Rhodri S Lloyd1, Jon L Oliver2, Gregory D Myer3, Mark De Ste Croix4, Paul J Read5. 1. School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK; Sport Performance Research Institute, New Zealand (SPRINZ), AUT University, Auckland, New Zealand; Centre for Sport Science and Human Performance, Waikato Institute of Technology, Hamilton, New Zealand. Electronic address: rlloyd@cardiffmet.ac.uk. 2. School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK; Sport Performance Research Institute, New Zealand (SPRINZ), AUT University, Auckland, New Zealand. 3. Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics and Orthopaedic Surgery, College of Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH, USA; The Micheli Center for Sports Injury Prevention, Boston, MA, USA. 4. School of Sport and Exercise, University of Gloucestershire, Gloucester, UK. 5. School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK; Athlete Health and Performance Research Centre, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
Abstract
OBJECTIVE: Determine how lower limb neuromuscular control changes over the course of a competitive soccer season. DESIGN: Repeated measures. SETTING: Academy soccer club. PARTICIPANTS: 43 male youth soccer players (age 13.1 ± 2.2 yr; height 160.1 ± 15.7 cm; body mass 49.4 ± 14.3 kg; maturity offset 0.2 ± 1.9 yr). MAIN OUTCOME MEASURES: Pre-, mid- and end of season assessments of peak landing forces during single leg 75% horizontal hop and stick (75%HOP) and a single leg countermovement jump (SLCMJ), single leg hop for distance (SLHD), knee valgus during the tuck jump assessment (TJA) and inter-limb symmetries. RESULTS: Hop distance increased significantly. Absolute peak landing forces in the left leg during the SLCMJ and 75%HOP increased significantly, with significant increases also present in the same leg for SLCMJ relative peak landing force. TJA knee valgus score was reduced in the right leg, but remained at a 'moderate' level in the left knee. CONCLUSION: Neuromuscular control, as evidenced by increased absolute and relative peak landing forces, appears to reduce over the course of a competitive season. Young soccer players should engage in neuromuscular training throughout the season to offset any decrements in neuromuscular control and to facilitate appropriate landing strategies.
OBJECTIVE: Determine how lower limb neuromuscular control changes over the course of a competitive soccer season. DESIGN: Repeated measures. SETTING: Academy soccer club. PARTICIPANTS: 43 male youth soccer players (age 13.1 ± 2.2 yr; height 160.1 ± 15.7 cm; body mass 49.4 ± 14.3 kg; maturity offset 0.2 ± 1.9 yr). MAIN OUTCOME MEASURES: Pre-, mid- and end of season assessments of peak landing forces during single leg 75% horizontal hop and stick (75%HOP) and a single leg countermovement jump (SLCMJ), single leg hop for distance (SLHD), knee valgus during the tuck jump assessment (TJA) and inter-limb symmetries. RESULTS: Hop distance increased significantly. Absolute peak landing forces in the left leg during the SLCMJ and 75%HOP increased significantly, with significant increases also present in the same leg for SLCMJ relative peak landing force. TJA knee valgus score was reduced in the right leg, but remained at a 'moderate' level in the left knee. CONCLUSION: Neuromuscular control, as evidenced by increased absolute and relative peak landing forces, appears to reduce over the course of a competitive season. Young soccer players should engage in neuromuscular training throughout the season to offset any decrements in neuromuscular control and to facilitate appropriate landing strategies.
Authors: Amy O Parkinson; Charlotte L Apps; John G Morris; Cleveland T Barnett; Martin G C Lewis Journal: J Sports Sci Med Date: 2021-10-01 Impact factor: 2.988
Authors: Luis Miguel Fernández-Galván; Pedro Jiménez-Reyes; Víctor Cuadrado-Peñafiel; Arturo Casado Journal: Int J Environ Res Public Health Date: 2022-01-27 Impact factor: 3.390