1. P. B. Arnold, P. P. McVey, W. J. Farrell, T. M. Deurloo, and A. R. Grasso, “Functional electric stimulation: its efficacy and safety in improving pulmonary function and musculoskeletal fitness,” Arch. Phys. Med. Rehabil. 73 (7), 665–668 (1992).
2. S. Cirak, V. Arechavala-Gomeza, M. Guglieri, L. Feng, S. Torelli, K. Anthony, S. Abbs, M. E. Garralda, J. Bourke, D. J. Wells, et al., “Exon skipping and dystrophin restoration in patients with duchenne muscular dystrophy after systemic phosphorodiamidate morpholino oligomer treatment: an open-label, phase 2, dose-escalation study,” Lancet 378 (9791), 595–605 (2011).
3. H. M. Herr and A. M. Grabowski, “Bionic ankle-foot prosthesis normalizes walking gait for persons with leg amputation,” Proc. R. Soc. B 279, 457–464 (2012).
4. M. Raibert, “Alphadog, the rough-terrain robot,” in Proc. 15th Int. Conf. on Climbing and Walking Robots and the Support Technologies for Mobile Machines “Adaptive Mobile Robotics” Baltimore, July 23–26, 2012 (World Sci., 2012), p. 7.
5. K. Clarke and J. Still, “Gait analysis in the mouse,” Physiol. Behavior 66 (5), 723–729 (1999).