A simple multistage field test for the prediction of anaerobic capacity in female games players

S.M. Cooper, J.S. Baker, Z.E. Eaton, N. Matthews

Research output: Contribution to journalArticle

Abstract

Objective

To establish the validity of a 15 m multistage shuttle run test (MSRT) as a predictor of anaerobic capacity (expressed as mean power output (MPO) from the 30 second Wingate anaerobic test (WAnT)) in female university standard games players.

Methods

Data came from three phases using a total of 72 players (mean (SD) age 20.3 (1.5) years, body mass 64.9 (8.8) kg, and stature 1.67 (0.04) m). The repeatability of the MSRT was assessed in phase 1 by applying 95% limits of agreement (LoA) to the test and retest results from a random sample of 20 players. In phase 2, linear relations between MPO and performance on the MSRT were investigated in a random sample of 36 players. As a result, a calibration model (Y  =  a + bX) was developed and cross validated in phase 3, in which the remaining 36 players performed both the WAnT and the MSRT. Time (seconds) to volitional exhaustion/disqualification from the MSRT was substituted into the calibration model from which MPO was predicted. The agreement between MPO predicted and MPO measured from the WAnT was quantified using LoA.

Results

Insignificant bias between repeat applications of the MSRT (meandiff (SDdiff)  =  1.0 (3.5) seconds (4 (14) m), t  =  1.23, p  =  0.230) was found from phase 1. Data were homoscedastic (r  =  0.061, p  =  0.799) with LoA ± 6.9 seconds (± 27 m). In phase 2 the strongest correlation was between MPO (W/kg0.67) and time to volitional exhaustion/disqualification on the MSRT; r  =  0.715 (r2  =  51.1%, p  =  0.0005). As a result, the calibration model developed was: MPO (W/kg0.67)  =  12.5 + (0.2 × time (seconds)) with a standard error of prediction of 2.1 W/kg0.67. The cross validation in phase 3 showed insignificant bias between measured and predicted MPO (meandiff (SDdiff)  =  0.3 (2.8) W/kg0.67, t  =  0.75, p  =  0.460). Data were homoscedastic (r  =  0.05, p  =  0.774) with LoA ± 5.5 W/kg0.67.

Conclusions

The MSRT requires minimal equipment and training of assessors, and it is easy to perform. In the population studied, it provides scores that are repeatable, and anaerobic capacity (MPO) can be successfully predicted from its performance. It would seem therefore to be a useful field based test for use by female games players, their coaches, and support scientists.
Original languageEnglish
Pages (from-to)784-789
Number of pages6
JournalBritish Journal of Sports Medicine
Volume38
Issue number6
DOIs
Publication statusPublished - 1 Dec 2004
Externally publishedYes

Fingerprint

Calibration
Equipment and Supplies
Population
Mentoring

Cite this

@article{1b212d0cce2f4292847327555f7c22f8,
title = "A simple multistage field test for the prediction of anaerobic capacity in female games players",
abstract = "ObjectiveTo establish the validity of a 15 m multistage shuttle run test (MSRT) as a predictor of anaerobic capacity (expressed as mean power output (MPO) from the 30 second Wingate anaerobic test (WAnT)) in female university standard games players.MethodsData came from three phases using a total of 72 players (mean (SD) age 20.3 (1.5) years, body mass 64.9 (8.8) kg, and stature 1.67 (0.04) m). The repeatability of the MSRT was assessed in phase 1 by applying 95{\%} limits of agreement (LoA) to the test and retest results from a random sample of 20 players. In phase 2, linear relations between MPO and performance on the MSRT were investigated in a random sample of 36 players. As a result, a calibration model (Y  =  a + bX) was developed and cross validated in phase 3, in which the remaining 36 players performed both the WAnT and the MSRT. Time (seconds) to volitional exhaustion/disqualification from the MSRT was substituted into the calibration model from which MPO was predicted. The agreement between MPO predicted and MPO measured from the WAnT was quantified using LoA.ResultsInsignificant bias between repeat applications of the MSRT (meandiff (SDdiff)  =  1.0 (3.5) seconds (4 (14) m), t  =  1.23, p  =  0.230) was found from phase 1. Data were homoscedastic (r  =  0.061, p  =  0.799) with LoA ± 6.9 seconds (± 27 m). In phase 2 the strongest correlation was between MPO (W/kg0.67) and time to volitional exhaustion/disqualification on the MSRT; r  =  0.715 (r2  =  51.1{\%}, p  =  0.0005). As a result, the calibration model developed was: MPO (W/kg0.67)  =  12.5 + (0.2 × time (seconds)) with a standard error of prediction of 2.1 W/kg0.67. The cross validation in phase 3 showed insignificant bias between measured and predicted MPO (meandiff (SDdiff)  =  0.3 (2.8) W/kg0.67, t  =  0.75, p  =  0.460). Data were homoscedastic (r  =  0.05, p  =  0.774) with LoA ± 5.5 W/kg0.67.ConclusionsThe MSRT requires minimal equipment and training of assessors, and it is easy to perform. In the population studied, it provides scores that are repeatable, and anaerobic capacity (MPO) can be successfully predicted from its performance. It would seem therefore to be a useful field based test for use by female games players, their coaches, and support scientists.",
author = "S.M. Cooper and J.S. Baker and Z.E. Eaton and N. Matthews",
year = "2004",
month = "12",
day = "1",
doi = "10.1136/bjsm.2004.012229",
language = "English",
volume = "38",
pages = "784--789",
journal = "British Journal of Sports Medicine",
issn = "0306-3674",
publisher = "BMJ Publishing Group",
number = "6",

}

A simple multistage field test for the prediction of anaerobic capacity in female games players. / Cooper, S.M. ; Baker, J.S.; Eaton, Z.E.; Matthews, N.

In: British Journal of Sports Medicine, Vol. 38, No. 6, 01.12.2004, p. 784-789.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A simple multistage field test for the prediction of anaerobic capacity in female games players

AU - Cooper, S.M.

AU - Baker, J.S.

AU - Eaton, Z.E.

AU - Matthews, N.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - ObjectiveTo establish the validity of a 15 m multistage shuttle run test (MSRT) as a predictor of anaerobic capacity (expressed as mean power output (MPO) from the 30 second Wingate anaerobic test (WAnT)) in female university standard games players.MethodsData came from three phases using a total of 72 players (mean (SD) age 20.3 (1.5) years, body mass 64.9 (8.8) kg, and stature 1.67 (0.04) m). The repeatability of the MSRT was assessed in phase 1 by applying 95% limits of agreement (LoA) to the test and retest results from a random sample of 20 players. In phase 2, linear relations between MPO and performance on the MSRT were investigated in a random sample of 36 players. As a result, a calibration model (Y  =  a + bX) was developed and cross validated in phase 3, in which the remaining 36 players performed both the WAnT and the MSRT. Time (seconds) to volitional exhaustion/disqualification from the MSRT was substituted into the calibration model from which MPO was predicted. The agreement between MPO predicted and MPO measured from the WAnT was quantified using LoA.ResultsInsignificant bias between repeat applications of the MSRT (meandiff (SDdiff)  =  1.0 (3.5) seconds (4 (14) m), t  =  1.23, p  =  0.230) was found from phase 1. Data were homoscedastic (r  =  0.061, p  =  0.799) with LoA ± 6.9 seconds (± 27 m). In phase 2 the strongest correlation was between MPO (W/kg0.67) and time to volitional exhaustion/disqualification on the MSRT; r  =  0.715 (r2  =  51.1%, p  =  0.0005). As a result, the calibration model developed was: MPO (W/kg0.67)  =  12.5 + (0.2 × time (seconds)) with a standard error of prediction of 2.1 W/kg0.67. The cross validation in phase 3 showed insignificant bias between measured and predicted MPO (meandiff (SDdiff)  =  0.3 (2.8) W/kg0.67, t  =  0.75, p  =  0.460). Data were homoscedastic (r  =  0.05, p  =  0.774) with LoA ± 5.5 W/kg0.67.ConclusionsThe MSRT requires minimal equipment and training of assessors, and it is easy to perform. In the population studied, it provides scores that are repeatable, and anaerobic capacity (MPO) can be successfully predicted from its performance. It would seem therefore to be a useful field based test for use by female games players, their coaches, and support scientists.

AB - ObjectiveTo establish the validity of a 15 m multistage shuttle run test (MSRT) as a predictor of anaerobic capacity (expressed as mean power output (MPO) from the 30 second Wingate anaerobic test (WAnT)) in female university standard games players.MethodsData came from three phases using a total of 72 players (mean (SD) age 20.3 (1.5) years, body mass 64.9 (8.8) kg, and stature 1.67 (0.04) m). The repeatability of the MSRT was assessed in phase 1 by applying 95% limits of agreement (LoA) to the test and retest results from a random sample of 20 players. In phase 2, linear relations between MPO and performance on the MSRT were investigated in a random sample of 36 players. As a result, a calibration model (Y  =  a + bX) was developed and cross validated in phase 3, in which the remaining 36 players performed both the WAnT and the MSRT. Time (seconds) to volitional exhaustion/disqualification from the MSRT was substituted into the calibration model from which MPO was predicted. The agreement between MPO predicted and MPO measured from the WAnT was quantified using LoA.ResultsInsignificant bias between repeat applications of the MSRT (meandiff (SDdiff)  =  1.0 (3.5) seconds (4 (14) m), t  =  1.23, p  =  0.230) was found from phase 1. Data were homoscedastic (r  =  0.061, p  =  0.799) with LoA ± 6.9 seconds (± 27 m). In phase 2 the strongest correlation was between MPO (W/kg0.67) and time to volitional exhaustion/disqualification on the MSRT; r  =  0.715 (r2  =  51.1%, p  =  0.0005). As a result, the calibration model developed was: MPO (W/kg0.67)  =  12.5 + (0.2 × time (seconds)) with a standard error of prediction of 2.1 W/kg0.67. The cross validation in phase 3 showed insignificant bias between measured and predicted MPO (meandiff (SDdiff)  =  0.3 (2.8) W/kg0.67, t  =  0.75, p  =  0.460). Data were homoscedastic (r  =  0.05, p  =  0.774) with LoA ± 5.5 W/kg0.67.ConclusionsThe MSRT requires minimal equipment and training of assessors, and it is easy to perform. In the population studied, it provides scores that are repeatable, and anaerobic capacity (MPO) can be successfully predicted from its performance. It would seem therefore to be a useful field based test for use by female games players, their coaches, and support scientists.

U2 - 10.1136/bjsm.2004.012229

DO - 10.1136/bjsm.2004.012229

M3 - Article

VL - 38

SP - 784

EP - 789

JO - British Journal of Sports Medicine

JF - British Journal of Sports Medicine

SN - 0306-3674

IS - 6

ER -