The structures that transmit force from muscle cells to bone are critical components of your running health and economy in addition to a common site of injury. Today we learn all about tendons and sinews from the world's leading expert on this topic.

A thought-provoking analysis of training dogma, practices, and approaches from one of the world's leading experts on program development.

Legendary exercise geneticist Claude Bouchard, PhD joined me for a pragmatic discussion.

My guest today was, Rodger Kram PhD, a leading scientist in the field of biomechanics with research foci in: (1) Partitioning of the rate of metabolic energy expenditure into its biomechanical constituents; AND (2) The influences of internal and external forces on the way humans and other animals walk and run. His group developed the force sensing treadmill and they have generated novel insight into many of the factors important to ultra runners, especially the biomechanics, energetics, and neural control of walking and running. He joined us from the University of Colorado at Boulder.