Lumbopelvic Control in Dynamic Tasks – The Relationship Between the Active Hip Abduction Test and Frontal Plane Kinematics

This study investigated the relationship between Active Hip Abduction (AHAbd) test performance and lumbopelvic control (LPC) in the frontal plane during a dynamic stair circuit in physically active adults. Thirty-four participants (23 males, 11 females) completed the AHAbd and a 15-minute fatiguing stair circuit. While no significant effects of age, sex, or AHAbd score were observed on LPC during stair ascent, significant interactions were found during stair descent, particularly among younger adults and females with poor AHAbd scores. The AHAbd test did not effectively identify LPC deficits in this active older adult population, suggesting that further research is needed in less active populations. These findings highlight the importance of maintaining physical activity to mitigate age-related declines in LPC and suggest that diverse populations should be studied to optimize physical activity recommendations across age groups.