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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Determining meaningful changes in pelvic-on-femoral position during the Trendelenburg test.

CONTEXT: Hip abductor muscle weakness is related to many lower extremity injuries. A simple procedure, the Trendelenburg test, may be used to assess hip abductor performance in patient populations. OBJECTIVE: To describe the minimal detectable change (MDC) in pelvic-on-femoral (P-O-F) position of the stance limb during the Trendelenburg test. SETTING: Laboratory. PARTICIPANTS: 45 healthy women (28 +/- 8 years) and 45 healthy men (33 +/- 11 years). MAIN OUTCOME MEASURES: P-O-F position in degrees in single-leg stance. RESULTS: Baseline P-O-F position (hip adduction) was 83 degrees +/- 3 degrees with a range from 76 degrees to 94 degrees. The intratester reliability (ICC3,1) for measurement of P-O-F position using a universal goniometer was 0.58 with a standard error of measurement (SEM) of 2 degrees. The minimal detectable change (MDC) was calculated to be 4 degrees. CONCLUSIONS: If a person's P-O-F position changes less than 4 degrees between measurements, then the P-O-F position is within measurement error and it can be determined that there has been no change in the performance of the hip abductor muscles when examined by the Trendelenburg test.[1]

References

  1. Determining meaningful changes in pelvic-on-femoral position during the Trendelenburg test. Youdas, J.W., Mraz, S.T., Norstad, B.J., Schinke, J.J., Hollman, J.H. J. Sport. Rehabil (2007) [Pubmed]
 
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