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Article Abstract
Background/purpose: Monitoring intensity during elastic resistance training in velocity-based training (VBT) is challenging in clinical and field settings due to the lack of validated, practical tools. This study aimed to determine whether the OMNI-Resistance Exercise Scale for elastic bands (OMNI-RES EB) is an appropriate tool for monitoring exercise intensity during squats performed at maximal intended velocity and with a 10% velocity loss during elastic resistance training within a VBT framework.
Study Type: Quasi-experimental cohort study.
Methods: Twenty-four physically active individuals (8 women, 16 men; 23.54±3.18 years; 23.47±2.37 kg/m²; body fat %: 14.11±5.29%; 1RM: 102.73±26.16 kg) completed two sessions of four sets of squats (40%, 55%, 70%, 85%, 100% 1RM, random order) using EB. Participants were specifically instructed to perform each repetition at their maximum intended velocity. Sets were stopped at 10% velocity loss. Mean propulsive velocity (MPV) was measured during the first and last repetitions using a linear velocity transducer. Rating of perceived exertion (RPE) obtained from the OMNI-RES EB was recorded immediately after the first and last repetitions. Load, heart rate, and repetitions were recorded at each set's end. Outcome measures were analyzed by sex, physical activity level, and relative strength. Effect sizes were calculated, and internal consistency was also explored.
Results: All concurrent variables, including RPE, varied significantly among %1RM. Physical activity and sex did not influence RPE. Significant differences in first-repetition RPE were found at 55%, 85%, and 100% 1RM between normal and high relative strength participants. Internal consistency analysis showed good to excellent relative reliability and acceptable absolute reliability. The MPV-RPE correlation was r = -0.76.
Conclusion: First-repetition RPE using the OMNI-RES EB is a reliable, cost-effective method for monitoring velocity-based training with EB, comparable to linear velocity transducers.
Level Of Evidence: 3b.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12317796 | PMC |
| http://dx.doi.org/10.26603/001c.142236 | DOI Listing |
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