Abstract: The present invention relates to an apparatus for mobilizing the metatarsophalangeal (MTP) joint in a toe, especially after prolonged immobilization. It includes a member having a first curved surface for facilitating the rolling of the member and a second surface for receiving the plantar portion of a human foot, including a portion of the ball of the foot and at least one toe. The apparatus further includes a retainer for securing a single toe to the member. In use, a patient places a foot on the second surface of the member with the ball of the foot and at least a to-be-treated toe contacting the second curved surface. Then, using the retainer, the single to-be-treated and mobilized toe is secured to the member. Thereafter, the patient may impose either plantarflexion or dorsiflexion motion to the single to-be-treated toe by rolling the member either forward or backward.