title: Heart rate response to two lifting techniques.
abstract: OBJECTIVE
  To determine the heart rate response to repetitive lifting of light weights employing two techniques, stoop and squat.
  
  
  METHODS
  Randomized cross-over trial.
  
  
  METHODS
  Twenty healthy volunteers (11 women, 9 men), mean age of 25 years, recruited from the staff of a physical medicine and rehabilitation department.
  
  
  METHODS
  Subjects lifted and lowered a box weighing 0, 1, or 3 kg, using the stoop (bent at waist with knees straight) and squat (knees bent) techniques, 20 times in 1 minute.
  
  
  METHODS
  The heart rate was recorded every 5 seconds during the effort aid 30 seconds and 1 minute after the test.
  
  
  RESULTS
  Significantly higher heart rates were found during both the test and recuperation phases of the squat technique with each of the three loads (p < .05). The heart rate increase was also higher with the 3 kg load than with the 1 kg or 0 kg load (p = .0001).
  
  
  CONCLUSIONS
  The heart rate is lower using the stoop technique for lifting. This may explain why individuals choose the more ergonomically risky stoop technique in everyday lifting tasks.
authors.affiliation: Service de Reeducation et Readaptation Fonctionnelle, C.H.R.U de Lille, France.
authors.forename: N
authors.initials: N
authors.lastname: Revuelta
authors.forename: A
authors.initials: A
authors.lastname: Dauphin
authors.forename: O
authors.initials: O
authors.lastname: Kowslowski
authors.forename: D
authors.initials: D
authors.lastname: Dubois
authors.forename: A
authors.initials: A
authors.lastname: Thevenon
mesh_terms: D001696:Biomechanical Phenomena; D018592:Cross-Over Studies; D004734:Energy Metabolism; D005260:Female; D006339:Heart Rate; D006801:Humans; D017770:Lifting; D008297:Male