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Showing 1 to 20 of 38 for “"Submaximal exercise"”.
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The role of supplementary calcium in submaximal exercise and endurance performance.
… of supplementary calcium in endurance exercise via studying its influence on substrate metabolism and body composition. Study 1 examined the effects of four weeks of calcium (citrate) supplementation (1000 mg elemental calcium/day) on 60 minutes of cycling at a submaximal intensity of …
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The effect of prior localized muscle fatigue on lactate production during submaximal exercise
… muscle fatigue on lactate production during exercise. Five subjects, 3 females and 2 males, ages 25-29 (x = 27 {dollar}\pm{dollar} 1) participated in the study. Subjects completed a max VO2 test and two testing sessions, which consisted of cycling for 20 minutes at 80%-85% max VO2, once with …
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Effects of aerobic exercise and weight reduction on carbohydrate metabolism during submaximal exercise in sedentary, overweight women
Hormonal and metabolic responses to submaximal exercise were studied in 11 sedentary, overweight women who participated in an 8 week aerobic exercise program (80% VO2 max) while consuming a hypocaloric diet. A maximal and submaximal treadmill exercise test were performed before and after the …
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Effects of the Angiotensin II Antagonist, Losartan, on Circulo-Respiratory Responses to Submaximal Exercise in Hypertensive Women
… antihypertensive agent Losartan (Lo), on acute exercise performance was assessed in six sedentary, hypertensive women. The purpose, benefits and potential risks of the study were explained to each subject and their informed consent received. In a double blinded crossover design subjects were …
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Impact of the menstrual cycle on critical power and submaximal exercise oxygen uptake in recreationally active, eumenorrheic females
… the menstrual cycle on objective and subjective exercise performance are currently unclear. The current study aimed to investigate differences in critical power (CP) and submaximal exercise oxygen uptake (VO2) across three distinct phases of the menstrual cycle (early follicular, late follicular, …
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Influence of Oral Contraceptives on Selected Hormonal and Metabolic Responses to Prolonged Submaximal Exercise in Moderately Active Women
… energy substrate utilization during prolonged submaximal treadmill exercise (90 min at 50% VO$\sb2$ max). Subjects consisted of moderately active women (18-30 yrs) in a low dose OC group (n = 10), a high dose OC group (n = 5) and a control group (n = 10). Relationships between selected hormonal …
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The Metabolic and Hormonal Effect of Prolonged Submaximal Exercise in Pregnancy and in Anorexia Nervosa (Essential Fatty Acids)
… and hormonal response to moderate intensity exercise for 60 minute duration. The exercise response in two groups of subjects, pregnant women in the fourth month of gestation and patients with the eating disorder anorexia nervosa, were compared with a group of normal weight, non-pregnant …
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The effect of 10 days of heat acclimation on submaximal exercise economy and efficiency at 1600 m and 4350 m
Heat acclimation is known to increase exercise economy. Previous examinations suggest heat acclimation may preserve performance at altitude. This study examined the effect of using heat acclimation as a cross environmental stressor to improve exercise economy and efficiency during acute exercise at …
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Comparative effects of calcium channel antagonism and beta-1 selective blockade on exercise performance in physically active hypertensive patients
… risk of cardiovascular disease. Regular physical exercise reduces blood pressure and is an important component of the management of hypertension. It is therefore important that patients with hypertension participate in habitual physical exercise. Many hypertensive patients who exercise will …
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Effects of submaximal exercise and hyperventilation on ECG components in healthy, young adult men with recording leads typically used for evaluation of ischemic heart disease
… in detecting ST segment depression with exercise or hyperventilation in apparently normal males. Seven physically active men (29.4 + 2.9 yrs, 180.9 + 2.5 cm, 77.9 + 3.4 kg, x±SEM), free of risk factors for heart disease, were initially found to have J point (J₀) depression with mild …
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The Effect of Wearing Mouthguards on VO2, Ventilation, and Perceived Exertion at Two Different Exercise Intensities
… of wearing a protective mouthguard during exercise on ventilation and oxygen consumption. <br><strong><em>Design and Setting:</strong></em> All participants performed a graded maximal exercise test on a cycle ergometer to determine peak oxygen consumption (VO2peak). Each participant also …
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Prediction of oxygen consumption during exercise testing in apparently healthy subjects and coronary artery disease patients
… and three minute VO₂ responses at maximal and submaximal exercise for either group. At peak exercise, the AH group was significantly (P≤.05) different from the CAD group when compared for heart rate (164±2.6 vs 140±4.8 bts•min⁻¹ ), V̇O₂ (33.3±1.1 vs 26.7±2.3 ml•kg⁻¹•min⁻¹), and total treadmill …
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Pre-exercise carbohydrate ingestion : effect of the glycaemic index on metabolism and endurance performance
… transduction during medium to high intensity exercise, and the body's levels of this substrate can be manipulated by dietary and exercise behaviours. Nutritional strategies employed before and during exercise affect endurance exercise performance by altering the metabolism of carbohydrate …
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Folate Status and Supplementation in the Horse
… were conducted to evaluate effects of lactation, exercise, and anti-folate drugs on folate status in the horse, and the bioavailability of supplement and feed folate in the horse. In the first study, mares and foals had adequate plasma folate, RBC folate, and plasma homocysteine concentrations …
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Regulation of satellite cells by extrinsic factors during recovery from exercise in horses
… vast majority of horses engage in some form of exercise, whether it be for leisure or competition. Despite almost half of the approximately 7.2 million horses engaging in structured athletic work, very little is known about one of the most critical facets of recovery: satellite cells (SCs). …
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Measuring anaerobic performance in children using accumulated oxygen deficit
… uptake when discrete and continuous incremental submaximal protocols were used to determine the relationship between submaximal oxygen uptake and exercise intensity. This second study also aimed to investigate the repeatability of oxygen uptake during continuous incremental submaximal exercise. …
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The effects of prolonged exercise on Na+, K+ - ATPase and SR Ca2+ regulation in humans
Prolonged exhaustive submaximal exercise in humans induces marked metabolic changes, but little is known about effects on muscle Na+, K+ATPase activity and sarcoplasmic reticulum (SR) Ca2+ regulation. We therefore investigated whether these processes were impaired during cycling exercise at …
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Aerobic and anaerobic exercise tolerance in the heat : effect of acclimatization
The effect of heat acclimatization on aerobic exercise tolerance in the heat, and on subsequent anaerobic exercise performance was investigated. Ten male subjects were acclimatized by exercising 90 minutes per day for eight days in the heat (39.7 C db, 31.0% RH) on a bicycle ergometer at a workload …
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Investigation and analysis of heart failure with preserved ejection fraction (HFpEF) with Magnetic resonance
… higher incident rates in females and the obese. Exercise intolerance even to submaximal exercise is the cardinal symptom of this disease. Clinical trials have shown an improvement in the quality of life and stamina in patients after supervised exercise training. Recent studies have indicated …
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