Publication
Title
Electrical support during outdoor cycling in patients with coronary artery disease: impact on exercise intensity, volume and perception of effort
Author
Abstract
Background: Electrical assisted bicycles (EAB's) could be used to overcome barriers and difficulties to outdoor cycling and thus assist in achieving a sufficient physical activity level in coronary artery disease (CAD) patients, but it is unknown whether sufficient exercise intensities and volumes could be elicited during cycling on EAB's. In this study we examined, for the first time, the acute physiological impact of electrical support during outdoor cycling in CAD patients (ISRCTN32238279). Methods: Fifteen CAD patients (13 males), aged 647 years executed a maximal cardiopulmonary exercise test and afterwards cycled a predefined outdoor route of 10km, in three different conditions: classical cycling (no support), EAB with low support (EAB(low)) and high support (EAB(high)). Oxygen uptake (VO2) and carbon dioxide output (VCO2) was measured continuously by a portable gas-analysing system. Cycling time was recorded and ratings of perceived exertion (RPE) was assessed at 3 and 7km. Results: Mean VO2 during EAB(high) (1721 +/- 537ml.min(-1)) was significantly lower compared to EAB(low) (1890 +/- 619ml.min(-1), p < .05), but no differences were found between EAB(low) and classical cycling (1846 +/- 523ml.min(-1)). EAB(low) and EAB(high) elicited a sufficient volume and intensity (6.6 +/- 2.0 MET's (74 +/- 6% VO2peak) and 6.0 +/- 1.8 MET's (68 +/- 7% VO2peak), respectively) to adhere to the guidelines for secondary prevention in CAD. RPE was significantly lower p < .05) during EAB(high) (9 +/- 2), than during EAB(low) (11 +/- 2) or classical cycling (11 +/- 2). Conclusions: Outdoor cycling with electrical support leads to a sufficiently high exercise intensity and volume in CAD patients, and may be considered as an alternative exercise modality.
Language
English
Source (journal)
Acta cardiologica. - Bruxelles
Publication
Bruxelles : 2018
ISSN
0001-5385
Volume/pages
73:4(2018), p. 343-350
ISI
000443837100005
Pubmed ID
29017395
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 08.10.2018
Last edited 15.07.2021
To cite this reference