Document Detail


Ventilatory endurance in athletes and non-athletes.
MedLine Citation:
PMID:  7219131     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Do the ventilatory muscles (VM) of normal persons become fatigued while high ventilation is maintained during strenuous exercise? If so, then one effect of the intense training performed by endurance athletes should be an increase in VM endurance. To investigate this possibility, eight female endurance-athletes and eight female non-athletes were compared in studies of both short-term and long-term maximal ventilation. The two groups were matched for age, body size, and vital capacity. While athletes and non-athletes had similar short-term maximal ventilation (12-s MVV), the athletes displayed greater ventilatory endurance on two-long-term breathing tests. In the first, ventilation was increased 30 1/min every 4 min. Before exhaustion, athletes reached a ventilation that was a significantly greater fraction of their 12-s MVV (75% vs 67%, P less than 0.01), than did non-athletes. Although the energy cost (VO2) of submaximal levels of ventilation was identical in the two groups, athletes reached a significantly greater peak VO2 during this progressive test (P less than 0.05). In the second test of ventilatory endurance, 80% of the 12-s MVV was sustained until exhaustion. Endurance times averaged 11 min for athletes and 3 min for non-athletes (P less than 0.01). While these results do not rule out the possibility of genetic predisposition to high VM endurance in athletes, they are consistent with the possibility that VM training may occur in normal persons during forms of endurance exercise training.
Authors:
B J Martin; J M Stager
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  13     ISSN:  0195-9131     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  1981  
Date Detail:
Created Date:  1981-06-25     Completed Date:  1981-06-25     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  21-6     Citation Subset:  IM; S    
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MeSH Terms
Descriptor/Qualifier:
Female
Humans
Lung / physiology
Maximal Voluntary Ventilation
Muscles / physiology
Oxygen Consumption
Physical Endurance*
Physical Exertion
Respiration*
Spirometry / instrumentation,  methods
Sports*
Tidal Volume
Vital Capacity

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


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