Reliability and validity of different methods of estimating the one-repetition maximum during the free-weight prone bench pull exercise |
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| Authors: | Amador García-Ramos Paola Barboza-González David Ulloa-Díaz Angela Rodriguez-Perea Darío Martinez-Garcia Francisco Guede-Rojas |
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| Institution: | 1. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain;2. Department of Sports Sciences and Physical Conditioning, Faculty of Education, CIEDE, Catholic University of Most Holy Concepción, Concepción, Chileamagr@ugr.es https://orcid.org/0000-0003-0608-8755;4. Faculty of Education, Universidad Andres Bello, Concepción, Chile;5. Department of Sports Sciences and Physical Conditioning, Faculty of Education, CIEDE, Catholic University of Most Holy Concepción, Concepción, Chilehttps://orcid.org/0000-0003-1288-1397;6. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spainhttps://orcid.org/0000-0001-5155-1337;7. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spainhttps://orcid.org/0000-0003-0077-6813;8. Faculty of Rehabilitation Sciences, Kinesiology, Universidad Andres Bello, Concepción, Chile |
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| Abstract: | ABSTRACTThis study examined the reliability and validity of three methods of estimating the one-repetition maximum (1RM) during the free-weight prone bench pull exercise. Twenty-six men (22 rowers and four weightlifters) performed an incremental loading test until reaching their 1RM, followed by a set of repetitions-to-failure. Eighteen participants were re-tested to conduct the reliability analysis. The 1RM was estimated through the lifts-to-failure equations proposed by Lombardi and O’Connor, general load-velocity (L-V) relationships proposed by Sánchez-Medina and Loturco and the individual L-V relationships modelled using four (multiple-point method) or only two loads (two-point method). The direct method provided the highest reliability (coefficient of variation CV] = 2.45% and intraclass correlation coefficient ICC] = 0.97), followed by the Lombardi’s equation (CV = 3.44% and ICC = 0.94), and no meaningful differences were observed between the remaining methods (CV range = 4.95–6.89% and ICC range = 0.81–0.91). The lifts-to-failure equations overestimated the 1RM (3.43–4.08%), the general L-V relationship proposed by Sánchez-Medina underestimated the 1RM (?3.77%), and no significant differences were observed for the remaining prediction methods (?0.40–0.86%). The individual L-V relationship could be recommended as the most accurate method for predicting the 1RM during the free-weight prone bench pull exercise. |
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| Keywords: | Lift-to-failure equations linear position transducer load-velocity relationship resistance training velocity-based training |
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![ORCID Icon]({"type":"image","src":"/templates/jsp/images/orcid.png"} "ORCID Icon")
https://orcid.org/0000-0003-0608-8755;4. Faculty of Education, Universidad Andres Bello, Concepción, Chile;5. Department of Sports Sciences and Physical Conditioning, Faculty of Education, CIEDE, Catholic University of Most Holy Concepción, Concepción, Chile