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 14 of 14 for “"muscle oxygenation"”.
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Fatigue-Independent Alterations in Muscle Activation and Effort Perception During Forearm Exercise: The Role of Local Oxygen Delivery
In exercise, the sensations of effort to make the muscles do exercise can contribute to an individual’s decision to stop exercise or decrease exercise intensity. Skeletal muscle fatigue is one mechanism by which the effort required to continue exercise can be increased. In order to continue …
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Physiological effects of exercise in patients with peripheral vascular disease
… regression model were peak oxygen uptake, calf muscle oxygenation at 1 min and time-to-minimum calf muscle oxygenation. The results suggest that cardiopulmonary fitness and the ability to match oxygen delivery to metabolic demand are important determinants of walking performance in claudicants. …
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Examining Sex Differences in Substrate Utilization During Threshold-Based Exercise Prescription
… explained by differences in metabolic stress and muscle oxygenation linked to sex-based differences in lactate threshold (LT) and critical power (CP). Thus, the purpose of this thesis was to examine the effect of threshold-based exercise prescribed (THR) using LT and CP to determine whether using …
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The Effect of Ischemic Preconditioning on Rock Climbing Performance
… to assess the effects of IPC on hemodynamics and muscle oxygenation during a finger flexor endurance test. This study assessed the effects of IPC on TTF, brachial artery blood flow (BF), vessel diameter (VD), and tissue saturation index (TSI). Variables were measured before (BL1) and after …
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Redox regulation of vascular NO bioavailability during hypoxia: implications for oxygen transport and exercise performance
… origins of fatigue. Changes in cerebral and muscle oxygenation have not been well characterised during incremental exercise in hypoxia. It is possible attainment of O2peak is driven by the oxygenation profile of these tissues whilst changes in molecular biomarkers of endothelial function …
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An exploration of muscle oxygen kinetics in professional boxing
… 1, the peripheral response of the rectus femoris muscle was investigated using NIRS wearable technology to determine the physiological demands of typical training modalities and a repeated sprint protocol in a sports science setting. 10 experienced professional boxers (age: 26±5 years, height: …
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Molecular detection and charcaterisation of biologically relevant free radicals during surgical ischaemia-reperfusion
… would further compound regional tissue de-oxygenation that is frequently encountered during the ischaemic phase of surgery and thus, by consequence increase oxidative stress. The aim of the study was to further understand a potential relationship between oxidative stress and alterations in …
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Using gravity to help us understand the AMPK-PGC-1α axis in skeletal muscle from healthy young males
… activator of PGC-1α on PGC-1α in human muscle. If researchers experimentally reduce blood flow to exercising muscle, it could help them understand the effect of a particular PGC-1α activator on PGC-1α because some activators should be sensitive to amounts of oxygen in our muscle cells. …
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The effects of heat acclimation on physiological responses to sprint interval training at various pedal resistances
… following HA, the 7.5TG induced no change in muscle oxygenation. Conversely, the 8.5TG during the repeated sprints saw a significant increase in the rate of the fast desaturation slope during sprint 1 (P = 0.05), and the duration of fast desaturation of sprint 6 decreased significantly (P = …
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Enhancing Team Pursuit Performance using Blood Flow Restriction
… production V̇CO2; and ventilation, V̇E) and muscle oxygenation responses were measured during the HIIT, and vascular endothelial growth factor (VEGF) was measured pre- and 3-hours post-HIIT. Results demonstrated that BFR increased V̇CO2 and V̇E (both p < 0.05) during work bouts but did not …
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Effects of pulsed electromagnetic field therapy on symptoms associated with eccentric exercise-induced muscle damage
… consisting of eccentric contractions induces muscle damage that is characterised by muscle weakness, soreness, swelling and increased muscle stiffness. These symptoms affect daily activities and athletic performance; therefore, interventions to attenuate the symptoms and enhance recovery from …
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Muscle adaptations to post-exercise cooling
Endurance training results in profound skeletal muscle adaptations that improve fatigue resistance and enhance exercise capacity. To maximise these adaptations, athletes often engage in extensive training regimes, involving 10 to 16 training sessions∙wk-1. The use of cold water immersion (CWI) as a …
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STOP THE PRICKS: A VALIDATION STUDY OF A NONINVASIVE LACTATE THRESHOLD DEVICE
<p>ABSTRACT</p> <p>Purpose: The aim of this study is to assess the validity of a noninvasive lactate threshold device (NID) to determine lactate threshold heart rate (LTHR) and aerobic threshold heart rate (AeTHR).</p> <p>Methods: Twenty-one recreational athletes completed a personalized graded …
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Effects of external and internal precooling on sudo- and vasomotor responses and adaptations to heat acclimation
… and laser Doppler flowmetry, changes in muscle blood volume and oxygenation and skin perfusion were examined. In study 4, 20 male recreational triathletes and cyclists (27-50 y) completed 10 sessions of 60-min cycling at RPE 15 within 14 days in the heat (35.3 ± 0.3°C, 53.4 ± 1.9 % RH), …