TY - JOUR
T1 - The Effect of the Nordic Hamstring Exercise on Muscle Activity
T2 - A Multichannel Electromyography Randomized Controlled Trial
AU - Suskens, J.J.M.
AU - Maas, Huub
AU - van Dieen, Jaap H.
AU - Kerkhoffs, G.M.M.J.
AU - Tol, J.L.
AU - Goedhart, Edwin A.
AU - Reurink, G.
N1 - Funding Information: The authors would like to thank L.B. Gerritsen for contribution in data collection, Dr G.S. Faber for his contribution to the measurement setup, Dr S.M. Bruijn for his contribution to the data analysis, and all participants for participating in this study. Funding: This work was performed with participants from the National Basketball Association (NBA)/General Electric (GE) Healthcare Orthopedics and Sports Medicine Collaboration. This work was supported by the Amsterdam Movement Sciences Research Institute (AMS), and the Dutch Organization for Health Research and Development (ZonMw). Publisher Copyright: © 2023 Human Kinetics, Inc.
PY - 2023/12/1
Y1 - 2023/12/1
N2 - The aim of this study was to evaluate the effect of a Nordic hamstring exercise intervention on biceps femoris long head,semitendinosus, and semimembranosus muscle’s activity and relative contributions through multichannel electromyography.Twenty-four injury-free male basketball players (mean age 20 [3] y) were randomly assigned to a 12-week intervention (n = 13)or control group (n = 11). The primary outcome measures were normalized muscle activity (percentage of maximal voluntaryisometric contraction, %MVIC) and relative contribution of hamstring muscles over 12 weeks. No effects were found on any ofthe primary outcome measures. Between-group differences over 12 weeks were 2.7%MVIC (95% confidence interval 95% CI,−0.7 to 6.1) for the biceps femoris long head, 3.4%MVIC (95% CI,−1.4 to 8.2) for the semitendinosus, and 0.8%MVIC (95% CI,−3.0 to 4.6) for the semimembranosus,P= .366. Between-group differences over 12 weeks were 1.0% relative contribution(%con; 95% CI,−3.0 to 5.1) for the biceps femoris long head, 2.2% relative contribution (95% CI,−2.8 to 7.2) for thesemitendinosus, and−3.3% relative contribution (95% CI,−6.4 to−0.1) for the semimembranosusP= .258. A positive valueimplies a higher value for the Nordic group. A Nordic hamstring exercise intervention did not affect the level of muscle activityand relative contribution of hamstring muscles in performance of the Nordic hamstring exercise
AB - The aim of this study was to evaluate the effect of a Nordic hamstring exercise intervention on biceps femoris long head,semitendinosus, and semimembranosus muscle’s activity and relative contributions through multichannel electromyography.Twenty-four injury-free male basketball players (mean age 20 [3] y) were randomly assigned to a 12-week intervention (n = 13)or control group (n = 11). The primary outcome measures were normalized muscle activity (percentage of maximal voluntaryisometric contraction, %MVIC) and relative contribution of hamstring muscles over 12 weeks. No effects were found on any ofthe primary outcome measures. Between-group differences over 12 weeks were 2.7%MVIC (95% confidence interval 95% CI,−0.7 to 6.1) for the biceps femoris long head, 3.4%MVIC (95% CI,−1.4 to 8.2) for the semitendinosus, and 0.8%MVIC (95% CI,−3.0 to 4.6) for the semimembranosus,P= .366. Between-group differences over 12 weeks were 1.0% relative contribution(%con; 95% CI,−3.0 to 5.1) for the biceps femoris long head, 2.2% relative contribution (95% CI,−2.8 to 7.2) for thesemitendinosus, and−3.3% relative contribution (95% CI,−6.4 to−0.1) for the semimembranosusP= .258. A positive valueimplies a higher value for the Nordic group. A Nordic hamstring exercise intervention did not affect the level of muscle activityand relative contribution of hamstring muscles in performance of the Nordic hamstring exercise
KW - injury prevention
KW - muscle function
KW - muscle strain injury
UR - http://www.scopus.com/inward/record.url?scp=85178501282&partnerID=8YFLogxK
U2 - https://doi.org/10.1123/jab.2023-0037
DO - https://doi.org/10.1123/jab.2023-0037
M3 - Article
SN - 1065-8483
VL - 39
SP - 377
EP - 387
JO - Journal of applied biomechanics
JF - Journal of applied biomechanics
IS - 6
ER -