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Greater rate of decline in maximal aerobic capacity with age in endurance-trained than in sedentary men.
Full Abstract
To determine the relation between habitual endurance exercise status and the age-associated decline in maximal aerobic capacity [i.e., maximal O(2) consumption (Vo(2 max))] in men, we performed a well-controlled cross-sectional laboratory study on 153 healthy men aged 20-75 yr:
64 sedentary and 89 endurance trained. Vo(2 max) (ml. kg(-1). min(-1)), measured by maximal treadmill exercise, was inversely related to age in the endurance-trained (r = -0.80) and sedentary (r = -0.74) men but was higher in the endurance-trained men at any age. The rate of decline in Vo(2 max) with age (ml. kg(-1). min(-1)) was greater (P < 0.001) in the endurance-trained than in the sedentary men. Whereas the relative rate of decline in Vo(2 max) (percent decrease per decade from baseline levels in young adulthood) was similar in the two groups, the absolute rate of decline in Vo(2 max) was -5.4 and -3.9 ml. kg(-1). min(-). decade(-1) in the endurance-trained and sedentary men, respectively. Vo(2 max) declined linearly across the age range in the sedentary men but was maintained in the endurance-trained men until approximately 50 yr of age. The accelerated decline in Vo(2 max) after 50 yr of age in the endurance-trained men was related to a decline in training volume (r = 0.46, P < 0.0001) and was associated with an increase in 10-km running time (r = -0.84, P < 0.0001). We conclude that the rate of decline in maximal aerobic capacity during middle and older age is greater in endurance-trained men than in their sedentary peers and is associated with a marked decline in O(2) pulse.
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Author information
Author/s: Pimentel, Annemarie E (AE); Gentile, Christopher L (CL); Tanaka, Hirofumi (H); Seals, Douglas R (DR); Gates, Phillip E (PE);
Affiliation: Human Cardiovascular Research Laboratory, Department of Kinesiology and Applied Physiology, University of Colorado, Boulder, Colorado 80309, USA.
Grants: AG-00847 (Agency:United States NIA) ; AG-13038 (Agency:United States NIA) ; HL-07851 (Agency:United States NHLBI)
Journal and publication information
Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.
Journal: Journal of applied physiology (Bethesda, Md. : 1985) (J Appl Physiol), published in United States. (Language: eng)
Reference: 2003-Jun; vol 94 (issue 6) : pp 2406-13
Dates: Created 2003/05/08; Completed 2003/07/23; Revised 2007/11/14;
PMID: 12533496, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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