1. Bard, B (1963). Energy expenditure of hemiplegic subjects during walking. Arch. phys. Med. Rehabil., 44, 368–370.
2. Chantraine, A & Onkelinx, A (1975). Analysis of compensatory muscles during walking in paraplegic patients. Scand. J. Rehab. Med., 7, 9–12.
3. Clinkingbeard, J R, Gersten, J W & Hoehn, D (1964). Energy cost of ambulation in traumatic paraplegic. Am. J. Phys. Med., 43, 157–165.
4. Fisher, S V & Gullickson, G (1978). Energy cost of ambulation in Health and Disability: A literature Review. Arch. Phys. Med. Rehabil., 59, 124–133.
5. Ganguli, S, Datta, S R, Chatterjee, B B et al. (1973). Performance evaluation of amputee-prosthesis system in below-knee amputees. Ergonomics, 16, 797–810.