Trotting is running when the impulsion forward is not so strong, and the movements are less rapid, which renders it more applicable to uneven ground, where it is necessary to choose the place where the foot is to be placed at each step.

The greatest attainable speed for a man is, according to the brothers Weber, seventeen miles in an hour; but if this speed has ever been maintained for one hour, which is doubtful, it could not certainly be continued much longer. The maximum of speed attained in the gymnasium of Amoros was twenty-five miles in two hours and forty-five minutes, that is, about nine miles an hour.