title: The "iliacus test": new information for the evaluation of hip extension dysfunction.
abstract: This study confirms the clinical value of investigating the "iliacus complex" during evaluations of the low back. A new "iliacus test" isolates this iliacus complex component of limited hip extension. Designed for a single joint, the test isolates motion across the hip joint. Study results include the following: (1) in a comparison with the clinical standard, the Thomas test, data show that the two tests are significantly different in an asymptomatic population between the ages of 18 and 35 years; (2) with the exception of the standard Thomas test, the data show no statistical differences in range of motion when comparing the left side with the right side; (3) examiner-added, end-range pressure for assessment of range of motion when compared with the standard gravity-dependent end range of motion used in the Thomas test yields valuable new information; and (4) data provide a basis for population norms for each test--Thomas and iliacus--in gravity-dependent and examiner-produced tissue-feel end ranges.
authors.affiliation: Somatic Dysfunction Research Institute, Ohio University College of Osteopathic Medicine, Athens 45701-2979, USA. eland@exchange.oucom.ohiou.edu
authors.forename: David C
authors.initials: DC
authors.lastname: Eland
authors.forename: Tiffani N
authors.initials: TN
authors.lastname: Singleton
authors.forename: Robert R
authors.initials: RR
authors.lastname: Conaster
authors.forename: John N
authors.initials: JN
authors.lastname: Howell
authors.forename: Alfred M
authors.initials: AM
authors.lastname: Pheley
authors.forename: Melynda M
authors.initials: MM
authors.lastname: Karlene
authors.forename: Joynita M
authors.initials: JM
authors.lastname: Robinson
mesh_terms: D000328:Adult; D005260:Female; D006621:Hip Joint / Q000502:physiology*; D006801:Humans; D017116:Low Back Pain / Q000175:diagnosis; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology; D010808:Physical Examination; D016059:Range of Motion, Articular