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Fernandes, JFT, Dingley, AF, Garcia-Ramos, A, Perez-Castilla, A, Tufano, JJ and Twist, C (2021) Prediction of one repetition maximum using reference minimum velocity threshold values in young and middle-aged resistance-trained males. Behavioral Sciences, 11 (5). ISSN 2076-328X
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Prediction of One Repetition Maximum Using Reference Minimum Velocity Threshold Values in Young and Middle-Aged Resistance-T.pdf - Published Version Available under License Creative Commons Attribution. Download (1MB) | Preview |
Abstract
Background: This study determined the accuracy of different velocity-based methods when predicting one-repetition maximum (1RM) in young and middle-aged resistance-trained males. Methods: Two days after maximal strength testing, 20 young (age 21.0 ± 1.6 years) and 20 middle-aged (age 42.6 ± 6.7 years) resistance-trained males completed three repetitions of bench press, back squat, and bent-over-row at loads corresponding to 20–80% 1RM. Using reference minimum velocity threshold (MVT) values, the 1RM was estimated from the load-velocity relationships through multiple (20, 30, 40, 50, 60, 70, and 80% 1RM), two-point (20 and 80% 1RM), high-load (60 and 80% 1RM) and low-load (20 and 40% 1RM) methods for each group. Results: Despite most prediction methods demonstrating acceptable correlations (r = 0.55 to 0.96), the absolute errors for young and middle-aged groups were generally moderate to high for bench press (absolute errors = 8.2 to 14.2% and 8.6 to 20.4%, respectively) and bent-over-row (absolute error = 14.9 to 19.9% and 8.6 to 18.2%, respectively). For squats, the absolute errors were lower in the young group (5.7 to 13.4%) than the middle-aged group (13.2 to 17.0%) but still unacceptable. Conclusion: These findings suggest that reference MVTs cannot accurately predict the 1RM in these populations. Therefore, practitioners need to directly assess 1RM.
| Item Type: | Article |
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| Uncontrolled Keywords: | aging; bench press; bent-over-row; linear position transducer; maximal strength; squat; velocity-based training; 1701 Psychology; 1702 Cognitive Sciences |
| Subjects: | R Medicine > RC Internal medicine > RC1200 Sports Medicine |
| Divisions: | Sport & Exercise Sciences |
| Publisher: | MDPI AG |
| SWORD Depositor: | A Symplectic |
| Date Deposited: | 18 May 2023 10:13 |
| Last Modified: | 18 May 2023 10:15 |
| DOI or ID number: | 10.3390/bs11050071 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/19519 |
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