Document Detail

Effect of low-dose endurance training on heart rate variability at rest and during an incremental maximal exercise test.
MedLine Citation:
PMID:  18587599     Owner:  NLM     Status:  MEDLINE    
We evaluated the effects of low-dose endurance training on autonomic HR control. We assessed the heart rate variability (HRV) of 11 untrained male subjects (36.8 +/- 7.2 years) at rest and during an incremental maximal aerobic exercise test prior to a 7-week preparatory period and prior to and following a 14-week endurance training period, including a low to high intensity exercise session twice a week. Total (0.04-1.2 Hz), low (0.04-0.15 Hz) and high (0.15-1.2 Hz) frequency power of HRV were computed by short-time Fourier transform. The preparatory period induced no change in aerobic power or HRV. The endurance training period increased peak aerobic power by 12% (P < 0.001), decreased the HR (P < 0.01) and increased all HRV indices (P < 0.05-0.01) at absolute submaximal exercise intensities, but not at rest. In conclusion, low-dose endurance training enhanced vagal control during exercise, but did not alter resting vagal HR control.
Kaisu Martinmäki; Keijo Häkkinen; Jussi Mikkola; Heikki Rusko
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-06-28
Journal Detail:
Title:  European journal of applied physiology     Volume:  104     ISSN:  1439-6319     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-09-09     Completed Date:  2008-11-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  541-8     Citation Subset:  IM    
Department of Biology of Physical Activity, University of Jyväskylä, P.O. Box 35 (LL), 40014 Jyväskylä, Finland.
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MeSH Terms
Autonomic Nervous System / physiology*
Catecholamines / blood
Exercise Test*
Fourier Analysis
Heart / innervation*
Heart Rate*
Lactic Acid / blood
Physical Endurance*
Time Factors
Vagus Nerve / physiology
Reg. No./Substance:
0/Catecholamines; 50-21-5/Lactic Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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