Repositorio
Institucional

Perez-Castilla, Alejandro

Garcia-Ramos, Amador

Gijon-Nieto, Luis Miguel

Marcos-Blanco, Aitor

Garcia-Pinillos, Felipe

Reliability and concurrent validity of the PUSH Band (TM) 2.0 to measure barbell velocity during the free-weight and Smith machine squat exercises

SAGE PUBLICATIONS LTD

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART P-JOURNAL OF SPORTS ENGINEERING AND TECHNOLOGY

en

The aim of this study was to examine the test-retest reliability and concurrent validity of the PUSH Band (TM) 2.0 to measure barbell's velocity during unconstrained (free-weights) and constrained (Smith machine) squat exercises. After an initial assessment of the Smith machine squat one-repetition maximum (1RM), 24 resistance-trained males completed one or two testing sessions separated by 7 days. In one session, the squat was performed with free-weights (n = 22), while in another session, the Smith machine was used (n = 16). Both testing sessions consisted of two blocks of eight repetitions (three repetitions at 45%1RM, three repetitions at 65%1RM, and two repetitions at 85%1RM). The mean velocity of the lifting phase was simultaneously recorded with the PUSH Band (TM) 2.0 and a gold-standard linear velocity transducer (T-Force(R) System). The PUSH Band (TM) 2.0 generally revealed an acceptable reliability (CVrange = 5.81%-13.14%), but the reliability was always greater for the T-Force(R) System (CVrange = 2.95%-7.86%). Regardless of the squat exercise, the concurrent validity of the PUSH Band (TM) 2.0 with respect to the T-Force(R) System was generally low at 45%1RM (ESrange = 0.18-0.33, r(range) = 0.58-0.75, SEErange = 0.04-0.05 ms(-1) and 4.2%-6.0%), 65%1RM (ESrange = 0.26-0.44, r(range) = 0.63-0.82, SEErange = 0.04-0.06 ms(-1) and 6.0%-9.2%), and 85%1RM (ESrange = 0.61-0.64, r(range) = 0.66-0.82, SEErange = 0.05-0.07 ms(-1) and 11.4%-16.0%). Taken together, these results suggest that the PUSH Band (TM) 2.0 is a reliable, but not valid, wearable technology to measure the barbell velocity during the free-weight and Smith machine squat exercises.

artículo original

10.1177/17543371211024018

PDF

Inertial measurement units

linear position transducer

sport technology

strength training

velocity-based training

MEASURE MOVEMENT VELOCITY

MAXIMUM

Ingeniería Mecánica

Ciencias del Deporte

Unidades de medida inercial

transductor de posición lineal

tecnología deportiva

entrenamiento de fuerza

entrenamiento basado en la velocidad

MEDIR VELOCIDAD DE MOVIMIENTO

MÁXIMO

Ciencias del Deporte y Acondicionamiento Físico

Tecnología Médica

Otras Ingenierías y Tecnologías

Reliability and concurrent validity of the PUSH Band (TM) 2.0 to measure barbell velocity during the free-weight and Smith machine squat exercises

351

359

artículo original

version publicada

0

metadata

metadata

WOS:000672086400001