The effect of one-year physical training on heart rate variability in older adults was evaluated in 14 healthy men (age > 55 year). Measures of heart rate variability were obtained in both time and frequency domain. Tenminute ECG recordings were made in supine position and in standing position. A progressive climbing exertion test till exhaustion was performed to estimate maximal oxygen consump...

The aim of this study was to examine the effects of Eleutherococcus senticosus (ES) supplementation on endurance capacity, cardiovascular functions and metabolism of recreationally trained males for 8 weeks. Nine recreationally trained males in college consumed 800 mg/d of ES or starch placebo (P) for 8 weeks according to a double-blind, randomized, placebo controlled and crossover design with ...

We tested the hypothesis that the age-related decline in maximal aerobic capacity, as measured by maximal oxygen uptake (VO(2 max)), is greater in Hispanic than in Caucasian women. We studied 146 healthy sedentary women aged 20-75 yr: 53 Hispanic (primarily of Mexican descent) and 93 Caucasian (non-Hispanic white). The groups did not differ in mean age, body mass, percent body fat, estimated ph...

Sports talent may be identified from young children when they show interest in different sports. Anthropometric, physical, cardiorespiratory fitness and lipids profiles contribute to selection procedures. The present study was undertaken to investigate the anthropometric, physical, cardiorespiratiory fitness and lipids and lipoprotein profiles of 10-16 yrs children, in order to identify sports ...

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 892 1. Cardiorespiratory Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 894 1.1 Maximal Oxygen Uptake . . . . . . . . . . . . . . . . . . . . . . ...

This study evaluated blood pressure and heart rate responses to exercise and nonexercise tasks as indexes of autonomic function in subjects with and without Down syndrome (DS). Twenty-four subjects (12 with and 12 without DS) completed maximal treadmill exercise, isometric handgrip (30% of maximum), and cold pressor tests, with heart rate and blood pressure measurements. Maximal heart rate and ...

Exercise performance in chronic heart failure is severely impaired, due in part to a peripherally mediated limitation. In addition to impaired maximal exercise capacity, the O(2) uptake (VO(2)) response during submaximal exercise may be affected, with a greater reliance on anaerobiosis leading to early fatigue. However, the response of VO(2) kinetics to submaximal exercise in chronic heart fail...

Symptom-limited maximal oxygen intake (VO SL) and electrocardiographic responses to multistage treadmill test were determined before and after 3 months of physical training in 14 patients with coronary heart disease. Six patients also had hemodynamic studies done at several submaximal work loads in the upright position before and after training. S-T-segment responses were measured by computer a...