Contreras Bret, Vigotsky Andrew D, Schoenfeld Brad J, Beardsley Chris, Cronin John
Auckland University of Technology, Sport Performance Research Institute New Zealand , Auckland , New Zealand.
Kinesiology Program, Arizona State University , Phoenix, AZ , USA.
PeerJ. 2015 Sep 22;3:e1261. doi: 10.7717/peerj.1261. eCollection 2015.
Background. The purpose of this study was to compare the peak electromyography (EMG) of the most commonly-used position in the literature, the prone bent-leg (90°) hip extension against manual resistance applied to the distal thigh (PRONE), to a novel position, the standing glute squeeze (SQUEEZE). Methods. Surface EMG electrodes were placed on the upper and lower gluteus maximus of thirteen recreationally active females (age = 28.9 years; height = 164 cm; body mass = 58.2 kg), before three maximum voluntary isometric contraction (MVIC) trials for each position were obtained in a randomized, counterbalanced fashion. Results. No statistically significant (p < 0.05) differences were observed between PRONE (upper: 91.94%; lower: 94.52%) and SQUEEZE (upper: 92.04%; lower: 85.12%) for both the upper and lower gluteus maximus. Neither the PRONE nor SQUEEZE was more effective between all subjects. Conclusions. In agreement with other studies, no single testing position is ideal for every participant. Therefore, it is recommended that investigators employ multiple MVIC positions, when possible, to ensure accuracy. Future research should investigate a variety of gluteus maximus MVIC positions in heterogeneous samples.
背景。本研究的目的是比较文献中最常用的姿势——俯卧屈膝（90°）髋关节伸展对抗施加于大腿远端的手动阻力（PRONE），与一种新姿势——站立臀肌收缩（SQUEEZE）的肌电图（EMG）峰值。方法。在以随机、平衡的方式对13名有运动习惯的女性（年龄 = 28.9岁；身高 = 164厘米；体重 = 58.2千克）进行每个姿势的三次最大自主等长收缩（MVIC）试验之前，将表面肌电图电极放置在臀大肌的上部和下部。结果。对于臀大肌的上部和下部，PRONE（上部：91.94%；下部：94.52%）和SQUEEZE（上部：92.04%；下部：85.12%）之间未观察到统计学显著差异（p < 0.05）。在所有受试者中，PRONE和SQUEEZE都不是更有效的。结论。与其他研究一致，没有单一的测试姿势对每个参与者都是理想的。因此，建议研究人员尽可能采用多个MVIC姿势以确保准确性。未来的研究应该在异质样本中研究各种臀大肌MVIC姿势。
