References
- ÅSTRAND , I. , ÅSTRAND , P.-O. , HALLBACK , I. , and KILBOM , A. , 1973 , Reduction in maximal oxygen uptake with age. Journal of Applied Physiology. , 35 , 649 – 654 .
- BARD , G. , and RALSTON , H. J. , 1959 , Measurement of energy expenditure during ambulation, with special reference to evaluation of assistive devices. Archives of Physical Medicine andRehabilitation. , 40 , 415 – 420 .
- BAR-OR , O. , and ZWIREN , L. , 1975 , Maximal oxygen consumption test during arm exercise- reliability and validity. Journal of Applied Physiology. , 38 , 424 – 426 .
- BASSEY , E. J. , MACDONALD , I. A. , and PATRICK , J. M. , 1982 , Factors affecting the heart rate during self-paced walking. European Journal of Applied Physiology. , 48 , 105 – 115 .
- BLESSEY , R. L. , HISLOP , H. J. , WATERS , R. L. , and ANTONELLI , D. , 1976 , Metabolic energy cost of unrestrained walking. Physical Therapy. , 56 , 1019 – 1024 .
- CUNNINGHAM , D. A. , RECHNITZER , P. A. , PEARCE , M. E. , and DONNER , A. P. , 1982 , Determinants of self-selected walking pace across ages 19 to 66. Journal of Gerontology. , 37 , 560 – 564 .
- ENGEL , P. , and HILDEBRANDT , G. , 1974 , Wheelchair design—technological and hysiological aspects. Proceedings of Royal Society of Medicine. , 67 , 409 – 413 .
- GLASER , R. M. , BARR , S. A. , LAUBACH , L. L. , SAWKA , M. N. , and SURYAPRASAD , A. G. , 1980 a , Relative stresses of wheelchair activity Human Factors. 22 , 177 – 181 .
- GLASER , R. M. , COLLINS , S. R. , and WILDE , S. W. , 1980 b Power output requirements for manual wheelchair locomotion . In Proceedings of the I.E.E.E. National Aerospace and Electronics Conference , New York , pp. 502 – 509 .
- GLASER , R. M. , LAUBACH , L. L. , SAWKA , M. N. , and SURYAPRASAD , A. G. , 1979 a , Exercise stress, fitness evaluation and training of wheelchair users . In Proceedings of the International Conference on Lifestyle and Health,1978 Optimal Health and Fitness for People with Physical Disabilities ( Edited by A. S. LEON and G.J.AMUNDSON ) ( Minneapolis University of Minnesota Press ), pp. 167 – 194 .
- GLASER , R. M. , SAWKA , M. N. , LAUBACH , L. L. , and SURYAPRASAD , A. G. , 1979b , Metabolic and cardiopulmonary responses to wheelchair and bicycle ergometry.|at Journal of Applied Physiology Respiratory, Environmental and Exercise Physiology. 46|v, 1066 – 1070 .
- GLASER , R. M. M. SAWKA , M. N. , WILDE , S. W. , WOODROW , B. K. , and SURYAPRASAD , A. G. , 1981 , Energy cost and cardiopulmonary responses for wheelchair locomotion and walking on tile and on carpet. Paraplegia. , 19 , 197 – 203 .
- GLASER , R. M. , SAWKA , M. N. , YOUNG , R. E. , and SURYAPRASAD , A. G. , 1980 c, Applied physiology for wheelchair design. Journal of Applied Physiology. Respiratory,Environmental and Exercise Physiology. , 48 , 41 – 44 .
- GRIMBY , G. , and SODERHOLM , B. , 1962 , Energy expenditure of men in different age groups during level walking and bicycle ergometry. Scandinavian Journal of Clinical and Laboratory Investigation. , 14 , 321 – 328 .
- HILDEBRANDT , G. , VOIGT , E.-D. , BAHN , D. , BERENDES , B. , and KRÖGER , J. , 1970 , Energy costs of propelling wheelchair at various speeds cardiac response and effect on steering accuracy. Archives of Physical Medicine and Rehabilitation. , 51 , 131 – 136 .
- LARSSON , L. , GRIMBY , G. , and KARLSSON , J. , 1979 , Muscle strength and speed of movement in relation to age and muscle morphology. Journal of Applied Physiology Respiratory, Environmental and Exercise Physiology. 46 , 451 – 456 .
- MURRAY , M. P. , KORY , R. C. , and CLARKSON , B. H. , 1969 , Walking patterns in healthy old men. |jtJournal of Gerontology.|j t24 , 169 – 178 .
- RALSTON , H. J. , 1958 , Energy-speed relation and optimal speed during level walking. Internationale Zeitschrift fuer Angewandte Physiologie einschliesslich Arbeitsphysiologie. , 17 , 277 – 283 .
- SAWKA , M. N. , GLASER , R. M. , LAUBACH , L. L. , AL-SAMKARI , O. , and SURYAPRASAD , A. G. , 1981 , Wheelchair exercise performance of the young, middle-aged, and elderly. Journal of Applied Physiology Respiratory, Environmental and Exercise Physiology. , 50 , 824 – 828 .
- SHOCK , N. W. , 1962 , The physiology of aging. Scientific American , 206 , 100 – 108 .
- STAMFORD , B. A. , 1972 , Physiological effects of training upon institutionalized geriatric men. Journal of Gerontology. , 4 , 451 – 455 .
- STENBERG , J. , ASTRAND , P.-O. , EKBLOM , B. , ROYCE , J. , and SALTIN , B. , 1967 , Hemodynamic response to work with different muscle groups, sitting and supine. Journal of Applied Physiology Respiratory, Environmental and Exercise Physiology. , 22 , 61 – 70 .
- VOIGT , E.-D. , and BAHN , D. , 1969 , Metabolism and pulse rate in physically handicapped when propelling a wheelchair up an incline. Scandinavian Journal of Rehabilitation Medicine. , 1 , 101 – 106 .
- WOODROW , B. K. , 1979 , Cardiopulmonary and metabolic responses for walking and wheelchair locomotion on different floor surfaces . M.Sc. thesis , Wright State University , Dayton , Ohio .
- This work was presented in part at the 1981 fall meeting of the American Physiological Society and published in abstract form (1981, Physiologist, 24, 41).