@misc{10481/105025,
year = {2024},
month = {12},
url = {https://hdl.handle.net/10481/105025},
abstract = {This study investigated the between-session variability and concurrent validity of the relative load-velocity relationship obtained from different methods during the free-weight back squat. In counterbalanced order, 39 resistance-trained male participants performed two sessions with six different loads (i.e., a multiple-point test) and two sessions with two different loads (i.e., a 2-point test) followed by the actual one-repetition maximum (1RM) attempts. The mean velocity (MV) corresponding to various %1RMs (at every 5% interval from 40 to 90%1RM) was determined through individualized linear regression models using three methods: (i) multiple-point: data of ~40, 50, 60, 70, 80, and 90%1RM from the multiple-point test, (ii) non-field 2-point: data of the lightest and heaviest loads from the multiple-point test, and (iii) field 2-point: data of ~40 and 90%1RM from the 2-point test. The main findings revealed that the between-session variability of the MVs derived from the %1RM-MV relationships was low (absolute differences = 0.02‒0.03 m·s−1) and similar (p = 0.074‒0.866) across the three methods. Additionally, when compared to the multiple-point method, both the non-field and field 2-point methods showed high correlations (pooled r across all %1RMs = 0.95 ± 0.01 and 0.72 ± 0.09, respectively) and small systematic biases (ranging from −0.01 to 0.01 m·s−1). Therefore, we recommend that strength and conditioning practitioners use the %1RM-MV relationship, modeled by the field 2-point method, as a quicker and fatigue-free procedure for prescribing the relative load during the free-weight back squat. Specifically, a light load near 40%1RM and a heavy load near 90%1RM are suggested for this method.},
organization = {South China Normal University},
organization = {Beijing Yanding Huachuang Sports Development Co., Ltd.},
publisher = {Academy of Physical Education in Katowice (Poland)},
keywords = {Exercise intensity},
keywords = {Velocity-based training},
keywords = {Field conditions},
title = {Evaluating the Field 2-Point Method for the Relative Load-Velocity Relationship Monitoring in Free-Weight Back Squats},
doi = {10.5114/jhk/193975},
author = {Cheng, Zongwei and Zhang, Xiuli and García Ramos, Amador},
}