An exercise rehabilitation harness to secure about an orthotic boot includes a toe cap to receive a toe portion of the boot. A heel strap includes a heel strap coupling member to be disposed on a backside of a heel portion of the boot, and first and second heel strap segments to extend along opposing sides of a foot portion of the boot from the toe cap to second ends to be interconnected by the heel strap coupling member. An ankle strap includes an ankle strap coupling member and an ankle strap segment to wrap around an ankle portion of the boot vertically above the heel strap with opposing ends to be interconnected by the ankle strap coupling member. A connector element to connect to exercise equipment is attached to the ankle strap segment so as to be disposed on a backside of the ankle portion of the orthotic boot.