Document Detail

Peak cardiac power output in healthy, trained men.
MedLine Citation:
PMID:  20718806     Owner:  NLM     Status:  In-Process    
Previous investigations into peak cardiac power output (CPO peak) have been limited to clinical populations and healthy, but non-athletic adults, and normative data on trained individuals would allow a greater understanding of this parameter. Therefore, we recruited eight healthy, well-trained male cyclists. Peak oxygen consumption ((.)VO₂ peak) was assessed using an incremental ergometer test, and following a 40-min recovery period, peak cardiac output ((.)QT peak) was measured during a constant load test that elicited (.)VO₂ peak (±5%) using the Defares CO₂ rebreathing technique. CPO peak was calculated as described by Cooke et al. (1998). Mean (±SD) values during the constant load test were: (.)VO₂ peak, 4.94 ± 0.41 l min⁻¹; (.)QT peak, 36.5 ± 3.7 l min⁻¹; mean arterial pressure, 123 ± 8 mmHg and CPO peak, 9.9 ± 1.0 W. These results demonstrate CPO peak in a well-trained population to be approximately twice those observed in healthy, but non-athletic adults. The current data provide useful information regarding the upper limits and possible 'trainability' of cardiac pumping capacity for sedentary and clinically compromised individuals.
Zachary J Schlader; Toby Mündel; Matthew J Barnes; Lynette D Hodges
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical physiology and functional imaging     Volume:  30     ISSN:  1475-097X     ISO Abbreviation:  Clin Physiol Funct Imaging     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137604     Medline TA:  Clin Physiol Funct Imaging     Country:  England    
Other Details:
Languages:  eng     Pagination:  480-4     Citation Subset:  IM    
Division of Exercise and Sports Science, Institute of Food, Nutrition and Human Health, Massey University, Palmerston North, New Zealand.
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