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Keywords: head-up tilt test
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Clin Sci (Lond) (1998) 95 (1): 43–52.
Published: 01 July 1998
... the presence of sympathetic hyperactivity in hypertension associated with anxiety symptoms. 2. Neuroautonomic cardiovascular control was evaluated using short-time power spectral analysis of RR and arterial pressure variability at baseline and after the head-up tilt test. The two spectral components...
Clin Sci (Lond) (1997) 93 (4): 309–316.
Published: 01 October 1997
... volunteers (68 ± 7 years) underwent a 30 min head-up tilt test at 60°. Haemodynamics were measured every 5 min and blood samples for neurohormone measurement were drawn at baseline, 5, 10, 15 and 30 min into the test. Heart rate variability was analysed in 5 min segments at the baseline, and during the test...