MORE EVIDENCE / MOTOR CONTROL RETRAINING AND EFFECT
1st October 2013
Changes in muscle size predictive of lower limb injury in this study.
Full analysis of all movement faults is the key!
Can Motor Control Training Lower the Risk of Injury for Professional Football Players?
Among injuries reported by the Australian Football League (AFL), lower limb injuries have shown the highest incidence and prevalence rates. Deficits in the muscles of the lumbo-pelvic region, such as a smaller size of multifidus (MF) muscle, have been related to occurrence of lower limb injuries in the pre-season in AFL players. Motor control training programs have been effective in restoring the size and control of the MF muscle, but the relationship between motor control training and the occurrence of injuries has not been extensively examined.
This pre-post intervention trial was delivered over the playing season as a panel design with 3 groups. The motor control program involved voluntary contractions of the MF, transversus abdominis (TrA), and pelvic floor muscles while receiving feedback from ultrasound imaging, and progressed into a functional rehabilitation program. Assessments of muscle size and function were performed using magnetic resonance imaging (MRI), and included measurement of cross-sectional areas (CSAs) of MF, psoas (PS), and quadratus lumborum (QL) muscles, and change in trunk CSA due to voluntarily contracting the TrA muscle. Injury data were obtained from club records. Informed consent was obtained from all study participants.
A smaller size of the MF muscle (OR=2.38) or QL muscle (OR=2.17) was predictive of lower limb injury in the playing season. At the time point when one group of players had not received the intervention (n=14), comparisons were made with the combined groups who had received the intervention (n=32). The risk of sustaining a severe injury was lower for those players who received the motor control intervention (OR=0.09).
While there are many factors associated with injuries in AFL, motor control training may provide a useful addition to strategies aimed at reducing lower limb injuries.