Abstract: An exercise apparatus includes a frame, a pair of opposed seat assemblies, each of which moves between a side and a joint of the base of the frame, a two-sided foot pad assembly that moves between joints of the base of the frame, and a two-sided handlebar assembly that moves along a curved raised section of the frame. A user sits on a seat, places his/her feet on a foot pad of the foot pad assembly, and grabs a facing handlebar. A user may resist or accept motion of the handlebar and foot pad assemblies cause by the other user. Users may take turns in causing such motion.