OBJECTIVE To assess the acute metabolic and cardiovascular responses to walking exercise at an intensity corresponding to the heart rate of claudication pain onset and to investigate the effects of a 12-week walking training program at this intensity on walking capacity. METHODS Twenty-nine patients with intermittent claudication were randomly allocated to the walking training (n=17) or contr...

Purposes were to (a) to examine the validity and precision of a hand-to-hand bioelectrical impedance analyzer (HBIA) and (b) to determine the effect of an acute sub-maximal aerobic exercise bout on HBIA percent body fat (%BF) measures. Forty-one young adults (21 women; 20 men) visited the laboratory for body composition assessment on two separate occasions. During the control session, %BF was a...

coronary artery disease (cad) is a leading cause of morbidity and mortality in most countries. this disease is directly associated with increased low–density lipoprotein cholesterol (ldl-c) and is conversely associated with high–density lipoprotein cholesterol (hdl-c) concentrations. abca1 is the main exporter of phospholipid and cholesterol from cells to lipid-free or minimum lipid apolipoprot...

To differentiate between transient (acute) and training (chronic) effects of exercise at two different intensities on blood lipids and apolipoproteins (apo), 26 hypercholesterolemic men (cholesterol = 258 mg/dl, age = 47 yr, weight = 81.9 kg) trained three times per week for 24 wk, 350 kcal/session at high (80% maximal O2 uptake, n = 12) or moderate (50% maximal O2 uptake, n = 14) intensity. Se...

The purpose of this investigation was to examine the effects of chronic and acute exercise on the main components involved in excitation-contraction coupling and relaxation in rat heart. Sixty male Wistar rats were divided into a sedentary (S) and three 12-wk treadmill-trained groups (T-1, moderate intensity; T-2, high intensity; T-3, interval running). After 12-wk, 15 rats from the S group and...

The present study aimed to examine the effects of a prior session of power training on blood pressure values during tasks that mimic the activities of daily living in hypertensive and normotensive older women. A randomized crossover experimental design was used for this study. Eleven older women (age, 66.1±1.2 years; body mass index, 26.7±4.8 kg/m2; systolic blood pressure, 133.9±23.4 mmHg) wer...

Resistance and aerobic exercise is recommended for cardiovascular health and disease prevention. However, the accompanying increase in arterial pressure during resistance exercise may be detrimental to vascular health. This study tests the vascular benefits of aerobic compared with resistance exercise on preventing impaired vascular function induced by a single weight lifting session that is as...

Introduction: Excessive physical exercise overproduces reactive oxygen species. Even if elite sportsmen increase their antioxidant status by regular physical training, this improvement is not sufficient to limit free radical production during the competition period which can be detrimental to the body. This study evaluates the effect of grape seed supplementation along with aerobic exercise o...

the aim of this study was to investigate the response of vascular endothelial growth factor (vegf) to a bout of exhausted submaximal exercise and its correlation with vo2max in different bouts. therefore, 12 active men (mean age: 24 years) were randomly selected and performed the submaximal exercise. blood samples were collected before, immediately and two¬¬ hours after the exercise training. d...