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Confiabilidad entre instrumentos (T-Force® y Myotest®) en la valoración de la fuerza. (Inter-machine Reliability (T-Force® y Myotest®) in strength assessment).

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Author(s): Pedro Tomas Gómez-Piriz | Maria Eva Trigo Sánchez | David Cabello Manrique | Esther Puga González

Journal: RICYDE. Revista Internacional de Ciencias del Deporte
ISSN 1885-3137

Volume: 8;
Issue: 27;
Start page: 20;
Date: 2012;
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Keywords: entrenamiento de fuerza | press banca | metrología | resistance training | bench press | metrology.

ABSTRACT
The purpose of this study was to determine the inter-machine reliability of two devices routinely used to measure variables in sports performance: the linear position measuring device (LPM, isoinertial dynamometer T-Force) and the (AC) 3-D accelerometer (Myotest Sport, S4P model). 40 bench press exercises (25 kg) were analysed at concentric contraction phase and at maximum velocity, carried out by three different subjects (age: 26.74 ± 1.2 years, height: 175.74 ± 4.04 cm, weight: 78.7 ± 3.35 kg). Variables analysed comprised maximum velocity, maximum estimated force and estimated peak power. The data from both devices was collected simultaneously. Three simple lineal regression models were developed, supplied by the linear position measuring device (LPM) on the basis of the accelerometer’s (AC) data. The assumption of independence of errors was compared by means of the Durbin-Watson test. Partial autocorrelation coefficients were calculated for a p
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