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.
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。