Physical activity and adolescent sexual maturity: a systematic review.

The objective was to ve rify the association between sexual maturation and physical activity during adolescence. A systematic review of articles published between 2008 and 2018 was conducted using the following databases: PubMed/Medline, SciELO, Web of Science, Scopus, Lilacs, and BVS Adolec Brasil. The following descriptors and keywords were used in English and Portuguese: adolescent, sexual maturation, survey, questionnaire, and physical activity.

Elastic resistance training to increase muscle strength in elderly: a systematic review with meta-analysis.

Analyze the efficiency of training programs with progressive elastic resistance on muscle strength in elderly 'healthy' and 'not healthy'. It was performed a systematic review in relevant databases to identify controlled clinical trials with outcomes from parameters of muscle strength. Two independent reviewers decided about the inclusion criteria, data extraction and evaluation of methodological quality of the articles.

[Prevalence of frailty in patients in chronic kidney disease on conservative treatment and on dialysis].

Introduction: Frailty is a physiological vulnerability status of the patient which is associated with the increased number of hospitalization and death.

Objectives: To evaluate the prevalence of frailty and its associated factors in patients with chronic kidney disease (CKD) on conservative treatment (CT), hemodialysis (HD) and peritoneal dialysis (PD).

Methods: Frailty was assessed in 146 patients (86 CT, 37 HD and 23 PD) and characterized as muscle weakness and exhaustion--by the physical aspect and vitality domains, respectively, evaluated in the SF-36 quality of life instrument; physical inactivity--if he or she answered "never" or "hardly ever" when asked about physical activity; and as unintentional weight loss (> 4.