The effects of exercise intensity using an identical workload on total haemoglobin count and oxygen saturation using near infrared spectroscopy.
View/ open
Author
Glover, Sophie
Date
2011-10-24Type
Thesis
Publisher
University of Wales
Metadata
Show full item recordAbstract
The purpose of the present study was to determine whether exercise intensity affects responses at a peripheral level despite an identical workload. As numerous relationships between peripheral and cardiovascular responses have been recognized, by identifying the optimal intensity for peripheral changes to occur, there is potential to infer chronic cardiovascular changes from beneficial training implications. Ten male subjects (mean ± SD: age 20.1 ± 0.64 years, height 179.63 ± 9.99 cm, weight 81.51 ± 10.98 kg) performed an initial ramp protocol followed by two individually prescribed exercise tests on three separate occasions using a cycle ergometer. Participants were active and healthy and were recruited from within the school of sport at the University of Wales Institute Cardiff (UWIC). Using near infrared spectroscopy (NIRS) on the Vastus Lateralis, total haemoglobin count (THC) (Um-micrometers) and oxygen saturation (%) were quantified. Findings for THC accept H1 (P<0.05) and for oxygen saturation accept H2 (P<0.05), therefore highlighting a significant difference between exercise intensities. When the high intensity intermittent protocol was split for separate analysis of the sprint and recovery phase, statistically significant (P<0.05) differences exist in measurements of THC (uM) and oxygen saturation (%) between all 3 exercise conditions, additionally confirmed by post-hoc ‘Bonferroni correction’ analysis (P<0.0167). From graphical representation it is evident that at the end of the recovery phase during the intermittent protocol, oxygen saturation and THC are simultaneously at their highest level. It consequently appears possible to suggest that high intensity intermittent exercise is the most beneficial form of training to optimise responses at a peripheral level. Furthermore, previous research provides the potential to infer chronic cardiovascular changes with significant associations to improving VO2 max.
Description
BA Enterprise Project
Collections
Related items
Showing items related by title, author, subject and abstract.
-
Does vastus lateralis muscle oxygenation affect left ventricular twist during exercise
Samuel, Thomas (Cardiff Metropolitan University, 2014)LV twist and skeletal muscle oxygen saturations are known to change immediately with the onset of exercise. Previous literature has suggested that LV twist increases and muscle oxygenation decreases with exercise compared ... -
The effect of alpha1-adrenergic blockade on post-exercise brachial artery flow-mediated dilatation at sea-level and high-altitude
Tymko, Michael; Tremblay, Joshua; Howe, Connor; Willie, Christopher; Stembridge, Mike; Green, Daniel; Hoiland, Ryan; Subedi, Prajan; Anholm, James; Ainslie, Philip (Wiley, 2016-11-07)We examined the hypotheses that 1) at rest, endothelial function would be impaired at high- altitude compared to sea-level, 2) endothelial function would be reduced to a greater extent at sea-level compared to high-altitude ... -
The Effect Exercise Intensity and Duration Has On Substrate Oxidation in Upper
McGrigor, Craig (Cardiff Metropolitan University, 2014)Purpose: The purpose of this study was to determine the optimum intensity and duration to oxidise free fatty acids (FFA) during upper body arm ergometry over a 30-min exercise bout. Method: The sample population for this ...