这通常归因于肌电图减少。由于这些缺陷也可能归因于肌肉过载引起的一般疲劳，这项研究的目的是比较拉伸与疲惫的小腿饲养计划，以比较力量和拉伸反应。
方法：这项研究包括16名参与者，长时间的小腿肌肉拉伸效果（10，20，30分钟的拉伸）与阻力训练（RT）（3×12重复）进行，直到肌肉衰竭，通过使用交叉研究设计和事后比较。通过等距足底屈肌诊断测试了力量，而使用膝壁试验（KtW）和独立测角仪试验评估柔韧性。
结果：使用三因素方差分析，与拉伸10和20分钟相比，RT强度降低更大（p=0.01-0.02），但类似于30分钟的拉伸。KtW中的ROM没有显示特定的拉伸诱导的增加，而仅拉伸条件增强了分离的测试ROM(p<0.001-0.008)。没有观察到与RT相关的孤立的ROM增加。
结论：结果显示两种干预措施对小腿肌肉的力量和ROM具有相似的影响。手稿中讨论了更全面的解释性方法，例如疲劳和热身，并要求进一步研究。
方法：这项研究包括16名参与者，长时间的小腿肌肉拉伸效果（10，20，30分钟的拉伸）与阻力训练（RT）（3×12重复）进行，直到肌肉衰竭，通过使用交叉研究设计和事后比较。通过等距足底屈肌诊断测试了力量，而使用膝壁试验（KtW）和独立测角仪试验评估柔韧性。
结果：使用三因素方差分析，与拉伸10和20分钟相比，RT强度降低更大（p=0.01-0.02），但类似于30分钟的拉伸。KtW中的ROM没有显示特定的拉伸诱导的增加，而仅拉伸条件增强了分离的测试ROM(p<0.001-0.008)。没有观察到与RT相关的孤立的ROM增加。
结论：结果显示两种干预措施对小腿肌肉的力量和ROM具有相似的影响。手稿中讨论了更全面的解释性方法，例如疲劳和热身，并要求进一步研究。
