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A compact, rugged, solid-state heart rate recorder (63 X 94 X 22 mm, 195 g) to measure normal daily heart rates over periods of up to 33 h is described. With an interval switch a selection can be a mean heart rate over 30, 60 or 120 sec. The ECG amplifier filter is equipped with an automatic gain control to eliminate R-wave amplitude changes during physical activity. A continuous acoustic check on correct electrode attachment and sufficient signal amplitude is possible by means of an earphone. Data may be stored on punch tape, tape recorder, or processed on-line, or plotted directly one a line writer to obtain a heart rate profile over the measured time. In 45 studies with adults and children the heart rate recorder has proven to be a reliable instrument.
W H Saris, and
P Snel, and
J Baecke, and
F van Waesberghe, and
R A Binkhorst
May 1981,
Medical & biological engineering & computing,
W H Saris, and
P Snel, and
J Baecke, and
F van Waesberghe, and
R A Binkhorst
November 1958,
Journal of applied physiology,
W H Saris, and
P Snel, and
J Baecke, and
F van Waesberghe, and
R A Binkhorst
March 1977,
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W H Saris, and
P Snel, and
J Baecke, and
F van Waesberghe, and
R A Binkhorst
January 1982,
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W H Saris, and
P Snel, and
J Baecke, and
F van Waesberghe, and
R A Binkhorst
January 1980,
The Journal of physiology,
W H Saris, and
P Snel, and
J Baecke, and
F van Waesberghe, and
R A Binkhorst
November 1979,
Medical & biological engineering & computing,
W H Saris, and
P Snel, and
J Baecke, and
F van Waesberghe, and
R A Binkhorst
June 2008,
Pacing and clinical electrophysiology : PACE,
W H Saris, and
P Snel, and
J Baecke, and
F van Waesberghe, and
R A Binkhorst
March 1965,
Public health reports (Washington, D.C. : 1896),
W H Saris, and
P Snel, and
J Baecke, and
F van Waesberghe, and
R A Binkhorst
February 1991,
Archives of disease in childhood,
W H Saris, and
P Snel, and
J Baecke, and
F van Waesberghe, and
R A Binkhorst
October 1969,
Research quarterly,
