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Article

Relationship of Performance Measures and Muscle Activity between a 180° Change of Direction Task and Different Countermovement Jumps

Department of Sport Sciences and Physical Education, Nord University, 7600 Levanger, Norway
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Sports 2020, 8(4), 47; https://doi.org/10.3390/sports8040047
Received: 5 March 2020 / Revised: 7 April 2020 / Accepted: 8 April 2020 / Published: 10 April 2020
(This article belongs to the Special Issue Assessment and Development of Change of Direction Speed and Agility)
The ability to rapidly perform change of direction (COD) is crucial for performance in Soccer. COD speed is thought to share similarities with countermovement jumps in kinematics and muscle activation. Thus, the objective of the current study was to investigate the relationship between muscle activities in performance measures of a modified 505-agility test and different countermovement jumps. Twenty-one experienced soccer players performed a COD test including the 505-agility test and uni- and bi-lateral horizontal and vertical countermovement jumps. The main findings were that the vertical bilateral and horizontal unilateral countermovement jump were able to predict total time to complete the COD, but not 505-agility time. Muscle activity in the COD and countermovement jumps was only distinguished by a higher peak muscle activity for the adductor longus, semitendinosus and biceps femoris in the COD to stabilize the hip and decelerate knee joint movements when turning compared with the jumps. Conclusively, the relationship between performance in countermovement jumps and total time to complete the COD test was due to longer sprint distances, which makes the distinction between performances bigger. Peak muscle activity of most muscles is similar between the jumps and the COD step, indicating similar muscular demands between these activities. View Full-Text
Keywords: electromyography; countermovement jumps; specificity; horizontal uni- and bilateral jumps electromyography; countermovement jumps; specificity; horizontal uni- and bilateral jumps
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MDPI and ACS Style

Nygaard Falch, H.; Guldteig Rædergård, H.; Van den Tillaar, R. Relationship of Performance Measures and Muscle Activity between a 180° Change of Direction Task and Different Countermovement Jumps. Sports 2020, 8, 47. https://doi.org/10.3390/sports8040047

AMA Style

Nygaard Falch H, Guldteig Rædergård H, Van den Tillaar R. Relationship of Performance Measures and Muscle Activity between a 180° Change of Direction Task and Different Countermovement Jumps. Sports. 2020; 8(4):47. https://doi.org/10.3390/sports8040047

Chicago/Turabian Style

Nygaard Falch, Hallvard, Håvard Guldteig Rædergård, and Roland Van den Tillaar. 2020. "Relationship of Performance Measures and Muscle Activity between a 180° Change of Direction Task and Different Countermovement Jumps" Sports 8, no. 4: 47. https://doi.org/10.3390/sports8040047

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