The “personal record” estimates strength endurance performance in the Clean & Jerk workout: an analysis of the Crossfit® GRACE Benchmark

Authors

DOI: https://doi.org/10.6018/cpd.593951
Keywords: athletic performance, Muscle Strength, Extreme Conditioning Programmes

Abstract

We aimed to investigate whether personal record (PR), anthropometric variables and experience would adequately explain variations in Clean and Jerk (C&J) strength endurance performance. 30 Crossfit® competing (CF) participants were recruited in stages. The 1st visit consisted of a bioimpedance analysis and familiarization with effort regulation against the GRACE benchmark (30 reps of C&J). Participants who were not eligible for RX were excluded. The remainder were stratified into 2 categories RX elite (performance time < 3 min) and RX intermediate (> 3 min). On the 2nd visit, the PR was determined only for intermediate RX participants. On the 3rd visit, the subjects underwent GRACE in the shortest possible time. Linear regression established the association of PR, anthropometric variables and experience time on C&J performance time. The results demonstrate a significant association between PR loads and C&J strength endurance performance (r = -0.690; R2 = 0.482; p = 0.001), suggesting that PR would explain 48% of the variations in performance. There was no relevance between the amount of lean mass (r = -0.314; p = 0.220), percentage of fat (r = 0.274; p = 0.228) and level of experience (r = -0414; p = 0.098) and performance GRACE. It is concluded that C&J PR values moderately explain variations in GRACE strength endurance performance. However, it is not possible to say the same for anthropometric variables and experience.

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Author Biography

Sergio Machado, Laboratório de Pânico e Respiração, Instituto de Psiquiatria da Universidade Federal do Rio de Janeiro (IPUB/UFRJ), Rio de Janeiro, Brasil; Centro de Neurociências, Instituto Neurodiversidade, Queimados-RJ, Brasil.

Sergio Machado es licenciado en Educación Física por la Universidad Estácio de Sá (2005). Máster, Doctorado y Postdoctorado en Salud Mental por el Instituto de Psiquiatría (IPUB) de la Universidad Federal de Río de Janeiro (UFRJ) en 2008, 2012 y 2013-2014. Post-doctorado en Neurofilosofía por la Universidad Federal de Uberlândia (UFU) en 2012-2013 y en Neurociencia de la Actividad Física por el Instituto Nacional de Ciencia y Tecnología Traslacional en Medicina (INCT-TM) en 2014. Doctorado en curso en Ciencias del Deporte por Universidad de Beira Interior (UBI - Portugal). Licenciando en Psicología en la Universidad Estácio de Sá, interrumpido en 2018.1. Tiene experiencia en las áreas de salud mental, psicofisiología, neuropsicología, fisiología del ejercicio clínico y neurociencia de la actividad física. Es investigador en el Laboratorio de Pánico y Respiración (UFRJ) y Profesor Permanente del Programa de Posgrado en Ciencias de la Actividad Física de la Universidad Salgado de Oliveira, coordinando el Laboratorio de Neurociencia de la Actividad Física. Sus intereses de investigación son los aspectos biológicos de la actividad física y el ejercicio físico en las dimensiones de prevención, rehabilitación y prescripción de ejercicios, en la perspectiva de la promoción de la salud y el rendimiento humano. Más específicamente, investiga los efectos agudos y crónicos del entrenamiento de fuerza, aeróbico, flexibilidad y neuromotor en la actividad cerebral, aspectos conductuales, psicofisiológicos, neuropsicológicos y de calidad de vida en sujetos sanos (niños/adolescentes, adultos y ancianos) y en pacientes con enfermedades neurológicas y trastornos psiquiátricos. Es investigador invitado de instituciones internacionales, como Universidad de Cagliari (Italia), Universidad Regensburg (Alemania) y Universidad Anahuac Mayab (México). Es editor asociado de revistas internacionales (Frontiers in Psychology, Frontiers in Psychiatry, Cuadernos de Psicologia del Deporte, The Open Sports Science Journal, CNS Neurological Disorders Drug Targets y Clinical Practice and Epidemioloy in Mental Health) y revisor de varias revistas nacionales e internacionales. Actualmente es un joven científico de la Fundación para el Apoyo a la Investigación del Estado de Río de Janeiro (FAPERJ) – Brasil.

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Published
21-09-2024
How to Cite
Albernaz, T., Sales, M., Inacio, P. A., Chiappa, G., Barcelos, R., Bezerra, M., … Sá Filho, A. (2024). The “personal record” estimates strength endurance performance in the Clean & Jerk workout: an analysis of the Crossfit® GRACE Benchmark. Sport Psychology Notebooks, 24(3), 253–264. https://doi.org/10.6018/cpd.593951
Issue
Section
Ciencias del Deporte

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