Title

Speed, Force, And Power Values Produced From Nonmotorized Treadmill Test Are Related To Sprinting Performance

Keywords

Cross-validation; Sprint assessment; Validity; Vertical jump

Abstract

The relationships between 30-m sprint time and performance on a nonmotorized treadmill (TM) test and a vertical jump test were determined in this investigation. Seventy-eight physically active men and women (22.9 62.7 years; 73.0 ± 14.7 kg; 170.7 ± 10.4 cm) performed a 30-second maximal sprint on the curve nonmotorized TM after 1 familiarization trial. Pearson product-moment correlation coefficients produced significant (p ≤ 0.05) moderate to very strong relationships between 30-m sprint time and body mass (r = 20.37), %fat (r = 0.79), peak power (PP) (r = 20.59), relative PP (r = 20.42), time to peak velocity (r = 20.23) and TM sprint times at 10 m (r = 0.48), 20 m (r = 0.59), 30 m (r = 0.67), 40 m (r = 0.71), and 50 m (r = 0.75). Strong relationships between 30-m sprint time and peak (r = 20.479) and mean vertical jump power (r = 20.559) were also observed. Subsequently, stepwise regression was used to produce two 30-m sprint time prediction models from TM performance (TM1: body mass + TM data and TM2: body composition + TM data) in a validation group (n = 39), and then crossvalidated against another group (n = 39). As no significant differences were observed between these groups, data were combined (n = 72) and used to create the final prediction models (TM1: r 2 = 0.75, standard error of the estimate (SEE) = 0.27 seconds; TM2: r2 = 0.84, SEE = 0.22 seconds). These final movementspecific models seem to be more accurate in predicting 30-m sprint time than derived peak (r2 = 0.23, SEE = 0.48 seconds) and mean vertical jump power (r2 = 0.31, SEE = 0.45 seconds) equations. Consequently, sprinting performance on the TM can significantly predict short-distance sprint time. It, therefore, may be used to obtain movement-specific measures of sprinting force, velocity, and power in a controlled environment from a single 30-second maximal sprinting test. © 2014 National Strength and Conditioning Association.

Publication Date

1-1-2014

Publication Title

Journal of Strength and Conditioning Research

Volume

28

Issue

7

Number of Pages

1812-1819

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1519/JSC.0000000000000316

Socpus ID

84905968293 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84905968293

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