• 1
    Graham GP, Fairclough JA. The hip. In: KlippelJH, DieppePA, editors. Rheumatology. 2nd ed. London: Mosby International; 1998. p. 4.11.114.
  • 2
    Evans RC. The hip joint. In: EvansRC. Illustrated orthopedic physical assessment. 2nd ed. St. Louis: Mosby; 2001. p. 677746.
  • 3
    Magee DJ. Hip. In: MageeDJ. Orthopedic physical assessment. 4th ed. Philadelphia: Saunders; 2002. p. 60759.
  • 4
    Holm I, Bolstad B, Lutken T, Ervik A, Rokkum M, Steen H. Reliability of goniometric measurements and visual estimates of hip ROM in patients with osteoarthrosis. Physiother Res Int 2000; 5: 2418.
  • 5
    Gajdosik RL, Sandler MM, Marr HL. Influence of knee positions and gender on the Ober test for length of the iliotibial band. Clin Biomech (Bristol, Avon) 2003; 18: 779.
  • 6
    Reese NB, Bandy WD. Use of an inclinometer to measure flexibility of the iliotibial band using the Ober test and the modified Ober test: differences in magnitude and reliability of measurements. J Orthop Sports Phys Ther 2003; 33: 32630.
  • 7
    Rao KN, Joseph B. Value of measurement of hip movements in childhood hip disorders. J Pediatr Orthop 2001; 21: 495501.
  • 8
    Ross MD, Nordeen MH, Barido M. Test-retest reliability of Patrick's hip range of motion test in healthy college-aged men. J Strength Cond Res 2003; 17: 15661.
  • 9
    Perry J, Weiss WB, Burnfield JM, Gronley JK. The supine hip extensor manual muscle test: a reliability and validity study. Arch Phys Med Rehabil 2004; 85: 134550.
  • 10
    Croft PR, Nahit ES, Macfarlane GJ, Silman AJ. Interobserver reliability in measuring flexion, internal rotation, and external rotation of the hip using a plurimeter. Ann Rheum Dis 1996; 55: 3203.
  • 11
    Goligher EC, Ratzlaff CR, Gillies JH. External rotation of hip during stance phase of gait: grading system validation and reliability study [abstract]. J Rheumatol 2004; 31: 1427.
  • 12
    Theiler R, Stucki G, Schutz R, Hofer H, Seifert B, Tyndall A, et al. Parametric and non-parametric measures in the assessment of knee and hip osteoarthritis: interobserver reliability and correlation with radiology. Osteoarthritis Cartilage 1996; 4: 3542.
  • 13
    Bellamy N, Carette S, Ford PM, Kean WF, Le Riche NG, Lussier A, et al. Osteoarthritis antirheumatic drug trials. I. Effects of standardization procedures on observer dependent outcome measures. J Rheumatol 1992; 19: 43643.
  • 14
    Cibere J, Bellamy N, Thorne A, Esdaile JM, McGorm KJ, Chalmers A, et al. Reliability of the knee examination in osteoarthritis: effect of standardization. Arthritis Rheum 2004; 50: 45868.
  • 15
    Kellgren JH, Lawrence JS. Radiological assessment of osteo-arthrosis. Ann Rheum Dis 1957; 16: 494502.
  • 16
    Bellamy N, Buchanan WW, Goldsmith CH, Campbell J, Stitt LW. Validation study of WOMAC: a health status instrument for measuring clinically important participant relevant outcomes to antirheumatic drug therapy in participants with osteoarthritis of the hip or knee. J Rheumatol 1988; 15: 183340.
  • 17
    Box GE, Hunter WG, Hunter JS. Designs with more than one blocking variable. In: Statistics for experimenters: an introduction to design, data analysis, and model building. New York: John Wiley & Sons; 1978. p. 24580.
  • 18
    S-Plus 2000 Professional 1988-2000. Seattle (WA): mathSoft, Insightful Corporation; 2000.
  • 19
    Byrt T, Bishop J, Carlin JB. Bias, prevalence and kappa. J Clin Epidemiol 1993; 46: 4239.
  • 20
    Landis JR, Koch GG. The measurement of observer agreement for categorical data. Biometrics 1977; 33: 15974.
  • 21
    Shrout PE, Fleiss JL. Intraclass correlations: uses in assessing rater reliability. Psychol Bull 1979; 86: 4207.
  • 22
    Hardcastle P, Nade S. The significance of the Trendelenburg test. J Bone Joint Surg Br 1985; 67: 7416.