The invention relates to a rehabilitation children's sport stroller, comprising a frame (28), a seat (10), and a pivot device (16), which at least in some regions connects the seat (10) to the frame (28) pivotally about a seat pivot axis (S) and comprises a first joint (20) and a second joint (22), which are provided on the seat (10) on mutually opposing sides, wherein the first joint (20) and the second joint (22) can be locked, the first joint (20) comprising a first-joint operating element (40) for releasing the first joint (20). According to the invention, the second joint (22) is connected to the first-joint operating element (40) by means of a push-stable transfer device such that during an actuation of the first-joint operating element (40) the first joint (20) and the second joint (22) are released. Furthermore, the second joint (22) has a second-joint operating element for locking and releasing the second joint (22), wherein the second-joint operating element is connected to the first joint (20) by means of the push-stable transfer device (46) such that the first joint (20) is released when releasing the second joint (22).