Sprinters Attack the Ground (IMAGE) Southern Methodist University Caption Ken Clark, researcher in the SMU Locomotor Performance Laboratory, observes a world-class sprinter as she runs at top speed on the lab's custom high-speed force treadmill that allows the lab's researchers to capture and analyze hundreds of footfalls at precisely controlled speeds. Credit SMU Usage Restrictions Please credit SMU License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.