title: Surface electromyography during physical exercise in water: a systematic review.
abstract: BACKGROUND
  Aquatic exercise has been widely used for rehabilitation and functional recovery due to its physical and physiological benefits. However, there is a high variability in reporting on the muscle activity from surface electromyographic (sEMG) signals. The aim of this study is to present an updated review of the literature on the state of the art of muscle activity recorded using sEMG during activities and exercise performed by humans in water.
  
  
  METHODS
  A literature search was performed to identify studies of aquatic exercise movement.
  
  
  RESULTS
  Twenty-one studies were selected for critical appraisal. Sample size, functional tasks analyzed, and muscles recorded were studied for each paper. The clinical contribution of the paper was evaluated.
  
  
  CONCLUSIONS
  Muscle activity tends to be lower in water-based compared to land-based activity; however more research is needed to understand why. Approaches from basic and applied sciences could support the understanding of relevant aspects for clinical practice.
authors.forename: Antonio Ignacio
authors.initials: AI
authors.lastname: Cuesta-Vargas
authors.forename: Carlos Leonardo
authors.initials: CL
authors.lastname: Cano-Herrera
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