 Bauer sided with work published in 1851 by Julius Konrad Werner, director of the Orthopedic Institute of Konigsberg, Prussia; Bauer and Werner, in turn, were contradicting research published by Jacques Mathieu Delpech in 1823.Tendons are soft tissue structures that respond to changes in mechanical loading.Bulk mechanical properties, such as modulus, failure strain, and ultimate tensile strength, decrease over long periods of disuse as a result of micro-structural changes on the collagen fiber level.