The purpose of this study was to determine the effect of six months moderate aerobic training on the immune system of aged men using VO2max as indicator and some selective markers of immune system. 40 healthy aged males (60-70 years) were selected and randomly divided into two groups: experimental and control. Before the experiment measurements on VO2max, counts of CD4 and CD8 cells of all subj...

Age-associated changes in power and maximal oxygen consumption (VO2max) were studied in a cross section of endurance trained cyclists. Subjects (n = 56) performed incremental cycling exercise, during which capillary blood lactate [La(-)] was measured. Power output increased by 30 Watts during each 5 minutes stage, with initial power output based on individual ability. When [La(-)] was >4.5 mmol...

The study aimed to investigate the effect of acutely consuming high-dose isolated 6 g taurine 90 min before incremental treadmill-running time exhaustion (TTE) performance on maximal oxygen uptake (VO2max), heart rate (HRmax), TTE, and ratings perceived exertion (RPE). A total ten well-trained, competitive male endurance (biathlon) athletes participated in this study. double-blind, randomized c...

The purpose of this investigation was to determine whether differences in body composition, pharmacological treatment, and physical activity explain the increased resting metabolic rate (RMR) impaired insulin sensitivity hypertension. Resting blood pressure, RMR (indirect calorimetry), composition (dual-energy X-ray absorptiometry), (accelerometry), maximal oxygen uptake (VO2max) (ergospirometr...

Background: This work studied the relationship between changes in cerebral blood flow velocity (CBFV) through the middle cerebral artery (MCA) with non-invasive ventilatory threshold (VT) measurements determined by gasexchange during upright maximal cycle ergometry. Methods: Fourteen (M=8, F=6) healthy, young (23.1 ± 3.9 yr) participants volunteered for this study and performed a cycle ergomete...

Six detrained Thoroughbred horses performed incremental treadmill tests. Maximal oxygen uptake (VO2max) was measured during exercise by analysis of expired gas. The relationships between oxygen consumption (VO2) and work rate, heart rate (HR), cardiac output (Q), stroke volume (SV) and arteriovenous oxygen content difference [C(a-v)O2] were examined during submaximal and maximal exercise. The r...

The aim of the study was to compare physiological responses between runners adapted and not adapted to deep water running at maximal intensity and the intensity equivalent to the ventilatory threshold. Seventeen runners, either adapted (n = 10) or not adapted (n = 7) to deep water running, participated in the study. Participants in both groups undertook a maximal treadmill running and deep wate...

High endurance capacity, expressed by VO2max, is essential for optimal performance and is influenced by anthropometric and physiological parameters. 30 Indian young national level field-hockey players were studied to evaluate their endurance capacity and associated parameters. VO2max, relative physical work capacity at 170 bpm (rPWC), heart rate recovery (HRR3/6 at 3rd/6th minute), hemoglobin c...

Anorexia Nervosa is a very serious eating disorder that usually young girls, between ages 12-20 experience. Girls which have such high expectations placed on them to be thin are the ones that are most likely to experience Anorexia Nervosa. However a few researches have studied the effect of exercise in young thin women with anorexia nervosa. The aim of this study was to investigate whether walk...

Background: To establish a balance between work (physical exercise) and human, the aerobic capacity (VO2max) could be used as a measure. Assessing heart rate in association to physiological symptoms is the most commonly used tools for the assessment of fatigue during physical exercise. This study aimed to investigate the association between the aerobic capacity and the heart rate of workers fro...