Abstract: Described is a machine for assisted physical activity exercise, comprising a base (4) and supporting means (2, 3) for a user, comprising a seat (3) and/or a backrest (2). The assisted physical activity exercise machine (1) comprises a training tool (6) mounted on the base (4). The training tool comprises an engagement portion (7), configured for being actuated by a user, and guiding means (8) associated with the engagement portion (7) for guiding it at least according to a lifting movement. The supporting means (2, 3) are mounted on the base (4) and comprise a slide (100) slidably mounted on the base (4) according to an adjustment movement. The slide (100) supports the seat (3) and/or the backrest (2).