The Journal of orthopaedic and sports physical therapy
Female Soccer Players at High Risk of Injury Maintained Improved Knee Abduction Load 6 Months After Neuromuscular Training Program
By Taylor JB, Hockenjos TJ, Nguyen AD and 4 others.
Abstract
Objective
To estimate immediate and long-term (retention) improvements in knee abduction moment (KAM) following a neuromuscular training (NMT) program with augmented biofeedback in individuals at high and low risk for injury.
Design
Secondary analysis of a randomized controlled trial.
Methods
One hundred fifty adolescent female soccer players were enrolled in a 6-week NMT program and randomized to biofeedback training groups: NMT + Hip-focus (NMT+H), NMT + Knee-focus (NMT+K), or NMT with a sham biofeedback. NMT was completed 3 times each week with augmented biofeedback delivered once per week. Standard 3-dimensional motion analysis of a drop vertical jump over artificial turf with embedded force platforms was performed at baseline (PRE), immediately following training (POST), and 6 months post training (RET). Baseline measures of KAM were used to stratify participants into low- (n = 87, 12.7 ± 2.2 years, 153.0 ± 11.4 cm, 47.2 ± 11.8 kg) and high-risk (n = 44, 14.0 ± 1.8 years, 161.6 ± 5.8 cm, 53.5 ± 9.2 kg) groups, based on a previously determined cut point. A mixed-design analysis of variance with between-group factors of risk (high, low) and training group (NMT+H, NMT+K, NMT), and a repeated within-group factor of session (PRE, POST, RET) were used for the analysis.