Exercise machine and method for use in a supine position

An exercise machine for use by an exerciser in a supine position, comprising:

• a mobile base having a forward end and a rear end, the base having a plurality of ground-engaging wheels and an anchoring system configured to arrest movement of the base in an operative position of the exercise machine;
• an upright support extending upwards from the mobile base;
• an upper support assembly extending in a generally forward direction from the upright support;
• an exercise device suspended from the upper support assembly, and a load associated with the exercise device for adjusting exercise resistance;
• the upper support assembly comprising a four bar pivot linkage and a first actuator configured to control the four bar pivot linkage to adjust the height of the exercise device;
• the four bar pivot linkage comprising an upper portion of the upright support, a forward support extending parallel to the upper portion of the upright support, an upper pivot link having a first pivot connection to the upper portion of the upright support and a second pivot connection to the forward support, and a lower pivot link having a third pivot connection to the upper portion of the upright support below the first pivot connection and a fourth pivot connection to the forward support below the second pivot connection;
• and
• the forward support having a lower portion extending downwards from the four bar pivot linkage and spaced forward from the upright support;
• wherein the exercise device is located on the lower portion of the forward support and spaced below the four bar pivot linkage;
• and
• the mobile base is configured to extend partially under a bed with the upright support located on one side of the bed and the exercise device suspended over the bed in the operative position in which the exercise device is accessible by the exerciser in the bed to perform exercise.