Shin Mal-Soon, Sung Yun-Hee
1Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea; and 2Department of Physical Therapy, College of Natural Science, Kyungnam University, Changwon-si, Korea.
J Strength Cond Res. 2015 Aug;29(8):2255-60. doi: 10.1519/JSC.0000000000000688.
Exercise-induced muscle damage (EIMD), which is commonly associated with eccentric exercise, unaccustomed exercise, and resistance training, may lead to delayed onset muscle soreness, swelling, decreased muscle strength, and range of motion. Many researchers have evaluated various interventions to treat the signs and symptoms of EIMD. However, the effects of massage after EIMD are unclear. Here, we investigated the effect of massage on muscle strength and proprioception after EIMD. All subjects randomly were divided into an EIMD-treated control group (n = 10) and a massage-treated after EIMD experimental group (n = 11). Exercise-induced muscle damage was induced by repeated exercise. Massage treatment was provided by physiotherapist for 15 minutes. It consists of light stroking, milking, friction, and skin rolling. Lactate was evaluated by Lactate Pro analyzer in pre- and postexercise. Surface electromyography (muscle activity) and sonography (muscle thickness) were used to confirm the muscular characteristics. Proprioception was investigated by dual inclinometer. As a result, massage treatment on the gastrocnemius after EIMD increased activation of the medial gastrocnemius during contraction (p ≤ 0.05). In the lateral and medial gastrocnemius, the θs, which is the angle between muscle fibers and superficial aponeurosis, showed a significant change (p ≤ 0.05). However, there are no differences in the θd, which is the angle between muscle fibers and deep aponeurosis. We also found that proprioceptive acuity in the ankle joint was significantly greater in the massage-treated experimental group compared with that in the control group (p ≤ 0.05). These findings suggest that massage of the gastrocnemius after EIMD can improve muscle strength and proprioception by influencing the superficial layer of the gastrocnemius.
运动诱导的肌肉损伤（EIMD）通常与离心运动、不习惯的运动和阻力训练有关，可能导致延迟性肌肉酸痛、肿胀、肌肉力量下降和活动范围受限。许多研究人员评估了各种干预措施来治疗EIMD的体征和症状。然而，EIMD后按摩的效果尚不清楚。在此，我们研究了EIMD后按摩对肌肉力量和本体感觉的影响。所有受试者随机分为EIMD治疗对照组（n = 10）和EIMD后按摩治疗实验组（n = 11）。通过重复运动诱导运动诱导的肌肉损伤。由物理治疗师提供15分钟的按摩治疗。它包括轻拂、挤奶、摩擦和皮肤滚动。在运动前和运动后通过乳酸分析仪评估乳酸。使用表面肌电图（肌肉活动）和超声检查（肌肉厚度）来确认肌肉特征。通过双倾斜仪研究本体感觉。结果，EIMD后对腓肠肌进行按摩治疗增加了收缩期间内侧腓肠肌的激活（p≤0.05）。在外侧和内侧腓肠肌中，肌肉纤维与浅筋膜之间的角度θs显示出显著变化（p≤0.05）。然而，肌肉纤维与深筋膜之间的角度θd没有差异。我们还发现，与对照组相比，按摩治疗的实验组踝关节的本体感觉敏锐度显著更高（p≤0.05）。这些发现表明，EIMD后对腓肠肌进行按摩可以通过影响腓肠肌的表层来改善肌肉力量和本体感觉。
