Patent ID: 8043195
Filing Date: 2011-10-25
Classification: A63B

Abstract:
1. An exercise apparatus comprising: a support frame upon which is mounted a track, the track substantially conforming to a runner's footpath while striding; a first foot engaging support secured to the track for movement thereabout while exercising; a resistance assembly secured to the first foot engaging support for applying resistance as a user moves the first foot engaging support about the track; and wherein the shape of the track is approximately formed in accordance with the formulas x=L*cos(c)−M*cos(a−b) and y=L*sin(c)−M*sin(a−b), where c is thigh angle relative to a horizontal at a hip joint, a is knee angle, b is 2π−c, L is femur length, and M is tibia length plus shoe sole thickness.