1. IEN Center for Wearable Intelligent Systems and Healthcare at the Institute for Electronics and Nanotechnology Georgia Institute of Technology Atlanta GA 30332 USA
2. George W. Woodruff School of Mechanical Engineering Georgia Institute of Technology Atlanta GA 30332 USA
3. Department of Human Development Nursing Science College of Nursing University of Illinois Chicago 845 S. Damen Ave., MC 802 Chicago IL 60612 USA
4. Department of Biobehavioral Nursing Science College of Nursing University of Illinois Chicago 845 S. Damen Ave., MC 802 Chicago IL 60612 USA
5. Wallace H. Coulter Department of Biomedical Engineering Georgia Tech and Emory University School of Medicine Atlanta GA 30332 USA
6. Parker H. Petit Institute for Bioengineering and Biosciences Institute for Materials Institute for Robotics and Intelligent Machines Georgia Institute of Technology Atlanta GA 30332 USA