title: Effect of heavy back squats on repeated sprint performance in trained men.
abstract: OBJECTIVE
  This study examined the impact of post activation potentiation on repeated sprint performance in trained Rugby Union players.
  
  
  METHODS
  Ten, male, professional Rugby Union players (mean age=25.2±5.02 years) performed 7, 30-meter sprints, separated by 25 seconds, 4 minutes following back squats (90% 1 repetition maximum) or a control condition performed in a counterbalanced order.
  
  
  RESULTS
  Significant condition X sprint interactions for 10-meter (P=0.02) and 30-meter (P=0.05) indicated that times were significantly faster in the PAP condition for sprints 5, 6 and 7 across both distances. Fatigue rate was also significantly lower in the PAP condition for 10-meter (P=0.023) and 30-meter (P=0.006) sprint running speed.
  
  
  CONCLUSIONS
  This study evidences that a heavy resistance exercise stimulus administered four minutes prior to repeated sprints can offset the decline in sprint performance seen during subsequent maximal sprinting over 10 and 30-meters in Rugby Union players.
authors: Department of Biomolecular and Sports Sciences Coventry University, Coventry, UK - michael.duncan@coventry.ac.uk.
authors: M J
authors: MJ
authors: Duncan
authors: G
authors: G
authors: Thurgood
authors: S W
authors: SW
authors: Oxford
mesh_terms: D000328:Adult; D054874:Athletic Performance / Q000502:physiology*; D018592:Cross-Over Studies; D005080:Exercise Test; D005538:Football / Q000502:physiology*; D006801:Humans; D008297:Male; D010807:Physical Endurance / Q000502:physiology; D055070:Resistance Training / Q000379:methods; D012420:Running / Q000502:physiology*