Typically, I don't use measuring devices such as calipers, to tell me if my sculpture is "right". I am not blindly dependent on them because the results in clay can come across as a specimen of the figure.
After attending the Kansas City Art Institute years ago, I worked as a background artist in the animation department of Calvin Motion Pictures. While creating a recent sculpture depicting running horses, I referred to an animator's trick which is to "draw the verb". For instance, while horses are the noun . . . running is the verb.
The sculptor must understand locomotive anatomy; how the muscles bunch and stretch. The sculptor must know when and how to exaggerate a figure's form and anatomy. Below, is the initial block-in and work in progress. By narrowing the waist and lengthening the largest shape - the torso - a sensation of athleticism and speed is felt by the viewer.