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A Longitudinal Investigation of Muscle Injuries in an Elite Spanish Male Academy Soccer Club: A Hamstring Injuries Approach
Open AccessArticle

Assessment of Hamstring: Quadriceps Coactivation without the Use of Maximum Voluntary Isometric Contraction

1
Faculty of Sport Sciences, Biomechanics Laboratory, Universidad Politécnica de Madrid, 28040 Madrid, Spain
2
Faculty of Sport Sciences, Universidad Europea de Madrid, 28670 Madrid, Spain
3
Medical Services of Atlético de Madrid, Club Atlético de Madrid, 28221 Madrid, Spain
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(5), 1615; https://doi.org/10.3390/app10051615
Received: 3 February 2020 / Revised: 14 February 2020 / Accepted: 22 February 2020 / Published: 29 February 2020
(This article belongs to the Special Issue Applied Biomechanics in Sport, Rehabilitation and Ergonomy)
This study aimed to study the coactivation patterns of the hamstring and quadriceps muscle groups during submaximal strength exercises commonly used in injury prevention in soccer without the use of maximum voluntary isometric contraction testing. This was used to compare: (i) the inter-limb differences in muscle activation; (ii) the intra-muscular group activation pattern and (iii) the activation pattern during different phases of the exercise. Muscle activation was recorded by surface electromyography in 19 elite, male, youth soccer players. Participants performed the following: Bulgarian squat, lunge and squat. Electrical activity was recorded for the rectus femoris, vastus medialis, vastus lateralis, biceps femoris and semitendinosus. No significant inter-limb differences were found (F1, 13 = 619; p = 0.82; η2 = 0.045). Significant differences were found in the muscle activation between individual muscles within the quadriceps and hamstrings muscle group for each of the exercises: Bulgarian squat (F1,18 = 331: p < 0.001; η2 = 0.80), lunge (F4,72 = 114.5; p < 0.001; η2 = 0.86) and squat (F1,16 = 247.31; p < 0.001; η2 = 0.93). Differences were found between the different phases of each of the exercises (F2,26 = 52.27; p = 0.02; η2 = 0.80). The existence of an activation pattern of each of the muscles in the three proposed exercises could be used for muscle assessment and as a tool for reconditioning post-injury. View Full-Text
Keywords: electromyography; hamstrings; human performance; prevention; ratio; rehabilitation; soccer electromyography; hamstrings; human performance; prevention; ratio; rehabilitation; soccer
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MDPI and ACS Style

Torres, G.; Chorro, D.; Navandar, A.; Rueda, J.; Fernández, L.; Navarro, E. Assessment of Hamstring: Quadriceps Coactivation without the Use of Maximum Voluntary Isometric Contraction. Appl. Sci. 2020, 10, 1615.

AMA Style

Torres G, Chorro D, Navandar A, Rueda J, Fernández L, Navarro E. Assessment of Hamstring: Quadriceps Coactivation without the Use of Maximum Voluntary Isometric Contraction. Applied Sciences. 2020; 10(5):1615.

Chicago/Turabian Style

Torres, Gonzalo; Chorro, David; Navandar, Archit; Rueda, Javier; Fernández, Luís; Navarro, Enrique. 2020. "Assessment of Hamstring: Quadriceps Coactivation without the Use of Maximum Voluntary Isometric Contraction" Appl. Sci. 10, no. 5: 1615.

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