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Validation of rate of perceived exertion-based exercise training in patients with heart failure: insights from autonomic nervous system adaptations.
- Source :
-
International journal of cardiology [Int J Cardiol] 2014 Sep 20; Vol. 176 (2), pp. 394-8. Date of Electronic Publication: 2014 Aug 01. - Publication Year :
- 2014
-
Abstract
- Background: Exercise prescription in cardiac patients is based on heart rate (HR) response to exercise. How to prescribe long-term exercise training outside medically-supervised settings also considering changes in individual physical capacity over time is unknown. In this study we hypothesized that in patients with chronic heart failure (CHF) the session-rate of perceived exertion (RPE), a subjective-based training methodology, provides autonomic and functional capacity changes superimposable to those observed with HR-based Training Impulses (TRIMPi) method.<br />Methods: Twenty patients with stable CHF were randomized to either aerobic continuous training (ACT) or aerobic interval training (AIT) for 12 weeks. For each TRIMPi-guided exercise session, the session-RPE was recorded. By this method, internal training load (TL) is quantified by multiplying the RPE of the whole training session, using the Borg CR10-scale, by its duration. Heart rate variability (HRV), and baroreflex sensitivity (BRS) were assessed at baseline and at 3 weeks intervals.<br />Results: Significant correlations were found between TRIMPi and individual session-RPE, for both ACT and AIT (r=0.63 to 0.81), (P<0.05). The same occurred when ACT and AIT groups were pooled together (r=0.72; P<0.01). R-R interval, HRV and BRS were significantly and very highly correlated with weekly RPE-session (r(2) ranged from 0.77 to 0.97; P<0.001). A significant relationship between session-RPE and performance at the 6MWT was also found.<br />Conclusions: Session-RPE is an easy-to-use, inexpensive and valid method for exercise prescription and health maintenance, consistent with objective physiological indices of training, that could be used for long-term physical activity in patients with CHF.<br /> (Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.)
- Subjects :
- Aged
Autonomic Nervous System physiology
Exercise psychology
Heart Failure diagnosis
Heart Failure psychology
Humans
Male
Middle Aged
Perception physiology
Adaptation, Physiological physiology
Baroreflex physiology
Exercise physiology
Heart Failure therapy
Heart Rate physiology
Physical Exertion physiology
Subjects
Details
- Language :
- English
- ISSN :
- 1874-1754
- Volume :
- 176
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- International journal of cardiology
- Publication Type :
- Academic Journal
- Accession number :
- 25129282
- Full Text :
- https://doi.org/10.1016/j.ijcard.2014.07.076