Heart rate complexity in response to upright tilt in persons with Down syndrome.


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 whether… (More)
DOI: 10.1016/j.ridd.2011.08.015

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