Neuromuscular training improves lower extremity biomechanics associated with knee injury during landing in 11–13 year old female netball athletes: A randomized control study
Hopper, Amanda J.
Haff, Erin E.
Lloyd, Rhodri S.
Haff, G. Gregory
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The purpose of this study was to examine the effects of a neuromuscular training (NMT) program on lower-extremity biomechanics in youth female netball athletes. The hypothesis was that significant improvements would be found in landing biomechanics of the lower-extremities, commonly associated with anterior cruciate ligament (ACL) injury, following NMT. Twenty-three athletes (age = 12.2 ± 0.9 years; height = 1.63 ± 0.08 m; mass = 51.8 ± 8.5 kg) completed two testing sessions separated by 7-weeks and were randomly assigned to either a experimental or control group. Thirteen athletes underwent 6-weeks of NMT, while the remaining 10 served as controls and continued their regular netball training. Three-dimensional lower-extremity kinematics and vertical ground reaction force (VGRF) were measured during two landing tasks, a drop vertical jump and a double leg broad jump with a single leg landing. The experimental group significantly increased bilateral knee marker distance during the bilateral landing task at maximum knee-flexion range of motion. Knee internal rotation angle during the unilateral landing task at maximum knee flexion-extension range of motion was significantly reduced (p ≤ 0.05, g > 1.00). The experimental group showed large, significant decreases in peak vertical ground reaction force in both landing tasks (p ≤ 0.05, g > −1.30). Control participants did not demonstrate any significant pre-to-post-test changes in response to the 6-week study period. Results of the study affirm the hypothesis that a 6-week NMT program can enhance landing biomechanics associated with ACL injury in 11–13 year old female netball athletes.
Frontiers in Physiology;
Hopper, A., Haff, E., Joyce, C., Lloyd, R. and Haff, G. (2017) 'Neuromuscular training improves lower extremity biomechanics associated with knee injury during landing in 11-13 year old female netball athletes', Frontiers in Physiology, 8. https://doi.org/10.3389/fphys.2017.00883
This article was published in Frontiers in Physiology on 07 November 2017 (online), available open access at https://doi.org/10.3389/fphys.2017.00883
Cardiff Metropolitan University (Grant ID: Cardiff Metropolian (Internal))
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