| The effect of shuttle test protocol and the resulting lactacidaemia on maximal velocity and maximal oxygen uptake during the shuttle exercise test. | |
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MedLine Citation:
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PMID: 1425656 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to investigate the influence of the shuttle test protocol (20-MST) and the resulting lactacidaemia on maximal velocity (Vmax) and maximal oxygen uptake (VO2max). Firstly, three randomly assigned tests to exhaustion were performed by 12 subjects: the treadmill test, the 20-MST, and a continuous running track test using the same prerecorded 1-min protocol as in the 20-MST (T1). One week later, subjects performed another track test, which was conducted up to the same level of effort as attained during the 20-MST (T2). For each test, Vmax, VO2max, lactate concentration at rest and during recovery, maximal heart rate, and distance covered were determined. The results indicated that the 20-MST underestimated Vmax; only T1 satisfactorily assessed Vmax (F = 15.49, P < 0.001). At the same level of effort, the peak blood lactate concentration (t = 2.7, P < 0.02) and VO2max (t = 11.35, P < 0.001) values were higher for the shuttle than for the continuous protocol. It was concluded that Vmax was limited by the running backwards and forwards in the protocol of the shuttle test. The higher values of peak blood lactate concentration and its earlier appearance obtained for the shuttle may have been one of the limiting factors of Vmax. However, the higher values of VO2max obtained for the 20-MST were most likely due to a combination of the relative hyperlactacidaemia and the biomechanical complexities required for this type of protocol. |
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Authors:
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S Ahmaidi; K Collomp; C Préfaut |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: European journal of applied physiology and occupational physiology Volume: 65 ISSN: 0301-5548 ISO Abbreviation: Eur J Appl Physiol Occup Physiol Publication Date: 1992 |
Date Detail:
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Created Date: 1992-12-04 Completed Date: 1992-12-04 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: 475-9 Citation Subset: IM |
Affiliation:
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Laboratoire d'Exploration Fonctionnelle Respiratoire, Hôpital Aiguelongue, Montpellier, France. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Exercise Test* Female Humans Lactates / blood* Lactic Acid Oxygen Consumption* Physical Exertion / physiology* Running* |
| Chemical | |
Reg. No./Substance:
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0/Lactates; 50-21-5/Lactic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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