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Single-leg Wingate Test in children: reliability and optimal braking force.
H Hebestreit1, D Dunstheimer, B Staschen
1Universität-Kinderklinik, Würzburg, Germany. KINK085@MAIL.UNI-WUERZBURG.DE
Medicine and Science in Sports and Exercise
|August 17, 1999
Summary
The single-leg Wingate Test (SLWAnT) is a reliable method for assessing unilateral leg power. An equation is provided to estimate the optimal braking force for this test across different age groups.
Area of Science:
- Sports Science
- Physiology
- Biomechanics
Background:
- The single-leg Wingate Test (SLWAnT) is utilized for evaluating unilateral muscle power and leg dominance.
- Assessing the reliability and optimizing the protocol of the SLWAnT are crucial for its accurate application.
Purpose of the Study:
- To determine the reliability of the single-leg Wingate Test (SLWAnT).
- To establish the optimal braking force for the SLWAnT across various age and maturity groups.
Main Methods:
- Twenty female and 19 male subjects across prepubertal, midpubertal, and postpubertal stages participated.
- Subjects underwent repeated SLWAnT sessions over three visits to assess reliability and determine optimal braking force.
- Braking force was systematically varied to identify the setting yielding maximal 30-second performance.
Main Results:
- High intraclass correlation coefficients (0.89–0.98) indicated excellent reliability for peak power and total work.
- An equation (0.4052 x body mass^1.4662) was derived to estimate optimal braking force, applicable across genders and maturity levels.
- The standard error of estimate for optimal braking force varied by maturity, being lowest in prepubertals and highest in postpubertals.
Conclusions:
- The SLWAnT demonstrates high reliability for measuring single-leg power.
- The derived equation offers a reliable method for estimating optimal braking force.
- SLWAnT is a valuable tool for monitoring single-leg power changes and assessing leg dominance.