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Do Individuals with Intellectual Disability Have a Lower Peak Heart Rate and Maximal Oxygen Uptake?
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Hilgenkamp, Thessa Irena Maria; Baynard, Tracy – Journal of Applied Research in Intellectual Disabilities, 2018
Background: Individuals with intellectual disability (ID) have very low physical activity and low peak oxygen uptake (VO[subscript 2peak]), potentially explained by physiologically lower peak heart rates (HR[subscript peak]). Method: The present authors performed a retrospective analysis of a large data set of individuals with intellectual…
Descriptors: Physiology, Down Syndrome, Intellectual Disability, Physical Activity Level
Autonomic Response to Upright Tilt in People with and without Down Syndrome
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Agiovlasitis, Stamatis; Collier, Scott R.; Baynard, Tracy; Echols, George H.; Goulopoulou, Styliani; Figueroa, Arturo; Beets, Michael W.; Pitetti, Kenneth H.; Fernhall, Bo – Research in Developmental Disabilities: A Multidisciplinary Journal, 2010
This study examined whether the autonomic response to passive upright tilt as evidenced by changes in measures of heart rate and blood pressure variability differs between individuals with DS and without DS. Beat-to-beat blood pressure was measured in 26 individuals with Down syndrome (DS) and 11 individuals without DS during 5 min of rest and 5…
Descriptors: Down Syndrome, Metabolism, Responses, Individual Differences
Heart Rate Complexity in Response to Upright Tilt in Persons with Down Syndrome
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Agiovlasitis, Stamatis; Baynard, Tracy; Pitetti, Kenneth H.; Fernhall, Bo – Research in Developmental Disabilities: A Multidisciplinary Journal, 2011
People with Down syndrome (DS) show altered autonomic response to sympatho-excitation. Cardiac autonomic modulation may be examined with heart rate (HR) complexity which is associated uniquely with cardiovascular risk. This study examined whether the response of HR complexity to passive upright tilt differs between persons with and without DS and…
Descriptors: Metabolism, Body Composition, Intervals, Down Syndrome
Cardiac Autonomic Control in Individuals With Down Syndrome
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Goulopoulou, Styliani; Baynard, Tracy; Collier, Scott; Giannopoulou, Ifigenia; Figueroa, Arturo; Beets, Michael; Pitetti, Kenneth; Fernhall, Bo – American Journal on Mental Retardation, 2006
Our goal in this study was to compare cardiac autonomic control at rest between 50 individuals with Down syndrome and 24 control participants without disabilities. Resting autonomic function was assessed using analysis of heart rate variability. Participants with Down syndrome had reduced total heart rate variability, which indicates possible…
Descriptors: Physical Fitness, Down Syndrome, Obesity, Metabolism
Resting Metabolic Rate is Not Reduced in Obese Adults With Down Syndrome
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Fernhall, Bo; Figueroa, Arturo; Collier, Scott; Goulopoulou, Styliani; Giannopoulou, Ifigenia; Baynard, Tracy – Mental Retardation: A Journal of Practices, Policy and Perspectives, 2005
Resting metabolic rate (RMR) of 22 individuals with Down syndrome was compared to that of 20 nondisabled control individuals of similar age (25.7 and 27.4 years, respectively). Using a ventilated hood system, we measured RMR in the early morning after an overnight fast. Peak aerobic capacity Volume of Oxygen (VO2 peak) and body composition were…
Descriptors: Down Syndrome, Obesity, Physical Fitness, Metabolism