Journal of hypertension
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Journal of hypertension · Nov 1999
Influence of demographic, anthropometric and lifestyle characteristics on heart rate and its variability in the population.
The purpose of this investigation was to assess the effects of age, gender, posture and their interactions, and of body mass index and lifestyle factors, on heart rate, its total variance and its variability in the frequency domain in a population-based sample of healthy subjects. ⋯ Age, gender and/or some lifestyle factors significantly affect heart rate and various components of its variability in the supine position and in response to standing. The results are similar for autoregressive modelling and fast Fourier transform, but may differ according to the units in which the spectral components are expressed.
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Journal of hypertension · Nov 1999
Randomized Controlled Trial Clinical TrialPROGRESS - Perindopril Protection Against Recurrent Stroke Study: characteristics of the study population at baseline. Progress Management Committee.
The primary aim of the Perindopril Protection Against Recurrent Stroke Study (PROGRESS) is to determine the effects of a long-term angiotensin converting enzyme (ACE)-inhibitor-based blood-pressure-lowering regimen on the risk of stroke among patients with a history of stroke or transient ischaemic attack (TIA). Secondary aims include investigation of the effects of treatment on total cardiovascular events, dementia and disability. ⋯ The successful completion of recruitment, together with current indicators of statistical power, suggest that PROGRESS should achieve its primary aim on schedule.