BACKGROUND The reference values for cardiopulmonary exercise testing (CPET) available in Brazil were derived from a cycle ergometer in a sedentary and relatively small population. OBJECTIVE Provide reference values for CPET in Brazilians of both sexes, either sedentary or active. METHODS From 2006 to 2008, 3,992 CEPT of healthy individuals were selected from our laboratory. Athletes, smoker...

A healthy lifestyle is an important focus in today's society. The physical benefits of regular exercise are abundantly clear, but physical fitness is also associated with better cognitive performance. How these two factors together relate to characteristics of the brain is still incompletely understood. By applying mathematical concepts from 'network theory', insights in the organization and dy...

Low cardiorespiratory fitness and low serum 25-hydroxy vitamin D (25[OH]D) levels are associated with increased cardiovascular and all-cause mortality, but whether low 25(OH)D is independently associated with cardiorespiratory fitness in healthy adults is not known. We examined 25(OH)D levels and fitness in 200 healthy adults participating in a double-blind clinical trial investigating statins ...

The associations of the C34T polymorphism of the adenosine monophosphate deaminase 1 (AMPD1) gene with cardiorespiratory phenotypes were tested during cycling exercise at absolute and relative power outputs progressing to exhaustion before and after endurance training for 20 wk in the HERITAGE Family Study cohort (n = 779). Since no blacks were mutant homozygotes (TT), only whites were consider...

BACKGROUND Chronic psychosocial stress and serum uric acid (SUA) level have been implicated in the etiology and cardiovascular events risk factors in hypertension. Studies have reported significant benefit of exercise in the overall management of hypertension. However, studies on the effect of exercise on psychosocial stress and SUA in the management of hypertension seem scanty. AIM The aim o...

OBJECTIVE Physical inactivity has been established as a major primary risk factor for the development of hypertension. Also, factors such as elevated total cholesterol (TC) and reduced high density lipoprotein cholesterol (HDL) have been implicated as risk factors for coronary events in hypertension. The purpose of the present study was to investigate the effect of interval training program on ...

To examine the effects of repetitive bouts of heavy exercise on the maximal activities of enzymes representative of the major metabolic pathways and segments, 13 untrained volunteers [peak aerobic power (Vo(2 peak)) = 44.3 +/- 2.3 ml.kg(-1).min(-1)] cycled at approximately 91% Vo(2 peak) for 6 min once per hour for 16 h. Maximal enzyme activities (V(max), mol.kg(-1).protein.h(-1)) were measured...

STUDY OBJECTIVES To identify the following in individuals with chronic stroke: (1) the relationship between the maximal oxygen consumption (Vo(2)max) during cycle ergometry and the distance covered in the 6-min walk test (6MWT), and (2) the stroke-specific impairments that are important determinants for the 6MWT distance. DESIGN Cross-sectional study using a convenience sample. SETTING Exer...