BACKGROUND This observational study aims to describe fitness, and objectively measured physical activity levels and patterns in 409 young black South African adults (aged 19-20 years) from Soweto, as well as to examine associations between physical activity, fitness and BMI. METHODS A sub-maximal ramped step test was used to obtain an estimate of maximal oxygen uptake (VO2max). Physical activ...

BACKGROUND The peaking period for endurance competition is characterized for a relative increase of the intensity of training, after a longer period of training relatively dominated by lower intensity and higher volume. OBJECTIVES The present study was designed to compare physiological and 10 km performance effects of high intensity training (HIT) versus race pace interval training (RP) durin...

Relevance. Сardiovascular status could be assessed by maximal aerobic capacity (VO2max) through direct analysis of the gases involved in pulmonary ventilation and monitoring fluctuations intervals between beats over time as heart rate variability. The aim study was to investigate relationship VO2max variability young adults. Materials Methods. A total 100 adults ages 18 25 were included observa...

Calcineurin, which functions in calcium signaling, is expressed in skeletal and cardiac muscle and has been linked to sensitivity to muscle strength training. It is also proposed to contribute to individual aerobic endurance. To investigate the relationship between calcineurin-encoding genes and aerobic endurance traits, 126 young-adult Han Chinese males were enrolled in an aerobic exercise tra...

Background and Objectives: High aerobic exercise capacity and sport-related physical activity are reported to be inversely associated with arterial stiffness in healthy young adults. However, it is unknown whether increased physical activity and/or high aerobic exercise capacity attenuate arterial stiffness in patients with untreated hypertension. Subjects and Methods: We studied subjects with ...

the purpose of this study was to investigate the effect of aerobic exercise with intensity (60-65%, maximal heart rate) with consumption vitamin e on glutathion peroxidase activity and oxidative stress indicators and muscle damage of active men student. for this reason 45 male active students were purposefully selected and randomly divided in to three groups. the participants trained according ...

parathyroid hormone (pth) is the major factor of calcium homeostasis. this hormone increases calcium uptake in intestines through stimulation of the active formation of vitamin d and eventually increases bone density. the aim of this study was to investigate the effect of one session of resistance and endurance activity on pth and alp in untrained young girls (mean age 21.9±1.23 yrs, height 161...

BACKGROUND Public health initiatives world-wide recommend increasing physical activity (PA) to improve health. However, the dose and the intensity of PA producing the most benefit are still debated. Accurate assessment of PA is necessary in order to 1) investigate the dose-response relationship between PA and health, 2) shape the most beneficial public health initiatives and 3) test the effecti...