title: Flexibility and running economy in female collegiate track athletes.
abstract: OBJECTIVE
  Limited information exists regarding the association between flexibility and running economy in female athletes. This study examined relationships between lower limb and trunk flexibility and running economy in 17 female collegiate track athletes (20.12+/-1.80 y).
  
  
  METHODS
  Correlational design, subjects completed 4 testing sessions over a 2-week period. The 1st session assessed maximal oxygen uptake (VO2max=55.39+/-6.96 ml.kg-1.min-1). The 2nd session assessed trunk and lower limb flexibility. Two sets of 6 trunk and lower limb flexibility measures were performed after a 10-min treadmill warm-up at 2.68 m.s-1. The 3rd session consisted of 3 10-min accommodation runs at a speed of 2.68 m.s-1 which was approximately 60% VO2max. Each accommodation bout was separated by a 10-min rest. The 4th session assessed running economy. Subjects completed a 5-min warm-up at 2.68 m.s-1 followed by 10-min economy run at 2.68 m.s-1.
  
  
  RESULTS
  Pearson product moment correlations revealed no significant correlations between running economy and flexibility measures.
  
  
  CONCLUSIONS
  Results are in contrast to studies demonstrating an inverse relationship between trunk and/or lower limb flexibility and running economy in males. Furthermore, results are in contrast to studies reporting positive relationships between flexibility and running economy.
authors.affiliation: Department of Sports Medicine, College of Nursing and Health Professions, University of Southern Maine, Gorham, ME 04038-1032, USA. beaudoin@usm.maine.edu
authors.forename: C M
authors.initials: CM
authors.lastname: Beaudoin
authors.forename: J
authors.initials: J
authors.lastname: Whatley Blum
mesh_terms: D000328:Adult; D004526:Efficiency / Q000502:physiology*; D015444:Exercise; D005260:Female; D006801:Humans; D007866:Leg / Q000502:physiology*; D010101:Oxygen Consumption; D010807:Physical Endurance / Q000502:physiology; D018583:Pliability; D012420:Running / Q000502:physiology*; D013177:Sports; D013223:Statistics as Topic; D013334:Students; D014495:Universities