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.

Acute effects of different resistance training loads on cardiac autonomic modulation in hypertensive postmenopausal women.

Background: Individuals with arterial hypertension often have an autonomic nervous system (ANS) imbalance with predominance of sympathetic ANS. This predominance can lead to injury of several organs affecting its functioning. There is evidence that performing high intensity resistance training (RT) with heavier loads and a lower number of repetitions results in lower cardiovascular stress when compared with lighter loads and a higher number of repetitions.