Fig. 1From: Trunk muscle activation patterns during active hip abduction test during remission from recurrent low back pain: an observational studyActive hip abductiontest used in this study.When the lamp was turned on, participants had to raise the legas fast as possible until it touched the indicator bar while minimising movementof pelvis and trunk and keeping their knee straight and the leg in line withthe trunk. A: Starting position. B: Ending positionBack to article page