IX. On some elementary principles in animal mechanics.—No. VIII. The law of fatigue

Abstract

In my last paper (No. VII.) I illustrated the Law of Fatigue by experiments made in lifting weights varying in amount, without rest, at a fixed rate of motion; I shall now illustrate the Law by experiments made in lifting a fixed weight at varying rates of motion, without rest, as before. Law of Fatigue. “ When the same muscle (or group of muscle) is kept in constant action until fatigue sets in, the total work done multiplied by the rate of work is constant. ”