title: Achy breaky makey wakey heart? A randomised crossover trial of musical prompts.
abstract: OBJECTIVE
  Compared with no music (NM), does listening to 'Achy breaky heart' (ABH) or 'Disco science' (DS) increase the proportion of prehospital professionals delivering chest compressions at 2010 guideline-compliant rates of 100-120 bpm and 50-60 mm depths?
  
  
  METHODS
  A randomised crossover trial recruiting at an Australian ambulance conference. Volunteers performed three 1-min sequences of continuous chest compressions on a manikin accompanied by NM, repeated choruses of ABH and DS, prerandomised for order.
  
  
  RESULTS
  37 of 74 participants were men; median age 37 years; 61% were paramedics, 20% students and 19% other health professionals. 54% had taken cardiopulmonary resuscitation training within 1 year. Differences in compression rate (mode, IQR) were significant for NM (105, 99-116) versus ABH (120, 107-120) and DS (104, 103-107) versus ABH (p<0.001) but not NM versus DS (p=0.478). Differences in proportions of participants compressing at 100-120 bpm were significant for DS (61/74, 82%) versus NM (48/74, 65%, p=0.007) and DS versus ABH (47/74, 64%, p=0.007) but not NM versus ABH (p=1). Differences in compression depth were significant for NM (48 mm, 46-59 mm) versus DS (54 mm, 44-58 mm, p=0.042) but not NM versus ABH (54 mm, 43-59 mm, p=0.065) and DS versus ABH (p=0.879). Differences in proportions of subjects compressing at 50-60 mm were not significant (NM 31/74 (42%); ABH 32/74 (43%); DS 29/74 (39%); all p>0.5).
  
  
  CONCLUSIONS
  Listening to DS significantly increased the proportion of prehospital professionals compressing at 2010 guideline-compliant rates. Regardless of intervention more than half gave compressions that were too shallow. Alternative audible feedback mechanisms may be more effective.
authors: Pre-hospital, Emergency and Cardiovascular Care Applied Research Group, Faculty of Health and Life Sciences, Coventry University, Room 304, Richard Crossman Building, Priory Street, Coventry CV1 5FB, UK. malcolm.woollard@btinternet.com
authors: Malcolm
authors: M
authors: Woollard
authors: Jason
authors: J
authors: Poposki
authors: Brae
authors: B
authors: McWhinnie
authors: Lettie
authors: L
authors: Rawlins
authors: Graham
authors: G
authors: Munro
authors: Peter
authors: P
authors: O'Meara
mesh_terms: D000328:Adult; D001315:Australia; D016887:Cardiopulmonary Resuscitation / Q000193:education / Q000592:standards*; D018592:Cross-Over Studies; D004635:Emergency Medicine / Q000193:education; D005260:Female; D019983:Guideline Adherence; D006801:Humans; D008297:Male; D008348:Manikins; D008875:Middle Aged; D009146:Music; D055815:Young Adult