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The laboratory protocol for determining accuracy of the multi-sensor board
| Stage | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|
| MPH | Sit | Stand | 1.8 | 2.5 | 3.0 | 3.5 | 4.5 | 4.5 | Sit |
| Grade (%) | N/A | N/A | 0 | 5 | 0 | 7.5 | 0 | 2.5 | N/A |
| Duration (min) | 3 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 5 |
| Walking | Running | ||||||||
Subjects always started and ended with a sitting stage. The initial work stage of the four walking and two running stages was always executed in a random order, and a given stage was terminated if the subject exceeded 85% of the age-predicted maximum heart rate
