Effectiveness of Abdominal and Gluteus Medius Training in Lumbo-pelvic Stability and Adductor Strength in Women Soccer Players. A Randomized Controlled Study.

Abstract

Background: Abdominal and lumbo-pelvic stability alterations may origin lower limb injuries, such as for example adductor pathology in soccer players. Imbalance can be caused by both intrinsic and extrinsic factors. Methods: This randomized controlled trial conducted over an 8-week period included 25 female footballers randomly allocated to an experimental group (isometric abdominal training and gluteus medius-specific training) or a control group (isometric abdominal training). The exercise protocol in common for both groups included three exercises: Plank, Lateral plank and Bird dog. Specific exercises for the gluteus medius were: Pelvic drop and Stabilization of the gluteus medius in knee valgus. Outcome measures were lumbo-pelvic stability and adductor strength.Results. Lumbo-pelvic stability after surgery was higher in the control group (MD: 4.84 vs MD: 9.58; p < .01) with differences in the analysis of repeated measures (p<.001), but not in group interaction (p =.26). Changes were found in adductor strength in the experimental group (MD: -2.48; p<.001 in the left adductor; MD: -1.48; p<.01 in right adductor) and control group (MD: -1.68; p<.001 in the left adductor; MD: -2.05; p<.001 in the right adductor) after the intervention, with differences in the analysis of repeated measures in left (p<.001) and right (p<.001) adductor strength.Conclusions. An abdominal and gluteal training protocol shows no advantage over a protocol of abdominal training alone for lumbo-pelvic stability and adductor strength and flexibility, while improvements are maintained at four weeks follow-up. Trial Registration Number: NCT03617887.