Single-leg landing(SL)is often associated with a high injury risk,especially anterior cruciate ligament(ACL)injuries and lateral ankle sprain.This work investigates the relationship between ankle motion patterns(ankle...Single-leg landing(SL)is often associated with a high injury risk,especially anterior cruciate ligament(ACL)injuries and lateral ankle sprain.This work investigates the relationship between ankle motion patterns(ankle initial contact angle[AICA]and ankle range of motion[AROM])and the lower limb injury risk during SL,and proposes an optimized landing strategy that can reduce the injury risk.To more realistically revert and simulate the ACL injury mechanics,we developed a knee musculoskeletal model that reverts the ACL ligament to a nonlinear short-term viscoelastic mechanical mechanism(strain ratedependent)generated by the dense connective tissue as a function of strain.Sixty healthy male subjects were recruited to collect biomechanics data during SL.The correlation analysis was conducted to explore the relationship between AICA,AROM,and peak vertical ground reaction force(PVGRF),joint total energy dissipation(TED),peak ankle knee hip sagittal moment,peak ankle inversion angle(PAIA),and peak ACL force(PAF).AICA exhibits a negative correlation with PVGRF(r=−0.591)and PAF(r=−0.554),and a positive correlation with TED(r=0.490)and PAIA(r=0.502).AROM exhibits a positive correlation with TED(r=0.687)and PAIA(r=0.600).The results suggested that the appropriate increases in AICA(30°to 40°)and AROM(50°to 70°)may reduce the lower limb injury risk.This study has the potential to offer novel perspectives on the optimized application of landing strategies,thus giving the crucial theoretical basis for decreasing injury risk.展开更多
基金sponsored by the Zhejiang Provincial Natural Science Foundation of China for Distinguished Young Scholars(LR22A020002)the Zhejiang Provincial Key Research and Development Program of China(2023C03197)+5 种基金the Ningbo Key R&D Program(2022Z196)the Zhejiang Province Exploring Public Welfare Projects(LTGY23H040003)the Ningbo Natural Science Foundation(20221JCGY010532 and 20221JCGY010607)the Public Welfare Science and Technology Project of Ningbo,China(2021S134)the Zhejiang Rehabilitation Medical Association Scientific Research Special Fund(ZKKY2023001)sponsored by the China Scholarship Council(CSC).
文摘Single-leg landing(SL)is often associated with a high injury risk,especially anterior cruciate ligament(ACL)injuries and lateral ankle sprain.This work investigates the relationship between ankle motion patterns(ankle initial contact angle[AICA]and ankle range of motion[AROM])and the lower limb injury risk during SL,and proposes an optimized landing strategy that can reduce the injury risk.To more realistically revert and simulate the ACL injury mechanics,we developed a knee musculoskeletal model that reverts the ACL ligament to a nonlinear short-term viscoelastic mechanical mechanism(strain ratedependent)generated by the dense connective tissue as a function of strain.Sixty healthy male subjects were recruited to collect biomechanics data during SL.The correlation analysis was conducted to explore the relationship between AICA,AROM,and peak vertical ground reaction force(PVGRF),joint total energy dissipation(TED),peak ankle knee hip sagittal moment,peak ankle inversion angle(PAIA),and peak ACL force(PAF).AICA exhibits a negative correlation with PVGRF(r=−0.591)and PAF(r=−0.554),and a positive correlation with TED(r=0.490)and PAIA(r=0.502).AROM exhibits a positive correlation with TED(r=0.687)and PAIA(r=0.600).The results suggested that the appropriate increases in AICA(30°to 40°)and AROM(50°to 70°)may reduce the lower limb injury risk.This study has the potential to offer novel perspectives on the optimized application of landing strategies,thus giving the crucial theoretical basis for decreasing injury risk.
