In any survey of the fundamental capacities of motor control the factor of speed of simple movement is obvious as one of the basic essentials which underlie all the developed complexities of movement. This fundamental capacity for speed in a simple repeated movement we call motility, and the motion selected is an easy movement of the forearm in which the finger taps a telegraph key. This type of movement is selected because it is one of the most rapid of the voluntary movements; it is clearly developed, is very simple, and requires no learning. It is assumed that the ability shown in this movement is, in general, indicative of corresponding ability in other parts of the body.
Proceedings of the Iowa Academy of Science
©1920 Iowa Academy of Science, Inc.
Ream, Merrill J.
"A Standardized Measure of Motility,"
Proceedings of the Iowa Academy of Science, 27(1), 238-239.
Available at: https://scholarworks.uni.edu/pias/vol27/iss1/49