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Children and adolescents do not participate in enough physical activity (PA) to meet the recommended levels, which stops them from benefiting from regular PA's positive effects on their health. In recent years, technology-based initiatives have provided children and adolescents with a compelling and viable way to encourage PA. Based on the results of previous research, we have conducted this review to gain a better understanding of if and how specific commercially available wearable devices impact physical activity promotion and health in children and adolescents. We have conducted this review, that was based on a theoretical framework of the self-determination theory (SDT), and focused on the impact that wearable devices have on physical activity promotion and health. The electronic databases of Google Scholar, Web of Science, and PubMed were searched between 2010 and 2023 for all available literature. Eleven studies overall satisfied the requirements for inclusion criteria. The sample sizes for the studies ranged from 32 to 502, and they included both boys and girls between the ages of 4 and 14. Wearable technology was used for no less than one week and no more than four months. The current review revealed that commercial wearable activity tracker-based programs among children and adolescents had a positive influence on daily levels of MVPA and step totals, as well as sedentary behavior. [ABSTRACT FROM AUTHOR]

Introduction. The aim of this study was to establish if sodium bicarbonate affects the blood marker levels after a Special Judo Fitness Test in elite judo athletes. Material and Methods. Ten male judo athletes (age 20 ± 2.1 years; body height 180.18 ± 8.11 cm; body mass 85.24 ± 23.17 kg; body mass index 25.2 ± 3.4 kg/m²), judo masters (black belt holders) with at least 10 years of training and competition experience, agreed to participate in the current research. Results. The results showed a significant main effect of time (p < 0.05) for the following variables: uric acid, aspartate aminotransferase, alanine transaminase, creatine kinase, lactate dehydrogenase, phosphate, magnesium, calcium, sodium, potassium, and chloride. We found that creatine kinase, C-reactive protein, sodium and chloride were significantly different (p < 0.05) in the sodium bicarbonate group compared to placebo group after the Special Judo Fitness Test. Conclusion. The main finding of the present study was that sodium bicarbonate (0.3 g/kg) improved recovery compared to placebo in elite judokas. Therefore, coaches should consider sodium bicarbonate to improve athlete recovery during combat. [ABSTRACT FROM AUTHOR]