title: [Heart rate recovery after exercise in subjects undergoing cardiologic rehabilitation].
abstract: Research indicates that slow heart rate recovery 1-2 minutes after exercise is a predictor of cardiovascular mortality, sudden mortality as well. It is hardly related to myocardial ischemia; most of all, it is related to impaired activities of the parasympathetic system. The purpose of this study was to assess HRR in subjects after a surgical treatment (percutaneous coronary intervention - PCI) of acute coronary syndromes (ACS), undergoing cardiologic rehabilitation.
  
  
  METHODS
  The study comprised 58 subjects, 42 men and 16 women aged 49-68 (56.8 +/- 7.6) after ACS treated with PCI undergoing cardiologic rehabilitation (stage 2)--group I. The comparative group comprised 34 subjects, 25 men and 9 women aged 46-61 (55.5 +/- 8.9 lat) who were clinically healthy and who underwent a single sub-maximal exercise test--group II. In subjects undergoing rehabilitation, an exercise test was performed twice --before and after stage 2 of rehabilitation. HRR was defined as a difference between the peak heart rate and those after the 1st (HRR1) and 2nd (HRR) minute of recovery.
  
  
  RESULTS
  After stationary rehabilitation as a part of stage 2 of cardiologic rehabilitation, HRR2 was 26.3 +/- 10.6/min and was 40.8/min +/- 13.8/min; both these values were not significantly different from values observed in healthy subjects (p > 0.05). Significant increase in HRR1 and HRR2 was observed after the completion of stage 2 of cardiologic rehabilitation in ill subjects (p < 0.05) as compared to initial values.
  
  
  CONCLUSIONS
  In subjects after ACS treated with PCI, it is observed that HRR changes back to normal values observed in healthy subjects as a result of underwent cardiologic rehabilitation. HRR should become an important factor in assessing effectiveness of conducted cardiologic rehabilitation.
authors: Uniwersytet Medyczny w Łodzi, III Katedra Rehabilitacji z Klinika Chorób Wewnetrznych i Rehabilitacji Kardiologicznej. ann.mejer@gmail.com
authors: Anna
authors: A
authors: Mejer
authors: Beata
authors: B
authors: Urzedowicz
authors: Magdalena
authors: M
authors: Rembek-Wieliczko
authors: Marzena
authors: M
authors: Koziróg
authors: Julita
authors: J
authors: Ciećwierz
authors: Jan
authors: J
authors: Kowalski
mesh_terms: D054058:Acute Coronary Syndrome / Q000534:rehabilitation*; D000368:Aged; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D020127:Recovery of Function / Q000502:physiology