Matthew N Bourne1, Andrea M Bruder2, Benjamin F Mentiplay3, David L Carey3, Brooke E Patterson3, Kay M Crossley3. 1. School of Allied Health Sciences, Griffith University, Gold Coast, Australia; La Trobe Sport and Exercise Medicine Research Centre, La Trobe University, Melbourne, Australia. Electronic address: m.bourne@griffith.edu.au. 2. La Trobe Sport and Exercise Medicine Research Centre, La Trobe University, Melbourne, Australia; School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia. 3. La Trobe Sport and Exercise Medicine Research Centre, La Trobe University, Melbourne, Australia.
Abstract
OBJECTIVES: To determine eccentric knee flexor strength in elite female Australian Rules Football (ARF) players with and without a history of unilateral anterior cruciate ligament reconstruction (ACLR) using an ipsilateral semitendinosus graft. DESIGN: Case-control. SETTING: Elite ARF Women's competition. PARTICIPANTS: Eighty-four elite female ARF players (mean age, 25 ± 4.9 years; height, 1.71 ± 0.73 m; weight, 67 kg ± 7.4 kg) with (n = 12) and without (n = 72) a history of unilateral ACLR in the previous 10 years. MAIN OUTCOME MEASURES: Peak eccentric knee flexor force during the Nordic hamstring exercise (NHE). RESULTS: Players with a history of unilateral ACLR displayed lower levels of eccentric knee flexor strength in their surgically reconstructed limb than their uninjured contralateral limb (mean difference -53.77 N, 95% CI = -85.06 to -24.27, d = -0.51) and compared to the limbs of players with no history of injury (mean difference = -46.32 N, 95% CI = -86.65 to -11.13, d = -0.73). CONCLUSION: Elite female ARF players with a history of unilateral ACLR display deficits in eccentric knee flexor strength in their surgically reconstructed limb for up to 10 years following surgery.
OBJECTIVES: To determine eccentric knee flexor strength in elite female Australian Rules Football (ARF) players with and without a history of unilateral anterior cruciate ligament reconstruction (ACLR) using an ipsilateral semitendinosus graft. DESIGN: Case-control. SETTING: Elite ARFWomen's competition. PARTICIPANTS: Eighty-four elite female ARF players (mean age, 25 ± 4.9 years; height, 1.71 ± 0.73 m; weight, 67 kg ± 7.4 kg) with (n = 12) and without (n = 72) a history of unilateral ACLR in the previous 10 years. MAIN OUTCOME MEASURES: Peak eccentric knee flexor force during the Nordic hamstring exercise (NHE). RESULTS: Players with a history of unilateral ACLR displayed lower levels of eccentric knee flexor strength in their surgically reconstructed limb than their uninjured contralateral limb (mean difference -53.77 N, 95% CI = -85.06 to -24.27, d = -0.51) and compared to the limbs of players with no history of injury (mean difference = -46.32 N, 95% CI = -86.65 to -11.13, d = -0.73). CONCLUSION: Elite female ARF players with a history of unilateral ACLR display deficits in eccentric knee flexor strength in their surgically reconstructed limb for up to 10 years following surgery.
Authors: Matthew Buckthorpe; Furio Danelon; Giovanni La Rosa; Gianni Nanni; Matthew Stride; Francesco Della Villa Journal: Sports Med Date: 2020-12-17 Impact factor: 11.136
Authors: Tyler J Collings; Matthew N Bourne; Rod S Barrett; William du Moulin; Jack T Hickey; Laura E Diamond Journal: Sports Med Date: 2021-01-05 Impact factor: 11.136