History of the Lange skinfold caliper
The Lange skinfold caliper is mostly unchanged from the original design over 50 years ago! The device was developed in the Aeronautical Research Laboratory at the Univeristy of Kentucky ( Department of Mechanical Engineering). Dr. Karl O. Lange was appointed laboratory director in 1953 and the caliper was developed as part of Dr. Lange’s research interest. See the original patent below.