Stephen Vrska, a marathon and ultra runner from Chesterton, Indiana, first discovered the joy of running back in the 6th grade. “My middle school didn't offer football until the following year, so I ...

“Do you think I could beat a horse in a race?” It sounded like a joke whenever I asked. Almost everyone I talked to would laugh or do a double take. Then they would pause and think: Over what distance ...

Human locomotion is characterized by remarkable versatility, enabling smooth speed modulation, acceleration, deceleration, and transitions between gaits. This versatility is thought to emerge from ...