Department of Rehabilitation Sciences, Graduate School of Medical Sciences, Kitasato University, Sagamihara 252-0373, Japan. Department of Intensive Care Center, Kitasato University Hospital, Sagamihara 252-0329, Japan. Department of Rehabilitation, School of Allied Health Sciences, Kitasato University, Sagamihara 252-0373, Japan. Department of Rehabilitation, Kitasato University Hospital, Sagamihara 252-0329, Japan. Department of Anesthesiology, School of Medicine, Kitasato University, Sagamihara 252-0373, Japan. Division of Intensive Care Medicine, Department of Research and Development Center for New Medical Frontiers, School of Medicine, Kitasato University, Sagamihara 252-0373, Japan.