| Energy expenditure and cardiorespiratory responses at the transition between walking and running. | |
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MedLine Citation:
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PMID: 7713073 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We investigated whether the spontaneous transition between walking and running during moving with increasing speed corresponds to the speed at which walking becomes less economical than running. Seven active male subjects [mean age, 23.7 (SEM 0.7) years, mean maximal oxygen uptake (VO2max), 57.5 (SEM 3.3) ml.kg-1.min-1, mean ventilatory threshold (VTh), 37.5 (SEM3) ml.kg-1.min-1] participated in this study. Each subject performed four exercise tests separated by 1-week intervals: test 1, VO2max and VTh were determined; test 2, the speed at which the transition between walking and running spontaneously occurs (ST) during increasing speed (increases of 0.5 km.h-1 every 4 min from 5 km.h-1) was determined; test 3, the subjects were constrained to walk for 4 min at ST, at ST +/- 0.5 km.h-1 and at ST +/- 1 km.h-1; and test 4, the subjects were constrained to run for 4 min at ST, at ST +/- 0.5 km.h-1 and at ST +/- 1 km.h-1. During exercise oxygen uptake (VO2), heart rate (HR), ventilation (VE), ventilatory equivalents for oxygen and carbon dioxide (VE/VO2, VE/VCO2), respiratory exchange ratio (R), stride length (SL), and stride frequency (SF) were measured.(ABSTRACT TRUNCATED AT 250 WORDS) |
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Authors:
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J Mercier; D Le Gallais; M Durand; C Goudal; J P Micallef; C Préfaut |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: European journal of applied physiology and occupational physiology Volume: 69 ISSN: 0301-5548 ISO Abbreviation: Eur J Appl Physiol Occup Physiol Publication Date: 1994 |
Date Detail:
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Created Date: 1995-05-16 Completed Date: 1995-05-16 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0410266 Medline TA: Eur J Appl Physiol Occup Physiol Country: GERMANY |
Other Details:
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Languages: eng Pagination: 525-9 Citation Subset: IM |
Affiliation:
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Laboratoire de Physiologie des Interactions, Hôpital Arnaud de Villeneuve, Montpellier, France. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Blood Gas Analysis Blood Pressure Cardiovascular Physiological Phenomena* Energy Metabolism / physiology* Heart Rate Humans Male Oxygen Consumption Respiration / physiology* Respiratory Function Tests Running / physiology* Walking / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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