Hi colleagues,

we are currently building a treadmill with force plate (vertical only) under the belt. Our initial pilot work showed that foot contact time is valid, and magnitude of vertical force is also minimal error as the treadmill stays at 0% incline. What we want to build is to track force (both impact/active, if impact is present) and create a model of force output consistency. It is obvious that force output should be fairly consistent at what is considered "comfortable pace" for many distance runners. However, we have been capturing that once runners (of various levels) start to go above the lactate threshold pace, then force output starts to vary step by step.

A model we want to create is fairly simple using LabView, and we will use algorithm to detect the force output consistency first and then add a line of 10, 20, 30...% lines so we know once the force consistency starts to vary, it will be seen on the screen. This is to share the output data immediately to coaches and runners who are on the treadmill.

After all, the main aim is to know the pace threshold from the kinetic data (and hope to match it with physiological pace threshold). I am not sure if pace inconsistency would lead to running-related injury but it would along with a great magnitude of training load at the pace.

Any critiques, comments are very much welcome for this topic, I would love to hear experts opinion on this.

Thank you!


Kimitake (Kimi) Sato, Ph.D., CSCS, USAW, PES, TPI Fitness III.
International Relation Coordinator
Dept. of Sport, Exercise, Recreation, & Kinesiology (SERK), PO Box 70671
East Tennessee State University, Johnson City, TN 37614-0654

Sport Biomechanist; ETSU designated Olympic Training Site
High Performance Coach; Center of Excellence for Sport Science and Coach Education

Office Location: E 233 in Mini-Dome
Office TEL: (423) 439-5138
Lab: (423) 439-4655
email: satok1@etsu.edu
Skype ID: jpnsatok
Twitter: @jpnsatok