The basis for activity controlled rate variable cardiac pacemakers: an analysis of mechanical forces on the human body induced by exercise and environment.

Pacing and Clinical Electrophysiology : PACE
E AltR Baker

Abstract

We conducted tests on six healthy volunteers and six pacemaker patients. With the aid of three straight line frequency acceleration pickups attached to the body, the mechanical signals were recorded on the three axes during different activities. Along with standardized exercise on bicycle and treadmill ergometers, we tested the influence of household activities and interference influences. The results were analyzed in terms of the amplitude and frequency content of the signals. For walking activities, we found a signal amplitude increasing in a largely linear fashion with the walking speed, the signal amplitudes being approximately twice as high on the vertical axis as on the other two axes. Exercise on the bicycle ergometer produced mechanical signals of clearly lower amplitude than comparable walking activities. The Fast-Fourier analysis showed amplitude peaks in the low frequency range of 1 to 4 Hz for all forms of physiological exercise, while interference influences showed amplitude peaks mainly in the range above 8 Hz. The use of a straight line-frequency acceleration pickup and a corresponding low pass filter might be a way of reducing the effect of unphysiological interference influences on an activity controlled pacema...Continue Reading

References

Oct 1, 1988·Pacing and Clinical Electrophysiology : PACE·C P LauA J Camm
Apr 1, 1986·Biomedizinische Technik. Biomedical Engineering·H HeuerJ F Müller-Rochholz
Apr 1, 1980·Biophysical Journal·G Oster, J S Jaffe

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Citations

Mar 1, 1993·Clinical Cardiology·D KatritsisA J Camm
Mar 10, 2000·Cardiology Clinics·S K Leung, C P Lau
Dec 19, 1998·Journal of Cardiopulmonary Rehabilitation·C T SharpR G Haennel
Apr 1, 2008·Circulation. Arrhythmia and Electrophysiology·Michael R RosenRichard B Robinson
Apr 29, 1998·Pacing and Clinical Electrophysiology : PACE·S GarrigueJ Clémenty
Nov 25, 1998·Pacing and Clinical Electrophysiology : PACE·H TheresK Prest-Berg
Dec 1, 1992·Pacing and Clinical Electrophysiology : PACE·E Erdelitsch-ReiserK Kochsiek
Aug 1, 1992·Pacing and Clinical Electrophysiology : PACE·H Mond, N Strathmore
Mar 1, 1992·Pacing and Clinical Electrophysiology : PACE·C P LauS Song
Nov 1, 1992·Pacing and Clinical Electrophysiology : PACE·U BorstS Kaye
Aug 1, 1992·Pacing and Clinical Electrophysiology : PACE·C P Lau
Mar 1, 1993·Pacing and Clinical Electrophysiology : PACE·R G CharlesB L Westrum
Nov 1, 1996·Pacing and Clinical Electrophysiology : PACE·M SchmidtE Alt
Aug 1, 1996·Pacing and Clinical Electrophysiology : PACE·S E GreenhutC P Lau
Nov 1, 1994·Pacing and Clinical Electrophysiology : PACE·V A MahauxH Kulbertus
Nov 1, 1992·Pacing and Clinical Electrophysiology : PACE·V MahauxH Kulbertus
Nov 1, 1992·Pacing and Clinical Electrophysiology : PACE·M G BongiorniC Leonardi
Nov 1, 1992·Pacing and Clinical Electrophysiology : PACE·J ZarlingJ Sieckhaus
Feb 1, 1992·Pacing and Clinical Electrophysiology : PACE·D W BacharachJ M Kelly
Jun 1, 1990·Pacing and Clinical Electrophysiology : PACE·C P Lau
Nov 1, 1992·Pacing and Clinical Electrophysiology : PACE·J SnoeckH Heuten
Nov 1, 1992·Pacing and Clinical Electrophysiology : PACE·V MahauxH Kulbertus

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