Patent attributes
A limb interface device for an exercise apparatus includes a handle member within an inner frame member rotatable about a first axis with a first joint, for gripping by a user. At least one outer support member supports the inner frame member. The inner frame member is rotatable about a second axis orthogonal to the first axis with a second joint. An outer arc member supports the at least one support member. The at least one support member is rotatable about a third axis orthogonal to the second axis with a third joint. An arm member supports the outer arc member. The outer arc member can rotate about a fourth axis that is orthogonal to the third axis with a fourth joint. The arm member can also be rotatable about a fifth axis that is longitudinal to the arm member and orthogonal to the fourth axis with a fifth joint.