REFERENCES

Astrand, I. (1960) A pilot study of work on a treadmill in women 20-65 years old. Acta Physiologica Scandinavia 49, 61-63.

Baker, R., Hausch, A. and McDowell, B. (2001) Reducing the variability of oxygen consumption measurements. Gait and Posture 13, 202-209.

Bernardi, M., Macaluso, A., Sproviero, E., Castellano, V., Coratella, D., Felici, F., Rodio, A., Piacentini, M.F., Marchetti, M. and Ditunno, J.F. Jr. (1999) Cost of walking and locomotor impairment. Journal Electromyography Kinesiology 9, 149-157.

Bland, J. M. and Altman, D.G. (1996) Measurement error.  British Medical Journal  312, 1654.

Bowen, T. R., Lennon, N., Castagno, P., Miller, F. and Richards, J. (1998) Variability of energy-consumption measures in children with cerebral palsy. Journal of Pediatric Orthopaedics 18, 738-742.

Boyd, R., Fatone, S., Rodda, J., Olesch, C., Starr, R., Cullis,  E.,  Gallagher,  D.,  Carlin, J. B.,  Nattrass, G.R. and Graham, K. (1999) High- or low- technology measurements of energy expenditure in clinical gait analysis? Developmental Medical Child Neurology 41, 676-682.

Corcoran, P.J., Jebsen, R.H., Brengelmann, G.L., Simons, B.C. (1970) Effects of plastic and metal leg braces on speed and energy cost of hemiparetic ambulation. Archives of Physical Medicine and Rehabilitation 51, 69-77.

da Cunha, I.T. and Henson H. (2003) Reliability of measures of gait performance and oxygen consumption with stroke survivors. Journal of Rehabilitation Research and Development 40, 19-25.

Dawes, H. (2001). Perception of fatigue and exertion during a cycling test in brain injured subjects. Doctoral thesis, chool of Health Sciences. University of East London, London. 259-260.

Dingwell, J.B., Cusumano, J.P.,  Cavanagh, P.R. and Sternad, D. (2001) Local dynamic stability versus kinematic variability of continuous overground and treadmill walking. Journal of Biomechanical Engineering 123, 27-32.

Hanada, E. and D. C. Kerrigan (2001). "Energy consumption during level walking with arm and knee immobilized." Archives of Physical Medicine and Rehabilitation 82(9): 1251-4.

Inman, V.Y., Ralston, H.J. and Todd, F.N. (1981) Human walking. Baltimore, Williams & Wilkins.

Kerrigan, D.C. (2001) Guest editorial: aesthetics of walking. Journal Rehabilitation Research and Development 38, ix-x.

Linnarsson, D., Mattsson, E., Eklof, L., Broman, L., Broman, M. and Brostrom, L.A. (1989) Determination of the oxygen cost of level walking. Clinical Physiology 9, 1-10.

Mattsson, E. and Brostrom, L.A. (1990) The increase in energy cost of walking with an immobilized knee or an unstable ankle. Scandinavian Journal Rehabilitation Medicine 22, 51-53.

Mattsson, E., Brostrom, L.A., Borg, J. And Karlsson, J. (1990) Walking efficiency before and after long-term muscle stretch in patients with spastic paraparesis. Scandinavian Journal Rehabilitation Medicine 22, 55-59.

Munro, B. (1993) Correlation.in Statistical methods for health care research. Philadelphia, Lippincott.

Ralston, H.J. (1965) Effects of immoblization of various body segments on the energy cost of human locomotion. Ergonomics  53-60.

Rieper, H., Karst, H., Noack, R. and Johnsen, D. (1993) Intraindividual and interindividual variations in energy - expenditure of 14 15-year-old schoolgirls as determined by indirect calorimetry. British Journal of Nutrition 69, 29-36.

Waters, R.L., Lunsford, B.R., Perry, J. and Byrd, R. (1988) Energy-speed relationship of walking: standard tables. Journal of Orthopaedic Research 6, 215-222.

Waters, R.L. and Mulroy S. (1999) The energy expenditure of normal and pathologic gait. Gait Posture 9, 207-231.

Wergel-Kolmert, U. and Wohlfart, B. (1999) Day-to-day variation in oxygen consumption and energy expenditure during submaximal treadmill walking in female adolescents. Clinical Physiology 19, 161-168.

Zamparo, P., Francescato, M.P., Perry, J. and Byrd, R. (1995) The energy cost of level walking in patients with hemiplegia. Scandinavian Journal of Medicine and Science in Sports 5, 348-352.

Zamparo, P. and Pagliaro, P. (1998) The energy cost of level walking before and after hydro-kinesi therapy in patients with spastic paresis. Scandinavian Journal of Medicine and Science in Sports 8, 222-228.

World Health Organisation, (1996) ‘Declaration of HelsinkiBritish Medical Journal 313 (7070), 1448-1449.