• 1
    Campbell RN. The new science: self-esteem psychology. Lanham (MD): University Press of America; 1984.
  • 2
    Marsh HW, Hattie J. Theoretical perspectives on the structure of self-concept. In: Bracken BA, editor. Handbook of self-concept. New York: Wiley; 1996. p. 389.
  • 3
    Messer B, Harter S. Manual for the Adult Self-Perception Profile. Denver (CO): University of Denver; 1986.
  • 4
    Marsh HW. Self-Description Questionnaire III: manual. Sydney: Publication Unit Faculty of Education University of Western Sydney; 1992.
  • 5
    Fox KR. The physical self and processes in self-esteem development. In: Fox KR, editor. The physical self: from motivation to well-being. Champaign (IL): Human Kinetics; 1997. p. 11139.
  • 6
    Fox KR, Corbin CB. The Physical Self-Perception Profile: development and preliminary validation. J Sport Exerc Psychol 1989; 11: 40830.
  • 7
    Marsh HW, Richards GE, Johnson S, Roche L, Tremayne P. Physical self-description questionnaire: psychometric properties and a multi-trait multi-method analysis of relations to existing instruments. J Sport Exerc Psychol 1994; 16: 270305.
  • 8
    Fox KR. The Physical Self-Perception Profile manual. DeKalb (IL): Office for Health Promotion, Northern Illinois University; 1990.
  • 9
    Sonstroem RJ, Potts SA. Life adjustment correlates of physical self-concepts. Med Sci Sports Exerc 1996; 28: 61925.
  • 10
    Sonstroem RJ. Physical self-concept: assessment and external validity. Exerc Sport Sci Rev 1998; 26: 13364.
  • 11
    Harter S. Processes underlying the construction, maintenance and enhancement of the self-concept in children. In: Suls J, Greenwald AG, editors. Psychological perspectives on the self, volume 3. Hillsdale (NJ): Erlbaum; 1986. p. 13781.
  • 12
    Harter S. Causes, correlates, and the functional role of global self-worth: a life-span perspective. In: Sternberg RJ, Kolligian K Jr, editors. Competence considered. New Haven (CT): Yale University; 1990. p. 6797.
  • 13
    Marsh HW, Sonstroem RJ. Importance ratings and specific components of physical self-concept: relevance to predicting global components of self-concept and exercise. J Sport Exerc Psychol 1995; 17: 84104.
  • 14
    Van de Vliet P, Knapen J, Onghena P, Fox KR, van Coppenolle H, David A. Assessment of physical self-perceptions in normal Flemish adults versus depressed psychiatric patients. Pers Individ Dif 2002; 32: 85563.
  • 15
    Van de Vliet P, Knapen J, Onghena P, Fox KR, David A, Morres I, et al. Relationships between self-perceptions and negative affect in adult Flemish psychiatric in-patients suffering from mood disorders. Psychol Sport Exerc 2002; 3: 30922.
  • 16
    MacSween A. An investigation of the efficacy of a hydrotherapy and land based aerobic exercise programme for female rheumatoid arthritis patients [dissertation]. Glasgow: Glasgow Caledonian University; 2003.
  • 17
    Steinbrocker O, Traeger CH, Batterman RC. Therapeutic criteria in rheumatoid arthritis. JAMA 1949; 140: 65962.
  • 18
    Scotte DC, van Riel PL, van der Heidje D, Benke AS. The EULAR handbook of standard methods, assessing disease activity in rheumatoid arthritis. Vienna: European League Against Rheumatism; 1993.
  • 19
    Singh SJ, Morgan MDL, Scott S, Walters D, Hardman AE. Development of a shuttle walk test of disability in patients with chronic airway obstruction. Thorax 1992; 47: 101924.
  • 20
    Singh SJ, Morgan MDL, Hardman AE, Rowe C, Bardsley PA. Comparison of oxygen uptake during a conventional treadmill test and the shuttle walking test in chronic airflow limitation. Eur Respir J 1994; 7: 201620.
  • 21
    MacSween A. The reliability and validity of the Åstrand nomogram and linear extrapolation for deriving VO2max from submaximal exercise data. J Sports Med Phys Fitness 2001; 41: 3127.
  • 22
    MacSween A, Brydson G, Creed G, Capell HA. A preliminary validation of the 10m incremental shuttle walk test as a measure of aerobic fitness in female rheumatoid arthritis patients. Physiotherapy 2001; 87: 3844.
  • 23
    Zigmond AS, Snaith RP. Hospital Anxiety and Depression Scale. Acta Psychiatr Scand 1983; 67: 36170.
  • 24
    Cronbach LJ. Coefficient alpha and the internal structure of tests. Psychometrika 1951; 16: 297334.
  • 25
    Fox KR. The effects of exercise on self-perceptions and self-esteem. In: Biddle SJH, Fox KR, Boutcher SH, editors. Physical activity and psychological well-being. London: Routledge; 2000.
  • 26
    Ekblom B, Lovgren O, Alderin M, Fridstom M, Satterstom G. Physical performance in patients with rheumatoid arthritis. Scand J Rheumatol 1974; 3: 1215.
  • 27
    Beals CA, Lampman RM, Banwell BF, Braunstein EM, Albers JW, Castor CW. Measurement of exercise tolerance in patients with rheumatoid arthritis and osteoarthritis. J Rheumatol 1985; 12: 45861.
  • 28
    Minor MA, Hewett JE, Webel RR, Dreisinger TE, Kay DR. Exercise tolerance and disease related measures in patients with rheumatoid arthritis and osteoarthritis. J Rheumatol 1988; 15: 90511.
  • 29
    Ekdahl C, Broman G. Muscle strength, endurance and aerobic capacity in rheumatoid arthritis: a comparative study with healthy subjects. Ann Rheum Dis 1992; 51: 3540.