Hwang Young-In, Kim Jwa-Jun, Park Du-Jin
Department of Physical Therapy, Dong-A University Hospital, Busan, Korea.
Department of Physical Therapy, Choonhae College of Health Sciences, Ulsan, Korea.
J Exerc Rehabil. 2014 Apr 30;10(2):100-5. doi: 10.12965/jer.140096. eCollection 2014 Apr.
The objective of this study was to determine appropriate knee angles for the abdominal drawing-in maneuver (ADIM) through evaluation of changes in contraction ratios of the abdominal muscles and activity of quadriceps muscle in relation to changes in knee angles occurring while the ADIM is performed in the wall support standing (WSS). 20 subjects performed the ADIM at different knee angles (0°, 20°, 40°, 60°) in random order, standing at a point 6 inches away from the wall with the spine maintained in the neutral position. The WSS with knee flexion at 20° showed significantly higher preferential contraction ratio (PCR) of transversus abdominis (TrA) compared to other positions (0°, 40°, 60°). Therefore, performing the ADIM in the WSS with knee flexion at 20° appears to be the most appropriate position for TrA PCR.
本研究的目的是，通过评估在靠墙支撑站立（WSS）姿势下进行收腹动作（ADIM）时，随着膝关节角度变化，腹部肌肉收缩率和股四头肌活动的变化，来确定ADIM的合适膝关节角度。20名受试者以随机顺序在不同膝关节角度（0°、20°、40°、60°）下进行ADIM，站在距离墙壁6英寸处，脊柱保持在中立位置。与其他位置（0°、40°、60°）相比，膝关节屈曲20°的WSS姿势下，腹横肌（TrA）的优先收缩率（PCR）显著更高。因此，在膝关节屈曲20°的WSS姿势下进行ADIM似乎是TrA PCR的最合适姿势。
