US Patent 9775764 Rear chain stretcher

An exercise device for stretching the calf muscles and Achilles tendon of a user. The exercise device includes a rod with a pair of grips, a pair of straps, and a foot platform. The pair of straps has two ends; or a first end and a second end. The first end of each strap is affixed to opposing distal ends of the rod. The second end of the pair of straps is affixed to distal, or outside, ends of the foot platform. The exercise device can have a rotatable sleeve with a plurality of surface protuberances on the sleeve. The rotatable sleeve is mounted on the rod between the pair of grips. The rotatable sleeve can be used as a massager by rolling the sleeve over a muscle while gripping the grips on either side of the sleeve.