a support structure supporting a resistance assembly and having a base portion;

first and second arm assemblies mounted to said support structure at a middle portion spaced apart from said base portion, at least a portion of each of said arm assemblies being movable laterally relative to said support structure; and

at least one cable extending from said resistance assembly to said arm assemblies,

wherein an elongate member of each arm assembly is selectively pivotable in a first plane between an upper position and a lower position; and is selectively pivotable in a second plane between an inner position and an outer position, and

further comprising at least one foot pedal located adjacent said base portion of said support structure for actuating a locking pin that engages a locking pivot plate of at least one of said arm assemblies so as to selectively enable at least one of the elongate members to be moved relative to the support structure between the inner and outer position and locked in a desired position, said locking pin and said locking pivot plate being disposed adjacent said middle portion of said support structure away from the base portion,

a push member coupling said foot pedal at said base portion to said locking pin at said middle portion, the locking pin being disposed atop the push member, an opposite end of the push member being mounted to the foot pedal at the base portion of the support structure, such that the length of the push member extends from the base portion to the middle portion of the support structure adjacent the arm assemblies, the entire length of the push member extending between the foot pedal at the base portion and the locking pin at the middle portion being enclosed within a housing of the support structure.