The influence of physical activity levels on lactate production during squat training using a functional electromechanical dynamometer

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dc.contributor.authordel-Cuerpo, Indya
dc.contributor.authorJerez-Mayorga, Daniel
dc.contributor.authorChirosa-Ríos, Luis Javier
dc.contributor.authorCaamaño-Navarrete, Felipe
dc.contributor.authorDelgado-Floody, Pedro
dc.date.accessioned2025-06-04T16:49:39Z
dc.date.available2025-06-04T16:49:39Z
dc.date.issued2025
dc.descriptionIndexación: Scopus.
dc.description.abstractObjective. This study aimed to determine the association between changes in lactate production and levels of physical activity in a group of healthy young adults in response to two squat training protocols. Material and methods. Twenty-nine students majoring in Sports Science willingly participated in this study. Participants visited the lab four times within a two-week period, ensuring at least 48 h between visits. In each session, they completed three sets of 12 repetitions at 75% 1RM and three sets of 30 repetitions at 50% of maximum strength, with the order of protocols being randomized. Results. In the regression analysis, there was a significant positive association between lactate delta changes immediately post-squat at 50% of maximum strength at session 2 with the variable ‘‘sex: women’’ (β: 3.02, 95% CI [−0.18–0.30], p = 0.047) and BMI (kg/m2). Age exhibited a positive association (β: 0.19, 95% CI [0.02–0.36], p = 0.032) with lactate delta changes immediately post-squat at 75% of maximum strength at session 2. There was also a significant inverse association between lactate delta changes at 10 min post-squat test exercise at 75% of maximum strength at session 1 and 2, and vigorous physical activity (−0.01, 95% CI [−0.02–0.00], p = 0.046). Conclusion. In summary, this study provides valuable insights into the association between lactate production and physical activity levels in young, healthy adults undergoing different squat training protocols. These findings suggest that intense physical activity may be associated with lower lactate production, indicating greater metabolic efficiency. In addition, sex differences in metabolic responses were observed, emphasizing the importance of personalized approaches in program design. Copyright 2025 del-Cuerpo et al.
dc.description.accesoabiertoSI
dc.description.agradThis article will be part of Indya del-Cuerpo\u2019s doctoral thesis performed in the Biomedicine Doctorate Program of the University of Granada. The postdoctoral researcher Pedro Delgado-Floody has a contract through the programme \u2018\u2018Recualificaci\u00F3n del Profesorado Universitario. Modalidad Mar\u00EDa Zambrano\u2019\u2019, Universidad de Granada/Ministerio de Universidades y Fondos Next Generation de la Uni\u00F3n Europea and Daniel Jerez-Mayorga has a contract through the programme \u2018\u2018Recualificaci\u00F3n del Profesorado Universitario. Modalidad Margarita Salas\u2019\u2019, Universidad de Granada/Ministerio de Universidades y Fondos Next Generation de la Uni\u00F3n Europea. This work was supported by Spanish Ministry of Universities (FPU19/02030), and the High Council for Sports (CSD); Spanish Ministry of Culture and Sports (09/UPB/23), and the project DIE22-0007, Universidad de Granada. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The following grant information was disclosed by the authors: Recualificaci\u00F3n del Profesorado Universitario. Modalidad Mar\u00EDa Zambrano. Recualificaci\u00F3n del Profesorado Universitario. Modalidad Margarita Salas. Universidad de Granada/Ministerio de Universidades y Fondos Next Generation de la Uni\u00F3n Europea. Spanish Ministry of Universities: FPU19/02030. High Council for Sports (CSD). Spanish Ministry of Culture and Sports: 09/UPB/23. Consejer\u00EDa de Universidad, Investigaci\u00F3n e Innovaci\u00F3n and by ERDF Andalusia Program 2021-2027: A.SEJ.227.UGR23.
dc.description.urihttps://peerj.com/articles/18215/
dc.identifier.doi10.7717/peerj.18215
dc.identifier.generoM
dc.identifier.issn21678359
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/65082
dc.language.isoen_US
dc.other.orcidhttps://orcid.org/0000-0002-6878-8004
dc.publisherPeerJ, Volume 13, Issue 12025 Article number e18215
dc.rights.licenseAtribución/Reconocimiento 4.0 Internacional CC BY 4.0 Deed
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectFunctional electromechanical dynamometry
dc.subjectLactate production
dc.subjectMetabolic efficiency
dc.subjectPhysical activity
dc.subjectlactic acid
dc.subjectadult
dc.subjectaerobic exercise
dc.subjectanthropometry
dc.subjectArticle
dc.subjectbody composition
dc.subjectbody weight
dc.subjectdynamometry
dc.subjectfemale
dc.subjectheart rate
dc.subjecthuman
dc.titleThe influence of physical activity levels on lactate production during squat training using a functional electromechanical dynamometer
dc.typeArtículo
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