Omron Corporation

Omron Healthcare Company Ltd.

Hiromi Matsumoto

Tatsuya Kobayashi

Nobuo Kubo

Toshikazu Shiga

Manabu Yoshimura

Kiichiro Miyata

In an exercise machine, when a measurement starts, an electrocardiographic signal is detected by an electrocardiographic sensor(ST), a load drive is started (ST), and heartbeat rate intervals of the electrocardiographic signal are sequentially obtained. A fluctuation of heartbeat rate intervals PI(n) % is obtained from a calculation formula in which the RR interval RR(n+1) of the current heartbeat is subtracted from the RR interval RR(n) of the previous heartbeat, which is then divided by RR(n) and multiplied by 100% (ST). Entropy is calculated from 128 pieces of such PI (ST). From the change of the entropy under the gradually increasing load (ST), a minimum point of the entropy is obtained, which point is designated as an anaerobic threshold point (ST). The load of the exercise machine is controlled employing this anaerobic threshold.

Exercise machine, physical strength evaluation method and pulse rate meter

A body motion detector, to be attached to or carried by a user for detecting body motions of the user, uses a plurality of sensors each for detecting body motions in a specified direction to output a body motion signal according to the user's body motion. These sensors are disposed so as to detect the body motion in different directions. One of these sensors are selected by carrying out calculations on signals outputted from the sensors. The user's body motion is detected by using selectively output signals from the selected body motion sensor. The body motion detector may also include a component for detecting the orientation of the body motion detector itself from signals outputted from these sensors and another component for detecting the user's body motions by carrying out calculations on the signals outputted from these sensors, corresponding to the orientation as detected by the orientation detecting component.

Body motion detector

Growing community of inventors

Kyoto, Japan

Hiromi Matsumoto