title: Strength and endurance training reduces the loss of eccentric hamstring torque observed after soccer specific fatigue.
abstract: OBJECTIVE
  To investigate the effect of two hamstring training protocols on eccentric peak torque before and after soccer specific fatigue.
  
  
  METHODS
  Twenty-two university male soccer players.
  
  
  METHODS
  Isokinetic strength tests were performed at 60°/s pre and post fatigue, before and after 2 different training interventions. A 45-min soccer specific fatigue modified BEAST protocol (M-BEAST) was used to induce fatigue. Players were randomly assigned to a 4 week hamstrings conditioning intervention with either a maximum strength (STR) or a muscle endurance (END) emphasis.
  
  
  METHODS
  The following parameters were evaluated: Eccentric peak torque (EccPT), angle of peak torque (APT), and angle specific torques at knee joint angles of 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80° and 90°.
  
  
  RESULTS
  There was a significant effect of the M-BEAST on the Eccentric torque angle profile before training as well as significant improvements in post-fatigue torque angle profile following the effects of both strength and muscle endurance interventions.
  
  
  CONCLUSIONS
  Forty-five minutes of simulated soccer activity leads to reduced eccentric hamstring torque at longer muscle lengths. Short-term conditioning programs (4-weeks) with either a maximum strength or a muscular endurance emphasis can equally reduce fatigue induced loss of strength over this time period.
authors.affiliation: School of Health Sciences, Centre for Health Sciences Research, University of Salford, Salford, M66PU, UK. Electronic address: m.j.matthews@salford.ac.uk.
authors.forename: Martyn J
authors.initials: MJ
authors.lastname: Matthews
authors.affiliation: School of Health Sciences, Centre for Health Sciences Research, University of Salford, Salford, M66PU, UK.
authors.forename: Kate
authors.initials: K
authors.lastname: Heron
authors.affiliation: School of Health Sciences, Centre for Health Sciences Research, University of Salford, Salford, M66PU, UK.
authors.forename: Stefanie
authors.initials: S
authors.lastname: Todd
authors.affiliation: School of Health Sciences, Centre for Health Sciences Research, University of Salford, Salford, M66PU, UK.
authors.forename: Andrew
authors.initials: A
authors.lastname: Tomlinson
authors.affiliation: School of Health Sciences, Centre for Health Sciences Research, University of Salford, Salford, M66PU, UK.
authors.forename: Paul
authors.initials: P
authors.lastname: Jones
authors.affiliation: Faculty of Sport and Health Sciences, Oxford Brookes University, Oxford, UK.
authors.forename: Anne
authors.initials: A
authors.lastname: Delextrat
authors.affiliation: Instituto de Investigaciones, Escuela de Medicina, Universidad de Santander, Bucaramanga, Santander, Colombia.
authors.forename: Daniel D
authors.initials: DD
authors.lastname: Cohen
mesh_terms: D000070633:Hamstring Muscles / Q000502:physiology*; D006801:Humans; D007719:Knee Joint / Q000502:physiology; D008297:Male; D018763:Muscle Fatigue / Q000502:physiology*; D053580:Muscle Strength / Q000502:physiology*; D010807:Physical Endurance; D055070:Resistance Training; D012916:Soccer / Q000502:physiology*; D019415:Torque; D055815:Young Adult
keywords: Fatigue; Hamstring; Torque; Training