Movement velocity can be used to estimate the relative load during the bench press and leg press exercises in older women

PeerJ

Pedro Jiménez-Reyes¹  Amador García-Ramos²  Pablo Jorge Marcos-Pardo³  Abraham López-Vivancos³  Jorge Miguel González-Hernández³ 

[1] Centre for Sports Studies, Rey Juan Carlos University, Alcorcón, Madrid, Spain;Faculty of Sport Sciences, University of Granada, Granada, Spain;Faculty of Sport, Catholic University San Antonio of Murcia, Murcia, Spain;

关键词: Linear position transducer;    Load-velocity profile;    Resistance training;    Velocity-based training;    Older women;   

DOI  :  10.7717/peerj.7533

来源: DOAJ

【 摘 要 】

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 A total 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 MV attained 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.

【 授权许可】

Unknown