School of Medical Technology, Xuzhou Medical University, Xuzhou, Jiangsu, China (mainland).
Department of Treatment, The Second Rehabilitation Hospital of Shanghai, Shanghai, China (mainland).
Med Sci Monit. 2019 Mar 15;25:1945-1951. doi: 10.12659/MSM.912720.
BACKGROUND This study investigated how whole-body vibration (WBV), exercise, and their interactions influence core muscle activity in healthy young adults. MATERIAL AND METHODS Twenty-three healthy young adults (8 males and 15 females; age: 21.87±2.33 years) participated in the study. The activities of muscle multifidi (MM), rectus abdominis muscle (RM), erector spinae (ES), abdominis obliquus externus (AOE), and abdominis obliquus internus (AOI) were measured through surface electromyography (sEMG) while participants were performing 4 different exercise forms under 3 WBV conditions (condition 1: 5 Hz, 2 mm; condition 2: 10 Hz, 2 mm; and condition 3: 15 Hz, 2 mm) and a no-WBV condition in single experimental sessions. RESULTS The WBV frequency of 15 Hz is the best vibration stimulation for core muscles in all of the exercises (P<0.05). Single bridge is a better exercise for RM and AOE (P<0.05) compared with other exercises, and crunches is the best exercise for MM, AOI, and ES (P<0.05). Significant interaction effect was observed in different frequencies and exercises (P>0.05) except for AOI (F=0.990, P=0.378). CONCLUSIONS High vibration frequencies can lead to enhanced exercise benefits within an appropriate frequency range, and different exercises have diverse effects on various muscles. Single bridge and crunches are appropriate exercise forms for lumbar-abdominal muscles.
本研究旨在探讨全身振动（WBV）、运动及其相互作用对健康年轻成年人核心肌群活动的影响。
23 名健康年轻成年人（8 名男性和 15 名女性；年龄：21.87±2.33 岁）参与了本研究。参与者在 3 种 WBV 条件（条件 1：5 Hz，2 mm；条件 2：10 Hz，2 mm；条件 3：15 Hz，2 mm）和无 WBV 条件下进行 4 种不同运动形式时，通过表面肌电图（sEMG）测量多裂肌（MM）、腹直肌（RM）、竖脊肌（ES）、腹外斜肌（AOE）和腹内斜肌（AOI）的肌肉活动。
在所有运动中，15 Hz 的 WBV 频率对核心肌群的振动刺激最佳（P<0.05）。与其他运动相比，单桥运动更有利于 RM 和 AOE（P<0.05），而仰卧起坐是 MM、AOI 和 ES 最佳的运动（P<0.05）。在不同的频率和运动中观察到显著的交互效应（P>0.05），除了 AOI（F=0.990，P=0.378）。
在适当的频率范围内，高振动频率可以带来增强的运动益处，不同的运动对不同的肌肉有不同的影响。单桥和仰卧起坐是锻炼腰腹肌的合适运动形式。
