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Cross-validation of Two 20 meter Shuttle Run Tests for Predicting VO2max in Female Collegiate Soccer Players: Predicting VO2max Female Soccer Players.
MedLine Citation:
PMID:  22964858     Owner:  NLM     Status:  Publisher    
ABSTRACT: The aim of this study was twofold: 1) to compare the maximal attained speeds (MAS) from the 20-meter shuttle (MST) and 20-meter square-shuttle (SST) tests and; 2) to cross-validate two equations for predicting maximal oxygen consumption (VO2max) that were previously developed from MST and SST in a group of female collegiate soccer players. Thirty-nine subjects (age: 20.1 ± 1.5 y) participated in the study. A maximal graded exercise treadmill test was used to measure VO2max. In addition, VO2max was predicted from the MAS obtained during MST (predVO2maxMST) and SST (predVO2maxSST) using previously developed equations. Measured VO2max for the group was 44.2 ± 3.3 The MAS was 12.5 ± 0.6 for MST and 13.3 ± 0.8 for SST (p < 0.05). The prediction methods yielded a predVO2maxMST of 49.6 ± 3.9 and predVO2maxSST of 41.8 ± 3.1, which were significantly different from measured VO2max (p < 0.05). The validity statistics revealed the following constant error (CE), correlation coefficient (r), standard error of estimate (SEE), and total error (TE) for predVO2maxMST and predVO2maxSST: CE = 5.35 ± 3.83, r = 0.45 (p < 0.05), SEE = 2.97, TE = 6.39; and CE = -2.43 ± 2.49, r = 0.69 (p < 0.05), SEE = 2.39 1min-1, TE = 3.43; respectively. Residual plots indicated no proportional bias for either prediction model. The results of this study suggests that female collegiate soccer players had a higher MAS from SST compared to MST. In addition, SST appeared to be a more accurate predictor of VO2max than MST in the group of athletes.
Michael S Green; Michael R Esco; Tyler D Martin; Robert Pritchett; Aindrea N McHugh; Henry N Williford
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-7
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  -     ISSN:  1533-4287     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
1Department of Kinesiology and Health Promotion, Troy University, Troy, Alabama 36082 2Department of Physical Education and Exercise Science - Human Performance Laboratory, Auburn University at Montgomery, Montgomery, Alabama 36124 3Department of Nutrition, Exercise, and Health Sciences, Central Washington University, Ellensburg, Washington 98926.
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