REFERENCES

Atkinson, G. and Nevill, A.M. (1998) Statistical methods for assessing measurement error (reliability) in variables relevant to sports medicine. Sports Medicine 2, 217-238.

Blackwood, S., MacHale, S., Power, M., Goodwin, G. and Lawrie, S. (1998) Effects of exercise on cognitive and motor function in chronic fatigue syndrome and depression. Journal of Neurology, Neurosurgery, and Psychiatry 65, 541-546.

Borg, G. (1982) Psychophysical bases of perceived exertion. Medicine and Science in Sports and Exercise 14, 377-381.

Cannon, J., Angel, J., Ball, R., Abad, L., Fagioli, L. and Komaroff, A. (1999) Acute phase responses and cytokine secretion in chronic fatigue syndrome. Journal of Clinical Immunology 19, 414 -421.

Cabane, J., Renaud, M.C. and Tiev, K.P. (2000) The biorhythm of fatigue in chronic fatigue syndrome. Journal of Chronic Fatigue Syndrome 6 (3-4), 109-116.

Chalder, T., Berelowitz, G., Pawlikowska, T., Watts, L., Wessely, S., Wright, D. and Wallace, E. (1993) Development of a fatigue scale. Journal of Psychosomatic Research 17 (2), 147-153.

Chaudhuri, A. and Behan, P.O. (2000) Neurological dysfunction in chronic fatigue syndrome. Journal of Chronic Fatigue Syndrome 6 (3-4), 51-68.

Clapp, L.L., Richardson, M.R., Smith, J.F., Wang, M., Clapp, A.J. and Pieroni, R.E. (1999) Acute effects of thirty minutes of light-intensity, intermittent exercise on patients with chronic fatigue syndrome. Physical Therapy 79, 749-756.

Demitrack, M. (1994) Chronic fatigue syndrome: A disease of the hypothalamic-pituitary-adrenal axis? Annals of Medicine 26, 1-5.

Eaton, J.L. (1993) 'Rest and exercise in ME: the 'vicious circle' controversy'. Perspectives June, 15-16.

Evengard, R., Schacterle, R.S. and Komaroff, A.L. (1999) Chronic fatigue syndrome: new insights and old ignorance. Journal of Internal Medicine 246, 455-469.

Friedberg F. (1995) The stress/fatigue link in chronic fatigue syndrome. In: Clinical management of Chronic Fatigue Syndrome. Eds: Klimas, N., Patarca, R. New York, USA: The Haworth Medical Press. 147-152

Fuentes, K., Hunter, M.A., Strauss, E. and Hultsch, D.F. (2001) Intraindividual variability in cognitive performance in persons with chronic fatigue syndrome. The Clinical Neuropsychologist 15, 210-227.

Fukuda, K., Straus, S., Hickie, I., Sharpe, M., Dobbins, J. and Komaroff, A. (1994) The chronic fatigue syndrome: a comprehensive approach to its definition and study. The International Chronic Fatigue Syndrome Study Group. Annuals of Internal Medicine 121, 953-959.

Fulcher, K.Y., and White, P. (1997) Randomised controlle trial of graded exercise in patients with the chronic fatigue syndrome. British Medical Journal 314 (7095), 1647-1652.

Gantz, N.M. and Holmes, G.P. (1990) Treatment of chronic fatigue syndrome. Current Therapies 31 (8), 83-89.

Heinman, T.H. (1995) Chronic fatigue syndrome and vocational rehabilitation: unserved and unmet needs. In: Clinical management of Chronic Fatigue Syndrome. Eds: Klimas, N., Patarca, R. New York, USA: The Haworth Medical Press. 105-120.

Hill, N.F., Tiersky, L.A., Scavalla, V.R. and Natelson, B.H. (1999) The fluctuation and outcome of cfs over time. In: Chronic Fatigue Syndrome, advances in epidemiologic, clinical, and basic science research. Ed: Pactera-Montero, R. New York, USA: The Haworth Medical Press. 93-94.

Holmes, G., Kaplan, J., Gantz, N., Komaroff, A., Schonberger, L., Straus, S., Jones, J., Dubois, R., Cunningham-Rundles, C., Pahwa, S., Tosato, G., Zegans, I., Purtilo, D., Brown, N., Schooley, R. and Brus, I. (1988) Chronic Fatigue Syndrome: a working case definition. Annals of Internal Medicine 108, 387-389.

Kane, R.L., Gantz, N.M. and Di Pino, R.K. (1997) Neuropsychological and psychological functioning in chronic fatigue syndrome. Neuropsychiatry, Neuropsychology and Behavioural Neurology 10, 25-31.

Lewis, S., Cooper, C. and Bennett, D. (1994) Psychosocial factors and chronic fatigue syndrome. Psychological Medicine 24, 661-671.

MacDougall, J.D., Wenger, H.A. and Green, H.J. (1991) Physiological testing of the high-performance athlete. (2nd Edition. Human Kinetics Books, USA. 71.

MacLeod, C.M. (1991) Half a century of research on the stroop effect: an integrative review. Psychological Bulletin 109, 163-203.

Nevill, A.M., Lane, A.M., Kilgour, L.J., Bowes, N. and Whyte, G.P. (2001) Stability of psychometric questionnaires. Journal of Sports Sciences 19, 273-278.

O'Brien Cousins, S. (1996) An older adult exercise status inventory: reliability and validity. Journal of Sport Behaviour 19, 288-302.

Patarca-Montero, R. (2002) Treatment of chronic fatigue syndrome in the antiviral revolution era. The Haworth Medical Press, New York, USA.

Paul, L., Wood, L., Behan, M. and Maclaren, W. (1999) Demonstration of delayed recovery from fatiguing exercise in chronic fatigue syndrome. European Journal of Neurology 6, 63-69.

Powell, R., Bentall, R., Nye, F.J. and Edwards, R.H. (2001) Randomised controlled trial of patient education to encourage graded exercise in chronic fatigue syndrome. British Medical Journal 322 (7283), 387-390.

Safrit, M.J. and Wood, T.M. (1989) Measurement concepts in physical education and exercise science. Human Kinetics, Champiagn, USA.

Telford, R.D., Minikin, B.R., Hahn, A.G. and Hooper, L.A. (1989) A simple method for the assessment of general fitness: the tri-level profile. The Australian Journal of Science and Medicine in Sport 21 (3), 6-9.

Tomoda, A., Jhodoi, T. and Miike, T. (2001) Chronic fatigue syndrome and abnormal biological rhythms in school children. Journal of Chronic Fatigue Syndrome 8 (2), 29-37.

Vincent, W.J. (1995) Statistics in kinesiology. Human Kinetics, Illinois, Champaign.

Wahlund, J. (1948) Determination of physical working capacity. Acta Medica Scandinavica Suppl. 215, 1-78.

Wallman, K., Morton, A.R., Goodman, C. and Grove, R. (2004) Randomised controlled trial of graded exercise in chronic fatigue syndrome. Medical Journal of Australia 180, 444-448.

Wallman, K.E., Morton, A.R., Goodman, C., Grove, R. and Dawson, B. (2003) Reliability studies of the aerobic power index submaximal exercise test in a CFS population. Journal of Chronic Fatigue Fatigue Syndrome 111, 19-32.

Weardon, A., Morriss, R., Mullis, R., Strickland, P., Pearson, D., Appleby, L., Campbell, I. and Morris, J. (1998) Randomised, double-blind, placebo-controlled treatment trial of fluoxetine and graded exercise for chronic fatigue syndrome. The British Journal of Psychiatry 172, 485-490.

Wessely, S. and Edwards, R. (1993) Chronic fatigue. In: Neurological rehabilitation. Eds: Greenwood, R., Barnes, M., McMillan, T. and Ward, C. London, U.K.: Churchill Livingstone. 311-325.

Williams, G., Pirmohamed, J., Minors, D., Waterhouse, J., Buchan, I., Ardendt, J. and Edwards, R.H. (1996) Dissociation of body-temperature and melatonin secretion circadian rhythms in patients with chronic fatigue syndrome. Clinical Physiology 16 (4), 327-337.

Wilson, A., Hickie, I., Lloyd, A. and Wakefield, D. (1994) The treatment of chronic fatigue syndrome: science and speculation. The American Journal of Medicine 96, 544-550.

Winer, B.J. (1971) Statistical principles in experimental design. 2nd Edition McGraw-Hill, New York, USA.

Zigmond, A. and Snaith, R. (1983) The hospital anxiety and depression scale. Acta Physiologica Scandinavia 87, 361-370.