Acute and Chronic Effects of Interval Training on the Immune System: A Systematic Review with Meta-Analysis.

Purpose: To summarize the evidence regarding the acute and chronic effects of interval training (IT) in the immune system through a systematic review with meta-analysis.

Design: Systematic review with meta-analysis.

Data Source: English, Portuguese and Spanish languages search of the electronic databases Pubmed/Medline, Scopus, and SciELO.

Physical Inactivity Is Associated With Increased Levels of Anxiety, Depression, and Stress in Brazilians During the COVID-19 Pandemic: A Cross-Sectional Study.

To evaluate the levels of anxiety, depression, and stress associated with the practice of physical exercise (PE) during pandemic by COVID-19. This study has a cross-sectional characteristic and was carried out between May 12 and 14, 2020. An online questionnaire was applied with questions to assess sociodemographic characteristics and physical exercise during the CoVID-19 pandemic, in addition to depression, anxiety, and stress analysis.