Local Muscle Endurance and Strength Had Strong Relationship with CrossFit® Open 2020 in Amateur Athletes

Ramires Alsamir Tibana; Ivo Vieira de Sousa Neto; Nuno Manuel Frade de Sousa; Caroline Romeiro; Adriana Hanai; Hiury Brandão; Fábio Hech Dominski; Fabricio Azevedo Voltarelli

doi:10.3390/sports9070098

Local Muscle Endurance and Strength Had Strong Relationship with CrossFit^® Open 2020 in Amateur Athletes

Sports (Basel). 2021 Jul 6;9(7):98. doi: 10.3390/sports9070098.

Authors

Ramires Alsamir Tibana¹, Ivo Vieira de Sousa Neto², Nuno Manuel Frade de Sousa³, Caroline Romeiro^{1

4}, Adriana Hanai⁴, Hiury Brandão⁴, Fábio Hech Dominski⁵, Fabricio Azevedo Voltarelli¹

Affiliations

¹ Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso (UFTM), Cuiabá 78060-900, Brazil.
² Laboratory of Molecular Analysis, Graduate Program of Sciences and Technology of Health, University of Brasilia, Brasilia 72220-900, Brazil.
³ Laboratory of Exercise Physiology, Faculty Estacio of Vitoria, Vitoria 29092-280, Brazil.
⁴ Graduate Program on Physical Education, Catholic University of Brasilia, Brasilia 71966-700, Brazil.
⁵ Laboratory of Sport and Exercise Psychology, Human Movement Sciences Graduate Program, College of Health and Sport Science of the Santa Catarina State University (UDESC), Florianópolis 88080-400, Brazil.

Abstract

This study analyzed the relationship between anthropometric measures, cardiorespiratory capacity, strength, power, and local muscle endurance with performance in the CrossFit^® Open 2020. For this, 17 volunteers (6 women) (29.0 ± 7.2 years) completed, on separate weeks, tests for body composition (dual-energy X-ray absorptiometry), maximal oxygen consumption (2 km row test), muscle strength (one repetition maximum (1 RM) back and front squat, isometric peak torque), muscle power (1 RM snatch and clean and jerk) and muscle endurance (Tibana test), which were compared with performance during the CrossFit^® Open 2020. Specific tests of localized muscular endurance and muscle strength had the strongest relationship with performance in the CrossFit^® Open 2020. On the other hand, the percentage of fat and cardiorespiratory capacity were not significantly correlated with CrossFit^® Open 2020 workout performance. Coaches and practitioners should therefore utilize these findings to assess physical fitness and organize the distribution of the training session based on less developed physical needs, in order to ensure an appropriate physiological adaptation for a given competition.

Keywords: athletic performance; exercise testing; functional fitness training.