1. Department of Physiology, Feinberg School of Medicine; Northwestern University; Chicago IL USA
2. Department of Preventative Medicine; Northwestern University; Chicago IL USA
3. McCormick Biomedical Engineering Department; Northwestern University; Evanston IL USA
4. Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine; Northwestern University; Chicago IL USA
5. Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine; Northwestern University; Chicago IL USA