Bidirectional resistance apparatus for exercise equipment are disclosed.
An example exercise apparatus comprises a resistance source coupled to a
cable between first and second ends of the cable, a rotational resistance
mechanism coupled to the first and second ends of the cable, and an
exercise arm coupled to the rotational resistance mechanism to rotate in
first and second directions, the rotational resistance mechanism to apply
a substantially constant resistance to the exercise arm when the exercise
arm is rotated in the first and second directions.