尽管缺乏对偏心运动后(EE后)的影响的研究,但撞击按摩(PM)是一种新兴的康复治疗方法。这项研究调查了PM治疗的效果(立即,EE后24、48和72小时)在最大等距扭矩(MIT)上,运动范围(ROM),以及EE后24-72小时非优势臂肱二头肌酸痛的11点数字评定量表(NRS)。十七个未经训练,大学年龄的受试者用非优势臂进行了60次偏心肘部屈曲动作。九人下午1分钟,而八个安静地休息(控制[CON])。为了,NRS,ROM,和MIT(相对于体重)在EE后24、48和72小时收集偏心运动前(EE前)和治疗后(AT)。还在治疗前(BT)收集NRS。在MIT期间收集肌电图(EMG)和肌电图(MMG)幅度,并将其标准化为EE前。麻省理工学院没有互动,EMG,或MMG,但是ROM和NRS存在相互作用。对于ROM,PM组比CON24-72h值高6-8°,更快地返回到EE前(PM:48小时,CON:72h),并在72h时超过其pre-EE约4°。组的NRS值在24-72小时之间没有差异;然而,PM小组在每次访问中将NRS从BT降低到AT,每次访问约1点,这导致它们在24-72小时比CON低2-3点。此外,PM组比CON更快地将NRS返回到EE之前(PM:BT72小时,CON:never).总之,PM治疗可以改善ROM,而不会影响EE后24-72小时的等距力量或肌肉激活。尽管PM治疗直到72小时都没有增强延迟发作的肌肉酸痛的恢复,他们一贯立即提供,EE后使用24-72小时时的临时救济。
Percussive massage (PM) is an emerging recovery treatment despite the lack of research on its effects post-eccentric exercise (post-EE). This study investigated the effects of PM treatments (immediately, 24, 48, and 72 h post-EE) on the maximal isometric torque (MIT), range of motion (ROM), and an 11-point numerical rating scale (NRS) of soreness of the nondominant arm\'s biceps brachii from 24-72 h post-EE. Seventeen untrained, college-aged subjects performed 60 eccentric elbow flexion actions with their nondominant arms. Nine received 1 minute of PM, versus eight who rested quietly (control [CON]). In order, NRS, ROM, and MIT (relative to body mass) were collected pre-eccentric exercise (pre-EE) and after treatment (AT) at 24, 48, and 72 h post-EE. NRS was also collected before treatment (BT). Electromyographic (EMG) and mechanomyographic (MMG) amplitudes were collected during the MIT and normalized to pre-EE. There were no interactions for MIT, EMG, or MMG, but there were interactions for ROM and NRS. For ROM, the PM group had higher values than the CON 24-72 h by ~6-8°, a faster return to pre-EE (PM: 48 h, CON: 72 h), and exceeded their pre-EE at 72 h by ~4°. The groups\' NRS values did not differ BT 24-72 h; however, the PM group lowered their NRS from BT to AT within every visit by ~1 point per visit, which resulted in them having lower values than the CON from 24-72 h by ~2-3 points. Additionally, the PM group returned their NRS to pre-EE faster than the CON (PM: BT 72 h, CON: never). In conclusion, PM treatments may improve ROM without affecting isometric strength or muscle activation 24-72 h post-EE. Although the PM treatments did not enhance the recovery from delayed onset muscle soreness until 72 h, they consistently provided immediate, temporary relief when used 24-72 h post-EE.