Artículos de revistas
Movement velocity can be used to estimate the relative load during the bench press and leg press exercises in older women
Registro en:
PEERJ, Volumen: 7 Número de artículo: e7533, 2019, p1-14
2167-8359
10.7717/peerj.7533
Autor
Marcos Pardo, Pablo Jorge
González Hernández, Jorge Miguel
García Ramos, Amador
López Vivancos, Abraham
Jiménez Reyes, Pedro
Resumen
Artículo de publicación ISI Background: Movement velocity has been proposed as an effective tool to prescribe the load during resistance training in young healthy adults. This study aimed to elucidate whether movement velocity could also be used to estimate the relative load (i.e., % of the one-repetition maximum (1RM)) in older women. Methods: Atotal of 22 older women (age = 68.2 ± 3.6 years, bench press 1RM = 22.3 ± 4.7 kg, leg press 1RM = 114.6 ± 15.9 kg) performed an incremental loading test during the free-weight bench press and the leg press exercises on two separate sessions. The mean velocity (MV) was collected with a linear position transducer. Results: A strong linear relationship between MV and the relative load was observed for the bench press (%1RM = -130.4 MV + 119.3; r2 = 0.827, standard error of the estimate (SEE) = 6.10%1RM, p < 0.001) and leg press exercises (%1RM = -158.3 MV + 131.4; r2 = 0.913, SEE = 5.63%1RM,p < 0.001). No significant differences were observed between the bench press and leg press exercises for the MVattained against light-medium relative loads ( 70%1RM), while the MV associated with heavy loads ( 80%1RM) was significantly higher for the leg press. Conclusions: These results suggest that the monitoring of MV could be useful to prescribe the loads during resistance training in older women. However, it should be noted that the MV associated with a given %1RM is significantly lower in older women compared to young healthy individuals.