Using Long-Duration Static Stretch Training to Counteract Strength and Flexibility Deficits in Moderately Trained Participants.

Many sports injuries result in surgery and prolonged periods of immobilization, which may lead to significant atrophy accompanied by loss of maximal strength and range of motion and, therefore, a weak-leg/strong-leg ratio (as an imbalance index ∆ ) lower than 1. Consequently, there are common rehabilitation programs that aim to enhance maximal strength, muscle thickness and flexibility; however, the literature demonstrates existing strength imbalances after weeks of rehabilitation. Since no study has previously been conducted to investigate the effects of long-duration static stretch training to treat muscular imbalances, the present research aims to determine the possibility of counteracting imbalances in maximal strength and range of motion. Thirty-nine athletic participants with significant calf muscle imbalances in maximal strength and range of motion were divided into an intervention group (one-hour daily plantar flexors static stretching of the weaker leg for six weeks) and a control group to evaluate the effects on maximal strength and range of motion with extended and bent knee joint. Results show significant increases in maximal strength (d = 0.84–1.61, p < 0.001–0.005) and range of motion (d = 0.92–1.49, p < 0.001–0.002) following six weeks of static stretching. Group * time effects (p < 0.001–0.004, η² = 0.22–0.55) revealed ∆ changes in the intervention group from 0.87 to 1.03 for maximal strength and from 0.92 to 1.11 in range of motion. The results provide evidence for the use of six weeks of daily, one hour stretching to counteract muscular imbalances. Related research in clinical settings after surgery is suggested.

许多运动损伤导致手术和延长的固定时期，这可能会导致通过损失最大强度和运动范围而实现的显着萎缩，因此，弱腿/强腿比（作为不平衡指数∆）低于1.因此，有一些常见的康复计划旨在增强最大的强度，肌肉厚度和灵活性；由于以前没有进行研究来研究长期静态拉伸训练以治疗肌肉失衡的影响，因此本研究旨在确定在最大的强度和运动范围内抵消失衡的可能性。将最大强度和运动范围内的肌肉失衡分为干预组（每天一小时的底屈肌静态伸展较弱的腿静态伸展六周）和一个对照组评估对延伸和弯曲关节的最大运动范围的影响。 ，p <0.001–0.002）静态拉伸六周后。 1.03的最大强度和从0.92到1.11的运动范围。