1. Puthucheary, Z., Harridge, S., Hart, N.: Skeletal muscle dysfunction in critical care: wasting, weakness, and rehabilitation strategies. Crit. Care Med. 38, S676–S682 (2010)
2. Needham, D.M., Truong, A., Fan, E.: Technology to enhance physical rehabilitation of critically ill patients. Crit. Care Med. 37, S436–S441 (2009)
3. Sugar, T.G., et al.: Design and control of RUPERT: A device for robotic upper extremity repetitive therapy. IEEE Trans. Neural Sys. Rehab. Eng. 15, 336–346 (2007)
4. Burgar, C.G., Lum, P.S., Shor, P.C., Machiel Van der Loos, H.F.: Development of robots for rehabilitation therapy: the Palo Alto VA/Stanford experience. J. Rehab. Res. Dev. 37, 663–673 (2000)
5. Hummelsheim, H., Maier-Loth, M.L., Eickhof, C.: The functional value of electrical muscle stimulation for the rehabilitation of the hand in stroke patients. Scand. J. Rehab. Med. 29, 3–10 (1997)