title: Direct relation of acute effects of static stretching on isokinetic torque production with initial flexibility level.
abstract: OBJECTIVE
  To examine the acute effect of a single static-stretching session of hamstring muscles on torque production in relation with individual flexibility.
  
  
  METHODS
  Maximal voluntary concentric torque of hamstring muscles was measured before and after a static-stretching session (6 × 30 s). Torque changes were correlated with the flexibility level determined at the onset of the experimental procedure.
  
  
  RESULTS
  The hamstring-stretching intervention significantly reduced maximal concentric torque in participants with low and high hamstring flexibility. Hamstring flexibility and torque decrease, determined immediately after the stretching procedure, were negatively correlated.
  
  
  CONCLUSIONS
  Torque decrease measured after the static-stretching session is dependent on participant flexibility. Participants with low flexibility are much more likely to demonstrate large torque decreases poststretching.
authors.affiliation: Faculty of Sport Sciences, University of Bourgogne, Dijon, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Babault
authors.forename: Wacef
authors.initials: W
authors.lastname: Bazine
authors.forename: Gaëlle
authors.initials: G
authors.lastname: Deley
authors.forename: Christos
authors.initials: C
authors.lastname: Paizis
authors.forename: Grégory
authors.initials: G
authors.lastname: Lattier
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D053580:Muscle Strength / Q000502:physiology*; D052580:Muscle Stretching Exercises / Q000379:methods*; D018482:Muscle, Skeletal / Q000502:physiology*; D013848:Thigh; D019415:Torque; D055815:Young Adult