Autonomic nervous function at rest in aerobically trained and untrained oldermen
- 12 June 1997
- journal article
- research article
- Published by Wiley in Clinical Physiology and Functional Imaging
- Vol. 17 (4) , 339-346
- https://doi.org/10.1046/j.1365-2281.1997.03838.x
Abstract
Therelationship between aerobictraining, vagal influence on the heart and ageing was examined by assessing aerobic fitness andresting heart rate variability in trained and untrained older men. Subjects were 11 trained cyclistsand runners (mean age=6±61·6 years) and 11 untrained, age-matchedmen (mean age=66±1·2 years). Heart rate variability testing involvedsubjects lying supine for 25 min during which subjects’ breathing was paced andmonitored (7·5 breaths min−1). Heart rate variability was assessedthrough time series analysis (HRVts) of the interbeat interval. Results indicated thattrained older men (3·55±0·21 l min−1) hadsignificantly (PVO2maxthan that of control subjects (2·35±0·15 l min−1).Also, trained older men (52±1·8 beats min−1) hadsignificantly (P−1). HRVts at highfrequencies was greater for trained men (5·98±0·22) than for untrainedmen (5·23±0·32). These data suggest that regular aerobic exercise inolder men is associated with greater levels of HRVts at rest.Keywords
This publication has 0 references indexed in Scilit: