Patent ID: 8343016

Claim:
A motor-less, leg-powered curved treadmill comprising: a treadmill frame; a set of respective front and rear pulley end rollers for rotation, said front and rear pulleys supporting a closed loop treadmill belt; said closed loop treadmill belt comprising a plurality of parallel slats oriented perpendicular to an axis of rotation of said belt, said parallel slats attached to each other in a resilient fashion; said closed loop treadmill belt being of such a length as compared to the distance between the end rollers to permit it to assume a required concave upper contour; a means for slackening an upper concave portion while simultaneously keeping a lower portion of the belt taut, preventing said lower portion from drooping down during rotation and exertion of walking or running force upon said upper concave portion of said closed loop treadmill belt; wherein each said slat is made of a material with sufficient resiliency and strength and weight to lie on and conform to a concave row of upper support peripheral ball bearings located at each peripheral side of said upper portion of said motor-less, leg-powered curved treadmill.