Design and use of a leg support exoskeleton

A leg apparatus configured to be coupled to a leg of a wearer, the leg apparatus comprising:

• a first link;
• a second link, coupled to the first link and capable of flexion and extension motion relative the first link;
• and
• a force generator, comprising a first end and a second end wherein the first end of the force generator is coupled to the first link,
• wherein
• while the leg of the wearer is on a ground, the second end of the force generator is engaged with the second link when the first link and the second link flex relative to each other, and
• while the leg of the wearer is not on the ground, the second end of the force generator is disengaged from the second link, and the first link and the second link are free to flex and extend relative to each other.

A leg apparatus configured to be coupled to a leg of a wearer, the leg apparatus comprising:

• a first link;
• a second link, coupled to the first link and capable of flexion and extension motion relative the first link;
• a force generator, comprising a first end and a second end, wherein the first end of the force generator is coupled to the first link;
• and
• a manual tab, having at least a first position and a second position and operable by the wearer, wherein:
• when the manual tab is in the first position, the second end of the force generator engages with the second link and the force generator provides a resistance torque in response to flexion of the first link and the second link relative to each other and
• when the manual tab is in the second position, the second end of the force generator is disengaged the second link, and the first link and the second link are free to flex and extend relative to each other.