A lumbar support apparatus for a powered exoskeleton includes a support member and a lumbar support member. The support member includes a back portion, a first arm, and a second arm. The back portion has a first surface and a second surface that extends between a back portion first end and a back portion second end. The first arm extends from the back portion first end. The first arm defines a first attachment point for a first leg support. The second arm extends from the back portion second end. The second arm defines a second attachment point for a second leg support. The lumbar support member is disposed on the first surface of the back portion.