A chair assembly, comprising: a first chair structure; a second chair structure movable relative to the first chair structure between a first position and a second position; an actuator assembly operably coupled to the second chair structure and adapted to move the second chair structure between the first and second positions, wherein at least a portion of the actuator assembly travels in a first direction as the second chair structure is moved from the first position to the second position; a control input assembly operably coupled to the first chair structure, wherein at least a portion of the control input assembly may be actuated by a seated user; a control link assembly operably coupling the control input assembly with the actuator assembly to move the second chair structure between the first and second positions upon an input by a seated user to the control input assembly, the control link assembly comprising: a first shaft having a first end operably coupled to the control input assembly by a first universal joint assembly, and a second end, wherein the first shaft is rotatable about a first axis; a second shaft having a first end, and a second end operably coupled to the actuator assembly, wherein the second shaft is rotatable about a second axis that is substantially orthogonal to the first axis and to the first direction; and said first universal joint assembly and a second universal joint assembly each operably coupling the second end of the first shaft member to the first end of the second shaft; wherein actuation of the control input by a seated user moves the second chair structure between the first and second positions. a first chair structure; a second chair structure movable relative to the first chair structure between a first position and a second position; an actuator assembly operably coupled to the second chair structure and adapted to move the second chair structure between the first and second positions, wherein at least a portion of the actuator assembly travels in a first direction as the second chair structure is moved from the first position to the second position; a control input assembly operably coupled to the first chair structure, wherein at least a portion of the control input assembly may be actuated by a seated user; a control link assembly operably coupling the control input assembly with the actuator assembly to move the second chair structure between the first and second positions upon an input by a seated user to the control input assembly, the control link assembly comprising: a first shaft having a first end operably coupled to the control input assembly by a first universal joint assembly, and a second end, wherein the first shaft is rotatable about a first axis; a second shaft having a first end, and a second end operably coupled to the actuator assembly, wherein the second shaft is rotatable about a second axis that is substantially orthogonal to the first axis and to the first direction; and said first universal joint assembly and a second universal joint assembly each operably coupling the second end of the first shaft member to the first end of the second shaft; a first shaft having a first end operably coupled to the control input assembly by a first universal joint assembly, and a second end, wherein the first shaft is rotatable about a first axis; a second shaft having a first end, and a second end operably coupled to the actuator assembly, wherein the second shaft is rotatable about a second axis that is substantially orthogonal to the first axis and to the first direction; and said first universal joint assembly and a second universal joint assembly each operably coupling the second end of the first shaft member to the first end of the second shaft; wherein actuation of the control input by a seated user moves the second chair structure between the first and second positions.