References
- Schulman J. L., Reisan J. M. An objective measure of hyperactivity. American Journal of Mental Deficiency 1959; 64: 455–456
- Taylor C. B., Kraemer H. C, Bragg D. A., Miles L. E., Rule B., Savin W. M., DeBusk R. F. A new system for long-term recording and processing of heart rate and physical activity in outpatients. Comp. Biomed. Res 1982; 15: 7–17
- Van Hilten J. J., Middelkoop H. A. M., Kuiper S. I. R., Kramer C. G. S., Roos R. A. C. Where to record motor activity: an evaluation of commonly used sites of placement for activity monitors. Electroencephalography and Clinical Neurophysiology 1993; 89: 359–362
- Fujimoto T., Shimooki S., Tamura T., Togawa T. Measurement of physiological movement in normal and patients with hemiparalysis by a portable acceleration monitoring system. Journal of Ambulatory Monitoring 1996; 9: 149–162
- Wong T. C, Webster J. G., Montoye H. J., Washburn R. Portable accelerometer device for measuring human energy expenditure. IEE Transactions on Biomedical Engineering 1981; BME-28: 467–471
- Montoye H. J., Washburn R., Servais S., Ertl A., Webster J. G., Nagle F. J. Estimation of energy expenditure by a portable accelerometer. Medical Science Sports Exercise 1983; 15: 403–407
- Redmond D. P., Frederick W. H. Observation on the design and specification of a wrist-worn human activity monitoring system. Behavior Research Methods, Instruments and Computers 1985; 17: 659–669
- Meijer G. A. L., Westerterp R., Verhoeven F. M. H., Koper H. B. M., Ten Hoor F. Methods to assess physiological activity with special reference to motion sensors and accelerometers. IEEE Transactions on Biomedical Engineering 1991; 38: 221–229
- Makikawa M., Imai K., Shindoi T., Tanooka K., Iizumi H., Mitani H. Microprocessor-based ambulatory biosignal memory device (in Japanese with English Abstract). Trans. SICE 1993; 29: 888–895
- Makikawa M., Iizumi H. Development of an ambulatory physical activity memory device and its application for the categorization of actions in daily life. MEDIFO 95 Proceedings 1995; 747–750