| Objective. To determine the effects of augmented feedback on knee kinetics and kinematics of pediatric female soccer players during a jump-landing task. Subjects. Twenty--seven healthy female soccer players (age = 10 +/- 1 years, height = 141.02 +/- 6.72 cm, weight = 33.55 +/- 5.28 kg) from an area soccer league's Under-11 age division. Methods. Subjects were randomly assigned to either control a (CON) or intervention (FB) group and performed a jump-landing task before and after an intervention period. The FB group was provided with augmented feedback on aspects proper landing technique prior to each trial of the second set of jump-landing trials. Knee kinetic and kinematic data were collected for a total of six trials per subject and were analyzed using a mix model analysis of variance. Results. Statistically significant differences were found for anterior tibial shear force (ATSF) (F1,24=4.321, p=.048) and for vertical ground reaction force (VGRF) (F1,24=8.497, p=.008). Moderate to large effect sizes were found for knee valgus moment (ES = 0.77) and peak knee flexion (ES = 0.68). Conclusion. Female pediatric soccer players are able to decrease ATSF and VRGF with one session of augmented feedback, indicating that augmented feedback may be an effective strategy in ACL injury prevention for pediatric athletes. |
