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Baroreflex sensitivity and developmental coordination disorder

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Show simple item record Coverdale, Nicole 2011-03-08T17:27:17Z 2011-03-08T17:27:17Z 2011-03-08
dc.description.abstract Developmental coordination disorder (DCD) is a motor coordination disorder that is characterized by impairment of motor skills which leads to challenges with performing activities of daily living. Children with DCD have been shown to be less physically active and have increased body fatness. This is an important finding since a sedentary lifestyle and obesity are risk factors for cardiovascular disease. One indicator of cardiovascular health is baroreflex sensitivity (BRS), which is a measure of short term BP regulation that is accomplished through changes in HR. Diminished BRS is predictive of cardiovascular morbidity and mortality. The purpose of this study was to investigate BRS in 117 children aged 12 to 13 years with probable DCD (pOCO) and their matched controls with normal coordination. Following 15 minutes of supine rest, five minutes of continuous beat-by-beat blood pressure (Finapres) and RR interval were recorded (standard ECG). Spectral indices were computed using Fast Fourier Transform and transfer function analysis was used to compute BRS. High frequency and low frequency power spectral areas were set to 0.15-0.6 Hz and 0.04-0.15 Hz, respectively. BRS was compared between groups with an independent t-test and the difference was not significant. It is likely that a difference in BRS was not seen between groups since the difference in BMI between groups was small. As well, differences in BRS may not have manifested yet at this early age. However, the cardiovascular health of this population still deserves attention since differences in body composition and fitness were found between groups. en_US
dc.language.iso eng en_US
dc.publisher Brock University en_US
dc.subject Motor ability in children. en_US
dc.subject Clumsiness in children en_US
dc.subject Aorta -- Diseases en_US
dc.title Baroreflex sensitivity and developmental coordination disorder en_US
dc.type Electronic Thesis or Dissertation en_US M.Sc. Applied Health Sciences en_US Masters en_US
dc.contributor.department Applied Health Sciences Program en_US Faculty of Applied Health Sciences en_US

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