Biceps Femoris Activation during Hamstring Strength Exercises: A Systematic Review

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Llurda Almuzara, Luis
Labata Lezaun, Noé
López de Celis, Carlos
Aiguadé Aiguadé, RamonAiguadé Aiguadé, Ramon - ORCID ID
Romaní Sánchez, Sergi
Rodríguez-Sanz, Jacobo
Fernández-de-las-Peñas, César
Pérez Bellmunt, Albert
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cc-by (c) Luis Llurda Almuzara, 2021
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Background: The aim of the study was to systematically evaluate the biceps femoris long head activation across cross-sectional hamstring strength exercise studies. Methods: A systematic review design was followed. The search strategy conducted in PubMed, Cochrane Library, and Web of Sciences databases found a total of 3643 studies. Once inclusion and exclusion criteria were applied, 29 studies were finally included in this systematic review. A total of 507 participants and 114 different exercises were analyzed. Exercises were evaluated individually and grouped into several categories: Nordics, isokinetic exercises, lunges, squats, deadlifts, good mornings, hip thrusts, bridges, leg curls, swings, hip and back extensions, and others. Results: Results showed the isokinetic and Nordic exercises as the categories with highest biceps femoris activation (>60% of Maximal Voluntary Isometric Contraction). Nordic hamstring exercise ankle dorsiflexion was the exercise that achieved the highest biceps femoris long head activation (128.1% of its Maximal Voluntary Isometric Contraction). Conclusions: The results from this systematic review suggest that isokinetic and Nordic exercises seem to be the best option to activate biceps femoris long head. Future studies evaluating the implementation of these exercises in prevention programs are needed
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International Journal of Environmental Research and Public Health, 2021, núm. 18, 8733