Beat‐to‐beat variation of the heart rate was studied as a test of autonomic function.
Recordings were made during quiet breathing, deep breathing and tilting from supine to …

Five different methods of analysing RR interval (heart rate) variation were compared, using a
computer technique, in 61 diabetics with a wide range of responses to autonomic function …

Spectral analysis of the RR variability signal has been used for assessing the autonomic
regulation of heart rate in control subjects and in diabetic patients affected by autonomic …

The diagnosis of autonomic neuropathy frequently depends on results of tests which elicit
reflex changes in heart rate. Few well-documented normal ranges are available for these …

We performed four cardiovascular tests of autonomic function (deep breathing, lying to
standing, Valsalva manoeuvre, postural hypotension) and simultaneous 24h recordings of …

• Power spectral analysis of the heart rate was compared with standard tests of autonomic
function performed on 15 insulin-dependent diabetic patients with symptoms of autonomic …

Heart rate variability was measured in 77 healthy controls and 343 diabetic patients by a
count of the number of beat-to-beat differences greater than 50 ms in the RR interval during …

This study compares the sensitivity of electrocardiographic RR methods, used alone and
with respiration, for diagnosis of cardiac disautonomy in diabetic patients. In 12 diabetic …

To obtain a comparative assessment of 5 different clinical autonomic function tests as
related to age and gender in normal man, the beat-to-beat variation during deep breathing …

Early detection and a quantitative evaluation of the degree of diabetic autonomic neuropathy
were performed in 23 diabetic patients and 22 controls by computerized spectral analysis of …