| 摘要 |
A power measurement apparatus (W) is provided that can prevent loss of accuracy. A distance measurement sensor attached to a bicycle (B) detects the distance to the head of the cyclist on the bicycle (B). The power measurement apparatus (W) includes a frontal projected area calculating part (W22) that calculates the frontal projected area projected on the plane perpendicular to the ground, based on distance data indicating the distance output by the distance measurement sensor. |
