| 摘要 |
A step rate optimization device (12). The device includes a timer, a pedometer, an arterial waveform sensor (24), a processor and an indicator (16). The timer is adapted to measure a predetermined period of time and issue a first signal indicative thereof. The pedometer is adapted to measure the number of a user's steps over the predetermined period of time and issue a second signal indicative thereof. The arterial waveform sensor (24) is adapted to issue a third signal indicative of the user's arterial pulse waveform over the predetermined period of time. The processor is adapted to receive said first, second and third signals and determine and issue a fourth signal indicative of the user's dominant stride rate frequency, the user's dominant pulse rate waveform frequency and the interaction of the user's dominant stride rate frequency and the user's dominant pulse rate waveform frequency in the range of approximately 0-8 Hz. The indicator (16) is adapted to indicate to the user (10) a display indicative of a substantially sub-optimal relationship between the user's pulse rate and stride rate when the fourth signal indicates the user's dominant stride rate frequency to be at about 2-3 Hz and having a larger amplitude than the component of the user's dominant pulse waveform frequency at about 4-7 Hz and a display indicative of a substantially optimal relationship between the user's pulse rate and stride rate when the fourth signal indicates the user's dominant stride rate frequency component to be at about 4-7 Hz and having a larger amplitude than the component of the user's dominant pulse waveform frequency at about 2-3 Hz.
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