[Heart rate recovery after exercise in subjects undergoing cardiologic rehabilitation].

Abstract

UNLABELLED:

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.

MATERIALS AND 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: Anna Mejer, Beata Urzedowicz, Magdalena Rembek-Wieliczko, Marzena Koziróg, Julita Ciećwierz, Jan Kowalski
• Journal: Polski merkuriusz lekarski : organ Polskiego Towarzystwa Lekarskiego (Pol Merkur Lekarski) Vol. 33 Issue 198 Pg. 313-6 (Dec 2012) ISSN: 1426-9686 [Print] Poland
• Vernacular Title: Szybkość normalizacji czestości rytmu serca po wysiłku u osób poddanych rehabilitacjti kardiologicznej.
• PMID: 23437698 (Publication Type: Controlled Clinical Trial, English Abstract, Journal Article)

Topics

• Acute Coronary Syndrome (rehabilitation)
• Aged
• Exercise (physiology)
• Exercise Test
• Female
• Heart Rate (physiology)
• Humans
• Male
• Middle Aged
• Recovery of Function (physiology)