Bart Dingenen1, Bart Malfait2, Stefaan Nijs3, Koen H E Peers4, Styn Vereecken5, Sabine M P Verschueren6, Filip F Staes7. 1. KU Leuven Musculoskeletal Rehabilitation Research Group, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, Tervuursevest 101 b1501, 3001 Heverlee, Belgium. Electronic address: bart.dingenen@faber.kuleuven.be. 2. KU Leuven Musculoskeletal Rehabilitation Research Group, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, Tervuursevest 101 b1501, 3001 Heverlee, Belgium. Electronic address: bart.malfait@faber.kuleuven.be. 3. Division of Orthopedics and Traumatology, Department of Development and Regeneration, University Hospitals Leuven, Campus Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium. Electronic address: stefaan.nijs@uzleuven.be. 4. Physical Medicine and Rehabilitation, University Hospitals Leuven, Campus Pellenberg, Weligerveld 1, 3212 Pellenberg, Belgium. Electronic address: koen.peers@uzleuven.be. 5. Physical Medicine and Rehabilitation, University Hospitals Leuven, Campus Pellenberg, Weligerveld 1, 3212 Pellenberg, Belgium. Electronic address: stijn.vereecken@uzleuven.be. 6. KU Leuven Musculoskeletal Rehabilitation Research Group, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, Tervuursevest 101 b1501, 3001 Heverlee, Belgium. Electronic address: sabine.verschueren@faber.kuleuven.be. 7. KU Leuven Musculoskeletal Rehabilitation Research Group, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, Tervuursevest 101 b1501, 3001 Heverlee, Belgium. Electronic address: filip.staes@faber.kuleuven.be.
Abstract
BACKGROUND: Previous studies showed that the amount of hip flexion and the combination of knee valgus and lateral trunk motion, measured with two-dimensional video analysis, were related to three-dimensional measured knee joint moments during single-leg drop vertical jumps, but it remains unclear whether these measurements can be used to identify non-contact knee injury risk. METHODS: Fifty injury-free female athletes participated in the study. Two-dimensional video analysis was used to measure hip flexion, knee valgus and lateral trunk motion angles during single-leg drop vertical jumps. Time loss non-contact knee injuries were registered during a one-year follow-up. Independent t-tests and receiver operating characteristic analysis were used to analyze the predictive ability of the two-dimensional angles. FINDINGS: Seven participants sustained a time loss non-contact knee injury. Hip flexion was not significantly different between groups (P>.05). The combination of knee valgus and lateral trunk motion was significantly smaller in the injured (P=.036) and non-injured legs (P=.009) of the future injured group compared with the respective matched leg of the non-injured group. The receiver operating characteristic analysis showed a significant discriminative accuracy between groups for the combination of knee valgus and lateral trunk motion of the uninjured leg of the future injured group with the matched leg of the non-injured group (area under curve=0.803; P=.012). INTERPRETATION: The measurement of a combination of increased knee valgus and ipsilateral trunk motion during the single-leg drop vertical jump with two-dimensional video analysis can be used to help identify female athletes with increased non-contact knee injury risk.
BACKGROUND: Previous studies showed that the amount of hip flexion and the combination of knee valgus and lateral trunk motion, measured with two-dimensional video analysis, were related to three-dimensional measured knee joint moments during single-leg drop vertical jumps, but it remains unclear whether these measurements can be used to identify non-contact knee injury risk. METHODS: Fifty injury-free female athletes participated in the study. Two-dimensional video analysis was used to measure hip flexion, knee valgus and lateral trunk motion angles during single-leg drop vertical jumps. Time loss non-contact knee injuries were registered during a one-year follow-up. Independent t-tests and receiver operating characteristic analysis were used to analyze the predictive ability of the two-dimensional angles. FINDINGS: Seven participants sustained a time loss non-contact knee injury. Hip flexion was not significantly different between groups (P>.05). The combination of knee valgus and lateral trunk motion was significantly smaller in the injured (P=.036) and non-injured legs (P=.009) of the future injured group compared with the respective matched leg of the non-injured group. The receiver operating characteristic analysis showed a significant discriminative accuracy between groups for the combination of knee valgus and lateral trunk motion of the uninjured leg of the future injured group with the matched leg of the non-injured group (area under curve=0.803; P=.012). INTERPRETATION: The measurement of a combination of increased knee valgus and ipsilateral trunk motion during the single-leg drop vertical jump with two-dimensional video analysis can be used to help identify female athletes with increased non-contact knee injury risk.
Authors: Jennifer A Hogg; Jason M Avedesian; Jed A Diekfuss; Shellie N Acocello; Rylee D Shimmin; Elisabeth A Kelley; Deborah A Kostrub; Gregory D Myer; Gary B Wilkerson Journal: J Sports Sci Med Date: 2022-02-15 Impact factor: 2.988
Authors: Manish Anand; Jed A Diekfuss; Alexis B Slutsky-Ganesh; Dustin R Grooms; Scott Bonnette; Kim D Barber Foss; Christopher A DiCesare; Jennifer L Hunnicutt; Gregory D Myer Journal: J Neurosci Methods Date: 2021-03-08 Impact factor: 2.390