• 1
    Van Oosterwijck J, Nijs J, Meeus M et al. Pain inhibition and post-exertional malaise in myalgic encephalomyelitis/chronic fatigue syndrome: an experimental study. J Intern Med 2010; 268: 265278.
  • 2
    Yunus MB. Central sensitivity syndromes: a new paradigm and group nosology for fibromyalgia and overlapping conditions, and the related issue of disease versus illness. Semin Arthritis Rheum 2008; 37: 33952.
  • 3
    Van Houdenhove B, Luyten P. Fibromyalgia and related syndromes characterized by stress intolerance and pain hypersensitivity: do we need a new nosology? Curr Rheumatol Rev 2007; 3: 3048.
  • 4
    McEwen BS, Gianaros PJ. Central role of the brain in stress and adaptation: links to socioeconomic status, health, and disease. Ann N Y Acad Sci 2010; 1186: 190222.
  • 5
    Van Houdenhove B, Van Den Eede F, Luyten P. Does hypothalamic-pituitary-adrenal axis hypofunction in chronic fatigue syndrome reflect a ‘crash’ in the stress system? Med Hypotheses 2009; 72: 7015.
  • 6
    Miller AH. Inflammation versus glucocorticoids as purveyors of pathology during stress: have we reached the tipping point? Biol Psychiatry 2008; 64: 2635.
  • 7
    Watkins LR, Maier SF. Immune regulation of central nervous system functions: from sickness responses to pathological pain. J Intern Med 2005; 257: 13955.
  • 8
    Boneva RS, Decker MJ, Maloney EM et al. Higher heart rate and reduced heart rate variability persist during sleep in chronic fatigue syndrome: a population-based study. Auton Neurosci 2007; 137: 94101.
  • 9
    Staud R. Heart rate variability as a biomarker of fibromyalgia syndrome. Fut Rheumatol 2008; 3: 47583.
  • 10
    Jensen KB, Kosek E, Petzke F et al. Evidence of dysfunctional pain inhibition in fibromyalgia reflected in rACC during provoked pain. Pain 2009; 144: 95100.
  • 11
    Zautra AJ, Fasman R, Davis MC et al. The effects of slow breathing on affective responses to pain stimuli: an experimental study. Pain 2010; 149: 128.
  • 12
    Fukuda K, Straus SE, Hickie I, Sharpe MC, Dobbins JG, Komaroff A. The chronic fatigue syndrome: a comprehensive approach to its definition and study. International Chronic Fatigue Syndrome Study Group. Ann Intern Med 1994; 121: 9539.
  • 13
    Carruthers BM, Jain KA, De Meirleir KL et al. Myalgic encephalomyelitis/chronic fatigue syndrome: clinical working case definition, diagnostic and treatment protocols. J Chron Fatigue Syndr 2003; 11: 7115.
  • 14
    Van Houdenhove B, Verheyen L, Pardaens K, Luyten P, Van Wambeke P. Rehabilitation of decreased motor performance patients with chronic fatigue syndrome: should we treat low effort capacity or reduced effort tolerance? Clin Rehabil 2007; 21: 112142.
  • 15
    Ortega E, García JJ, Bote ME et al. Exercise in fibromyalgia and related inflammatory disorders: known effects and unknown chances. Exerc Immunol Rev 2009; 15: 4265.
  • 16
    Nijs J, Paul L, Wallman K. Chronic fatigue syndrome: an approach combining self-management with graded exercise to avoid exacerbations. J Rehabil Med 2008; 40: 2417.
  • 17
    Hooper M. Myalgic encephalomyelitis: a review with emphasis on key findings in biomedical research. J Clin Pathol 2007; 60: 46671.