Changes in deadlift six repetition maximum, countermovement jump performance, barbell velocity, and perceived exertion over the duration of a microcycle

Guppy, S. N., Nagatani, T., Poon, W. C. K., Kendall, K. L., Lake, J. P. and Gregory Haff, G. (2023) Changes in deadlift six repetition maximum, countermovement jump performance, barbell velocity, and perceived exertion over the duration of a microcycle. International Journal of Sports Science & Coaching. pp. 1-21. ISSN 2048-397X

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Abstract

The primary aim of this study was to investigate the stability of the six-repetition maximum (6RM) deadlift over the length of a five-day microcycle and whether the fatigue induced by maximal effort testing detrimentally impacted preparedness. Twelve participants performed four testing sessions, comprising a one-repetition maximum test and three 6RM tests separated by 48 hours. Countermovement jumps were performed before each testing session, and barbell velocity was measured during each warm-up set to assess changes in preparedness. The 6RM deadlift was not statistically different between any of the testing sessions ( p = .056; ηp2 = 0.251). Similarly, there were no significant differences in jump height or other CMJ variables between sessions ( p > .05). There were small to moderate differences in mean barbell velocity between the first and second 6RM test ( g = 0.24–0.88), while there were only small differences in mean velocity (MV) between the second and third 6RM test at some of the warm-up loads (40% 6RM: g = 0.20; 80% 6RM: g = −0.47). Taken collectively, these data indicate that 6RM deadlift strength is stable over five days and does not appear to induce sufficient fatigue to impact vertical jump performance or rating of perceived exertion despite some changes in barbell velocity.

Publication Type: Articles
Additional Information: Guppy, S. N., Nagatani, T. et al. (2023) Changes in deadlift six repetition maximum, countermovement jump performance, barbell velocity, and perceived exertion over the duration of a microcycle. pp.1-10. Copyright © 2023 (Copyright the author(s)). Reprinted by permission of SAGE Publications: https://doi.org/10.1177/17479541231172569
Uncontrolled Keywords: Impulse, rating of perceived exertion, strength tests, velocity-based training, warm-up
Subjects: G Geography. Anthropology. Recreation > GV Recreation Leisure > GV557 Sports
G Geography. Anthropology. Recreation > GV Recreation Leisure > GV557 Sports > GV711 Coaching
Q Science > QM Human anatomy
Q Science > QP Physiology
R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Academic Areas > Institute of Sport > Area > Sports Biomechanics and Sports Therapy
Academic Areas > Institute of Sport > Research Theme > Enhancing Sport Performance
Academic Areas > Institute of Sport > Research Theme > Occupational Performance
Research Entities > Centre for Health and Allied Sport and Exercise Science Research (CHASER)
Related URLs:
SWORD Depositor: Publications Router Jisc
Depositing User: Publications Router Jisc
Date Deposited: 06 Jun 2023 13:11
Last Modified: 10 Jun 2024 08:37
URI: https://eprints.chi.ac.uk/id/eprint/6876

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