2.50
Hdl Handle:
http://hdl.handle.net/2436/39980
Title:
Enhancing the efficacy of the 20 m multistage shuttle run test
Authors:
Flouris, Andreas D.; Metsios, Giorgos S.; Koutedakis, Yiannis
Abstract:
OBJECTIVE: Maximal oxygen uptake (Vo(2max)) of 44 ml kg(-1) min(-1) is an accepted criterion (Vo(2CR)) below which health and fitness for young male adults may be compromised. New algorithms validated for Vo(2CR) screening using the 20 m multistage shuttle run test (20mMST) were developed. METHODS: Vo(2max) was assessed in 110 males using a stationary gas analyser in a treadmill test (TT) and in 40 of these subjects using a portable gas analyser in the 20mMST. Vo(2max) predicted from the 20mMST in 70 subjects was used for cross validation. Two equations predicting Vo(2max) during 20mMST (EQ(MST)) and TT (EQ(TT)) were developed. RESULTS: Significant energy cost variance (EC(V)) was detected between TT and 20mMST (p<0.001), correlated significantly with subject height, and was a significant predictor of Vo(2max) differences between TT and 20mMST. The r(2) of EQ(MST) was 0.92 (p<0.001). Predicted Vo(2max) values from EQ(MST) correlated with directly measured 20mMST Vo(2max) at r = 0.96 (p<0.001). ANOVA detected no mean difference (p>0.05) between predicted and measured values. Prevalence of low fitness based on Vo(2CR) was 0.37. McNemar chi(2) indicated significant differences in sensitivity (p<0.001) and specificity (p<0.05) between the original 20mMST equation (EQ(LEG)) and EQ(TT), regarding Vo(2CR) screening. Cohen's kappa demonstrated higher agreement with TT Vo(2max) for EQ(TT) (p<0.001) than EQ(LEG) (p<0.05). TT Vo(2max) correlated with the end result of both EQ(LEG) and EQ(TT) at r = 0.75 (p<0.001). Unlike EQ(TT) (p>0.05), mean predicted Vo(2max) from EQ(LEG) was significantly higher compared to TT Vo(2max) (p<0.001). CONCLUSION: These algorithms increase the efficacy of 20mMST to accurately evaluate aspects of health and fitness.
Citation:
British Journal of Sports Medicine, 39(3):166-170
Publisher:
BMJ Publishing Group Ltd
Journal:
British Journal of Sports Medicine
Issue Date:
2005
URI:
http://hdl.handle.net/2436/39980
DOI:
10.1136/bjsm.2004.012500
PubMed ID:
15728698
Additional Links:
http://bjsm.bmj.com/
Type:
Article
Language:
en
ISSN:
1473-0480
Appears in Collections:
Sport, Exercise and Health Research Group

Full metadata record

DC FieldValue Language
dc.contributor.authorFlouris, Andreas D.-
dc.contributor.authorMetsios, Giorgos S.-
dc.contributor.authorKoutedakis, Yiannis-
dc.date.accessioned2008-10-30T22:43:00Z-
dc.date.available2008-10-30T22:43:00Z-
dc.date.issued2005-
dc.identifier.citationBritish Journal of Sports Medicine, 39(3):166-170en
dc.identifier.issn1473-0480-
dc.identifier.pmid15728698-
dc.identifier.doi10.1136/bjsm.2004.012500-
dc.identifier.urihttp://hdl.handle.net/2436/39980-
dc.description.abstractOBJECTIVE: Maximal oxygen uptake (Vo(2max)) of 44 ml kg(-1) min(-1) is an accepted criterion (Vo(2CR)) below which health and fitness for young male adults may be compromised. New algorithms validated for Vo(2CR) screening using the 20 m multistage shuttle run test (20mMST) were developed. METHODS: Vo(2max) was assessed in 110 males using a stationary gas analyser in a treadmill test (TT) and in 40 of these subjects using a portable gas analyser in the 20mMST. Vo(2max) predicted from the 20mMST in 70 subjects was used for cross validation. Two equations predicting Vo(2max) during 20mMST (EQ(MST)) and TT (EQ(TT)) were developed. RESULTS: Significant energy cost variance (EC(V)) was detected between TT and 20mMST (p<0.001), correlated significantly with subject height, and was a significant predictor of Vo(2max) differences between TT and 20mMST. The r(2) of EQ(MST) was 0.92 (p<0.001). Predicted Vo(2max) values from EQ(MST) correlated with directly measured 20mMST Vo(2max) at r = 0.96 (p<0.001). ANOVA detected no mean difference (p>0.05) between predicted and measured values. Prevalence of low fitness based on Vo(2CR) was 0.37. McNemar chi(2) indicated significant differences in sensitivity (p<0.001) and specificity (p<0.05) between the original 20mMST equation (EQ(LEG)) and EQ(TT), regarding Vo(2CR) screening. Cohen's kappa demonstrated higher agreement with TT Vo(2max) for EQ(TT) (p<0.001) than EQ(LEG) (p<0.05). TT Vo(2max) correlated with the end result of both EQ(LEG) and EQ(TT) at r = 0.75 (p<0.001). Unlike EQ(TT) (p>0.05), mean predicted Vo(2max) from EQ(LEG) was significantly higher compared to TT Vo(2max) (p<0.001). CONCLUSION: These algorithms increase the efficacy of 20mMST to accurately evaluate aspects of health and fitness.en
dc.language.isoenen
dc.publisherBMJ Publishing Group Ltden
dc.relation.urlhttp://bjsm.bmj.com/en
dc.subjectEnergy costen
dc.subjectMale athletesen
dc.subjectScreeningen
dc.subjectAerobic exerciseen
dc.subjectVo2maxen
dc.subjectSports Medicineen
dc.subject.meshAdulten
dc.subject.meshAnalysis of Varianceen
dc.subject.meshCohort Studiesen
dc.subject.meshEnergy Metabolismen
dc.subject.meshExercise Testen
dc.subject.meshExercise Toleranceen
dc.subject.meshExertionen
dc.subject.meshHumansen
dc.subject.meshMaleen
dc.subject.meshOxygen Consumptionen
dc.subject.meshPhysical Fitnessen
dc.subject.meshRunningen
dc.subject.meshSensitivity and Specificityen
dc.subject.meshSportsen
dc.titleEnhancing the efficacy of the 20 m multistage shuttle run testen
dc.typeArticleen
dc.identifier.journalBritish Journal of Sports Medicineen

Related articles on PubMed

All Items in WIRE are protected by copyright, with all rights reserved, unless otherwise indicated.