Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 62 for “"maximal exercise"”.
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A Comparative Analysis of Three Maximal Exercise Protocols
1 PDF file (67 leaves)
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Pulmonary diffusion limitation, V̇ /Q̇ mismatch and pulmonary transit time in highly trained athletes during maximal exercise
… times (PTT) and pulmonary gas exchange during exercise, 10 highly trained male athletes (age=26.4±4.4 years, Height=185.5±5.3cms, Weight=78.2±8.6 kg, V 02max=5.15±0.521-min-1) under went exercise testing at rest (R) and 150W, 300W and maximal exercise (372±22W), corresponding to an oxygen …
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A Comparison of Maximal Exercise Responses among Patients with a Total Artificial Heart, a Left Ventricular Assist Device, or Advanced Heart Failure
The purpose of this study was to evaluate graded exercise responses to treadmill exercise in patients with a total artificial heat (SynCardia, Tucson, AZ). Additionally, this study sought to compare the exercise response in total artificial heart (TAH) patients to both advanced heart failure (HF) …
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The effects of oestradiol administration on energy metabolism during prolonged exercise in amenorrheic athletes
To delay the onset of fatigue in endurance exercise it is advantageous to prolong muscle glycogen depletion. Oestradiol (the female sex hormone) has been shown to increase muscle glycogen content at rest and increase the availability of fats as a fuel source during exercise therefore delaying the …
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Comparison of anaerobic and aerobic fatigue on visual skills
Exercise-induced fatigue is a common concern among individuals performing physical activities either for training and/or athletic performance. An enormous amount of research has been conducted on exercise-induced fatigue and its effect on physiological and physical functions. However, it is only …
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Incidence and implications of atypical exercise blood pressure responses in adults without diagnosed coronary heart disease
… were collected from the initial symptom-limited maximal exercise tests of 161 patients without. diagnosed coronary heart disease (CHD). Subjects were grouped according to their systolic (SBP) and diastolic (DBP) blood pressure changes between the final two stages of exercise.
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Aetiology of fatigue during maximal and supramaximal exercise
… components in the development of fatigue during maximal exercise. Fatigue during maximal and supramaximal excercise has traditionally been modelled from the peripheral context of an inadequate capacity to supply metabolic substrate to the contracting muscles to meet the increased energy demand.
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Physiological consequences of the work of breathing and of inspiratory muscle training
… ([lac-]B) is commonly observed during whole-body exercise following inspiratory muscle training (IMT). However, whether the inspiratory muscles are, in part, the source of these reductions remains unknown. Accordingly, this thesis investigated: (I) the contribution of the respiratory muscles to …
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Redox regulation of vascular NO bioavailability during hypoxia: implications for oxygen transport and exercise performance
… in O2peak at altitude is well documented. Maximal exercise in hypoxia is accelerated through a reduction in O2 supply with contributions from central and peripheral origins of fatigue. Changes in cerebral and muscle oxygenation have not been well characterised during incremental exercise in …
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Dietary Effects on Pulmonary Function at 3780 Meters Altitude
… 1.2% on the LO CHO diet following acute maximal exercise; on the HI CHO diet it dropped 4.8%. This difference, was significant (p2 and FEV<sub>3</sub> continued to fall on both diets but there was not a significant FEV1/FVC did change significantly following acute maximal 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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The effect of endurance training on human ammonia metabolism
… include: 1) plasma NH3 accumulation during exercise at similar absolute and relative work intensities; 2) plasma NH3 accumulation during recovery from maximal exercise; 3) the absolute and relative work intensities at which blood lactate (LA) and plasma NH3 concentrations begin to rapidly …
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Factors limiting the exercise tolerance of patients with end-stage renal failure undergoing maintenance haemodialysis
Exercise tolerance, measured as peak oxygen consumption (VO₂ peak), is very low in patients with end-stage renal failure undergoing maintenance haemodialysis. Due to their associated anaemia and low peak heart rates during maximal exercise it has been argued that the reduced blood oxygen carrying …
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The Effect of Acute Exercise on Neutrophils and Oxidative Stress.
… study tested the hypothesis that high intensity exercise, independent of total oxygen consumption, results in the most significant elevations in neutrophil (PMN) counts and blood oxidative stress (OS). This study also tested the hypothesis that active individuals have a blunted PMN and OS …
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The role of the endogenous opioid system in thermoregulation during exercise
… man the metabolic heat produced during physical exercise stresses the thermoregulatory system, particularly if hot, humid environmental conditions prevail. It has recently been postulated that endogenous opioids may play a role in regulating body temperature at rest and because it has also been …
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Identifying salivary biomarkers associated with prolonged sitting
… session included a baseline saliva sample and maximal exercise test. The remaining two sessions were performed in random order. One, a prolonged sitting session (4-hours of sitting), and the other, an interrupted sitting session (4-hours of sitting with 3-minute moderate-intensity walking …
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Physiological responses to pedal-assist e-bike use in older adults
… (n=21, mean age 70.1 ± 5.1) completed a maximal exercise test followed by two 6.25km outdoor pedelec rides at a self-selected comfortable pace, once with 20kg of load added and once without, in random order. Nearly all participants (19/21) achieved a mean intensity of MVPA. Mean intensity …
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Cardiorespiratory responses to altered rider position with conventional and aerodynamic handlebars
… to three rider positions while undergoing maximal cycle ergometry. The positions were determined by the position of the hands on the handlebars and the posture of the upper body: upright (UP), and drop position (DP) with conventional racing handlebars, and an aerodynamic tuck (AT) using …
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The effect of exercise training on physical fitness in type 2 diabetes mellitus
We compared the effects of different exercise modes on cardiorespiratory fitness and muscular strength as well as the rate of strength development in individuals with T2DM. 251 participants in the DARE trial were randomly allocated to aerobic training (A), resistance training (R), combined training …
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