• 1
    BernardBP, editor. Musculoskeletal disorders and workplace factors: a critical review of epidemiologic evidence for work-related musculoskeletal disorders of the neck, upper extremity, and low back. National Institute of Occupational Safety and Health (NIOSH) publication number 97-141. Cincinnati (OH): US Department of Health and Human Services; 1997.
  • 2
    Panel on Musculoskeletal Disorders in the Workplace, Commission on Behavioral and Social Sciences and Education, and National Research Council and Institute of Medicine. Musculoskeletal disorders and the workplace: low back and upper extremities. Washington (DC): National Academies; 2001.
  • 3
    Andersen JH, Haahr JP, Frost P. Risk factors for more severe regional musculoskeletal symptoms: a two-year prospective study of a general working population. Arthritis Rheum 2007; 56: 135564.
  • 4
    D'Souza JC, Franzblau A, Werner RA. Review of epidemiologic studies on occupational factors and lower extremity musculoskeletal and vascular disorders and symptoms. J Occup Rehabil 2005; 15: 12965.
  • 5
    Nicholas JJ. Rheumatic diseases. In: StolovWC, ClowersMR, editors. Handbook of severe disability. Washington (DC): US Department of Education; 1981. p. 189204.
  • 6
    Steultjens EM, Dekker J, Bouter LM, van Schaardenburg D, van Kuyk MA, van den Ende CH. Occupational therapy for rheumatoid arthritis. Cochrane Database Syst Rev 2004; 1: CD003114.
  • 7
    Ward MM, Weisman MH, Davis JC Jr, Reveille JD. Risk factors for functional limitations in patients with longstanding ankylosing spondylitis. Arthritis Rheum 2005; 53: 7107.
  • 8
    Goie The HS, Steven MM, van der Linden SM, Cats A. Evaluation of diagnostic criteria for ankylosing spondylitis: a comparison of the Rome, New York and modified New York criteria in patients with a positive clinical history screening test for ankylosing spondylitis. Br J Rheumatol 1985; 24: 2429.
  • 9
    Occupational Information Network. O*NET resource center. 2007. URL:
  • 10
    Calin A, Garrett S, Whitelock H, Kennedy LG, O'Hea J, Mallorie P, et al. A new approach to defining functional ability in ankylosing spondylitis: the development of the Bath Ankylosing Spondylitis Functional Index. J Rheumatol 1994; 21: 22815.
  • 11
    Mackay K, Mack C, Brophy S, Calin A. The Bath Ankylosing Spondylitis Radiology Index (BASRI): a new, validated approach to disease assessment. Arthritis Rheum 1998; 41: 226370.
  • 12
    Spoorenberg A, van der Heijde D, de Klerk E, Dougados M, de Vlam K, Mielants H, et al. A comparative study of the usefulness of the Bath Ankylosing Spondylitis Functional Index and the Dougados Functional Index in the assessment of ankylosing spondylitis. J Rheumatol 1999; 26: 9615.
  • 13
    Falkenbach A, Franke A, van Tubergen A, van der Linden S. Assessment of functional ability in younger and older patients with ankylosing spondylitis: performance of the Bath Ankylosing Spondylitis Functional Index. Am J Phys Med Rehabil 2002; 81: 41620.
  • 14
    Doran MF, Brophy S, Mackay K, Taylor G, Calin A. Predictors of longterm outcome in ankylosing spondylitis. J Rheumatol 2003; 30: 31620.
  • 15
    Brophy S, Mackay K, Al-Saidi A, Taylor G, Calin A. The natural history of ankylosing spondylitis as defined by radiological progression. J Rheumatol 2002; 29: 123643.
  • 16
    Kennedy LG, Jenkinson TR, Mallorie PA, Whitelock HC, Garrett SL, Calin A. Ankylosing spondylitis: the correlation between a new metrology score and radiology. Br J Rheumatol 1995; 34: 76770.
  • 17
    Daltroy LH, Larson MG, Roberts NW, Liang MH. A modification of the Health Assessment Questionnaire for the spondyloarthropathies. J Rheumatol 1990; 17: 94650.
  • 18
    Pulkstenis E, Robinson TJ. Goodness-of-fit tests for ordinal logistic regression models. Stat Med 2004; 23: 9991014.
  • 19
    Dagfinrud H, Kvien TK, Hagen KB. The Cochrane review of physiotherapy interventions for ankylosing spondylitis. J Rheumatol 2005; 32: 1899906.
  • 20
    Zochling J, van der Heijde D, Dougados M, Braun J. Current evidence for the management of ankylosing spondylitis: a systematic literature review for the ASAS/EULAR management recommendations in ankylosing spondylitis. Ann Rheum Dis 2006; 65: 42332.
  • 21
    Zochling J, van der Heijde D, Burgos-Vargas R, Collantes E, Davis JC, Dijkmans B, et al. ASAS/EULAR recommendations for the management of ankylosing spondylitis. Ann Rheum Dis 2006; 65: 44252.
  • 22
    Uhrin Z, Kuzis S, Ward MM. Exercise and changes in health status in patients with ankylosing spondylitis. Arch Intern Med 2000; 160: 296975.
  • 23
    Wilder DG, Pope MH. Epidemiological and aetiological aspects of low back pain in vibration environments: an update. Clin Biomech (Bristol, Avon) 1996; 11: 6173.
  • 24
    Guo LX, Teo EC, Lee KK, Zhang QH. Vibration characteristics of the human spine under axial cyclic loads: effect of frequency and damping. Spine 2005; 30: 6317.
  • 25
    Wickstrom BO, Kjellberg A, Landstrom U. Health effects of long-term occupational exposure to whole-body vibration: a review. Int J Ind Ergonomics 1994; 14: 27392.
  • 26
    Ward K, Alsop C, Caulton J, Rubin C, Adams J, Mughal Z. Low magnitude mechanical loading is osteogenic in children with disabling conditions. J Bone Miner Res 2004; 19: 3609.
  • 27
    Gilsanz V, Wren TA, Sanchez M, Dorey F, Judex S, Rubin C. Low-level, high-frequency mechanical signals enhance musculoskeletal development of young women with low BMD. J Bone Miner Res 2006; 21: 146474.
  • 28
    Rubin C, Recker R, Cullen D, Ryaby J, McCabe J, McLeod K. Prevention of postmenopausal bone loss by a low-magnitude, high-frequency mechanical stimuli: a clinical trial assessing compliance, efficacy, and safety. J Bone Miner Res 2004; 19: 34351.
  • 29
    Ward MM. Social and economic consequences. In: WeismanMH, ReveilleJD, van der HeijdeD, editors. Ankylosing spondylitis and the spondylarthropathies. Philadelphia: Mosby; 2006. p. 21424.
  • 30
    Guillemin F, Briancon S, Pourel J, Gaucher A. Long-term disability and prolonged sick leaves as outcome measurements in ankylosing spondylitis: possible predictive factors. Arthritis Rheum 1990; 33: 10016.
  • 31
    Roussou E, Kennedy LG, Garrett S, Calin A. Socioeconomic status in ankylosing spondylitis: relationship between occupation and disease activity. J Rheumatol 1997; 24: 90811.
  • 32
    Ward MM. Health-related quality of life in ankylosing spondylitis: a survey of 175 patients. Arthritis Care Res 1999; 12: 24755.
  • 33
    Dagfinrud H, Mengshoel AM, Hagen KB, Loge JH, Kvien TK. Health status of patients with ankylosing spondylitis: a comparison with the general population. Ann Rheum Dis 2004; 63: 160510.
  • 34
    Tam LS, Chan KY, Li EK. The influence of illness and variables associated with functional limitations in Chinese patients with ankylosing spondylitis. J Rheumatol 2007; 34: 10329.
  • 35
    David GC. Ergonomic methods for assessing exposure to risk factors for work-related musculoskeletal disorders. Occup Med (Lond) 2005; 55: 1909.
  • 36
    Winkel J, Mathiassen SE. Assessment of physical work load in epidemiologic studies: concepts, issues and operational considerations. Ergonomics 1994; 37: 97988.
  • 37
    Gignac MA, Sutton D, Badley EM. Arthritis symptoms, the work environment, and the future: measuring perceived job strain among employed persons with arthritis. Arthritis Rheum 2007; 57: 73847.
  • 38
    MacDonald LA, Karasek RA, Punnett L, Scharf T. Covariation between workplace physical and psychosocial stressors: evidence and implications for occupational health research and prevention. Ergonomics 2001; 44: 696718.