Gloves and harnesses for allowing patients to do rehabilitation and reeducation exercises. A first version allows a therapist to exercise a second person's hand(s) including their fingers, wrists, and arms by overlying the palm(s) of the therapist's hand(s) over the dorsum back of the patient's hand(s). The therapist wears a glove(s) having fasteners extending from the sides of the pinkie, fourth finger, middle finger, index finger and thumb, and a wrist portion, for wrapping about the corresponding fingers and wrist of the patients hand(s). The fasteners can include hook and loop straps, and self adhesive straps, and the like. A second version is a grasp assistance glove used by a single person where a patient wears a glove(s) having fastener straps extending outward from the tips of the pinkie, fourth finger, middle finger, index finger, and thumb portions, and a fastener attached to the palm portion of the glove. An object such as a bar is grasped by the patient's gloved hand by having the straps of the fingers attached to the palm fasteners, with the fasteners being similar to those of the first version. A third version has a safety harness that can be used with or without the hand over hand glove system. The harness has a first belt section for wrapping about the waist of the therapist, and a second belt section for wrapping about both the waist and between the legs of the patient. The first and second belt sections can attach to the therapist and patient by hook and loop fasteners, self adhesive tape, buckle clasps and the like. The harness is useful to increase safety and to decrease a patient's fear of falling while the patient is performing rehabilitation and reeducation exercises.