A wrist-mounted arterial pulse interval and movement recording system.
A wrist movement and arterial pulse interval recording system has been developed for continuous data acquisition in studies of activity/rest time ratios, sleep quantity and quality, general activity level, resting heart rate and circadian rhythms. The system employs a wrist-mounted piezoelectric sensor, a low-power 8-bit one-chip microcomputer and a 512 KB EEPROM. The microcomputer detects whether the wrist is moving or inactive; if it is moving, wrist movement is stored into memory. If the wrist is at rest, the arterial pulse interval is continuously detected and stored. After recording, these stored data are downloaded to a desktop computer and analyzed.
Department of Electronics, Hiroshima Institute of Technology, Hiroshima 731-5193, Japan.
Fumiteru
F
Sakyou
Yoshiharu
Y
Yonezawa
Hiromichi
H
Maki
Hidekuni
H
Ogawa
Allen W
AW
Hahn
W Morton
WM
Caldwell
D000328:Adult; D018660:Blood Pressure Monitoring, Ambulatory / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D018670:Monitoring, Ambulatory / Q000295:instrumentation* / Q000379:methods; D009068:Movement / Q000502:physiology*; D017534:Radial Artery / Q000502:physiology; D012680:Sensitivity and Specificity; D014159:Transducers; D014953:Wrist / Q000098:blood supply / Q000502:physiology*