Effects of a CrossFit® session on redox state markers
Original article - e235600 - Published 2024, Oct 1st
DOI:
https://doi.org/10.33233/rbfex.v23i2.5600Keywords:
oxidative stress, circuit-based exercise, high-intensity interval trainingAbstract
Background: CrossFit® is a type of high-intensity functional training that may have health benefits. The modality has also been criticized due to the hypothesis that it could increase the risk of injuries due to oxidative stress generated by the intensity of the exercises. However, there are few studies evaluating oxidative stress in its practitioners. Objective: To evaluate the redox state in trained and non-trained adults, of both sexes, submitted to a high-intensity protocol named 'Cindy'. Methods: We evaluated 19 participants of a Crossfit® program, divided into beginners and experienced, women and men. For characterization, we evaluated body composition, maximal strength and aerobic capacity. For redox state evaluation, participants performed Cindy and had blood samples collected at pre-exercise and 30 minutes post-exercise, through biomarkers such as: SOD, GPx, FRAP and TBARS. Results: At the post-30 moment, there was a significant increase of GPx in the general population and, according to gender, this increase was in women (PRE 40.0 ± 3.9 and POS 46.7 ± 8.1), but not among men (PRE 36.4 ± 8.7 and POS 40.7 ± 5.7); we observed significant reduction of SOD, especially in novices (PRE 3273.1 ± 414.8 and POS 2378.1 ± 781.9); FRAP increased significantly (PRE 84.09 ± 20.49 and POS 106.27 ± 28.64), being this phenomenon observed in both sexes and experience levels; TBARS remained unchanged. Conclusion: A Cindy session promoted GPx and FRAP increase, SOD reduction and TBARS maintenance in its practitioners.
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Copyright (c) 2024 Brenna Mirelle Barbosa Bastos, João Henrique Gomes, Ana Mara de Oliveira e Silva, Renata Rebello Mendes
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