title: Exercise and heart rate recovery.
abstract: OBJECTIVE
  This study examines whether heart rate recovery (HRR) improves as a result of exercise training during cardiac rehabilitation (CR).
  
  
  METHODS
  A retrospective study was performed that included 100 patients who completed phase II CR and had entry and exit exercise stress tests. HRR was compared for the sample. Improvements in HRR were compared between gender and age groups. Correlation between age and HRR was performed.
  
  
  RESULTS
  The total sample improved HRR (P = .020). There was no significant difference in the improvement of HRR based on gender, indicating males and females improve at similar rates (P = .833). Similarly, there was no significant difference in the improvement of HRR based on age, indicating older subjects improve similarly to younger subjects (P = .700). There was no relationship between age and HRR; therefore, as age increases there is no decrease in HRR.
  
  
  CONCLUSIONS
  HRR improves in patients who complete CR.
authors.affiliation: University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7460, USA.
authors.forename: Julie S
authors.initials: JS
authors.lastname: MacMillan
authors.forename: Leslie L
authors.initials: LL
authors.lastname: Davis
authors.forename: Carol F
authors.initials: CF
authors.lastname: Durham
authors.forename: Elizabeth S
authors.initials: ES
authors.lastname: Matteson
mesh_terms: D000368:Aged; D003327:Coronary Disease / Q000503:physiopathology* / Q000534:rehabilitation*; D004562:Electrocardiography; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test; D005081:Exercise Therapy; D005260:Female; D005500:Follow-Up Studies; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D016896:Treatment Outcome