Associations between strength, flexibility, and painful symptomology in university staff.

Background: In the adult population, the work environment and physical fitness levels are directly related to the onset of musculoskeletal pain, repetitive strain injuries, and decreased blood circulation. Although low levels of muscle strength and flexibility may lead to a higher prevalence of pain, specific anatomic regions are poorly addressed.

Objective: To investigate the prevalence of musculoskeletal pain and the association between strength or flexibility and pain in university staff.

Association Between Device-Measured Moderate-to-Vigorous Physical Activity and Academic Performance in Adolescents.

Background: Although many studies found a positive association between physical activity (PA) and academic performance (AP), most did not consider important variables of school setting and students' self-concept.

Aims: To analyze the association between moderate-to-vigorous PA (MVPA) and AP in adolescents, considering potential confounding variables of school setting and self-concept in adolescents.

Method: The final sample was composed of 394 students (186 boys) with a mean age of 11.