A movement assistance mechanism for a door, the movement assistance mechanism comprising: a housing extending along a longitudinal axis defining a proximal direction and an opposite distal direction, the housing defining a first track including a first longitudinal portion extending between and connecting a first proximal end portion and a first distal end portion, the first distal end portion defining a first jog that is angled relative to the first longitudinal portion; a latch mechanism movably mounted to the housing, the latch mechanism engaged with the first track such that the first track guides movement of the latch mechanism between a proximal home position and a distal cocked position in which the latch mechanism is engaged with the first jog; a spring engaged between the housing and the latch mechanism, the spring exerting a proximal biasing force urging the latch mechanism toward the home position; and a gear train comprising: a pinion gear rotatably mounted to the housing and operable to engage with a first rack member exterior of the housing such that movement of the door alongside the first rack member causes the pinion gear to rotate; and a second rack member defining a rack gear engaged with the pinion gear such that rotation of the pinion gear causes a corresponding linear movement of the second rack member; wherein the second rack member is coupled with the latch mechanism such that rotation of the pinion gear in a first rotational direction distally drives the latch mechanism from the home position toward the cocked position, thereby storing mechanical energy in the spring; and wherein the first jog is configured to retain the latch mechanism in the cocked position against the biasing force of the spring. a housing extending along a longitudinal axis defining a proximal direction and an opposite distal direction, the housing defining a first track including a first longitudinal portion extending between and connecting a first proximal end portion and a first distal end portion, the first distal end portion defining a first jog that is angled relative to the first longitudinal portion; a latch mechanism movably mounted to the housing, the latch mechanism engaged with the first track such that the first track guides movement of the latch mechanism between a proximal home position and a distal cocked position in which the latch mechanism is engaged with the first jog; a spring engaged between the housing and the latch mechanism, the spring exerting a proximal biasing force urging the latch mechanism toward the home position; and a gear train comprising: a pinion gear rotatably mounted to the housing and operable to engage with a first rack member exterior of the housing such that movement of the door alongside the first rack member causes the pinion gear to rotate; and a second rack member defining a rack gear engaged with the pinion gear such that rotation of the pinion gear causes a corresponding linear movement of the second rack member; a pinion gear rotatably mounted to the housing and operable to engage with a first rack member exterior of the housing such that movement of the door alongside the first rack member causes the pinion gear to rotate; and a second rack member defining a rack gear engaged with the pinion gear such that rotation of the pinion gear causes a corresponding linear movement of the second rack member; wherein the second rack member is coupled with the latch mechanism such that rotation of the pinion gear in a first rotational direction distally drives the latch mechanism from the home position toward the cocked position, thereby storing mechanical energy in the spring; and wherein the first jog is configured to retain the latch mechanism in the cocked position against the biasing force of the spring.