Reliability and validity of goniometric turnout measurements compared with MRI and retro-reflective markers.

摘要: There is no consensus on a valid and reliable method of measuring turnout. However, there building awareness that such measures need to exist. Total turnout the sum hip rotation, tibial torsion, contributions from foot. To our knowledge, has been research directly then sums each individual component verify total value. Furthermore, torsion not previously confirmed by an imaging study. The purpose this study was test validity reliability single passive (TPT) taken with goniometer comparing it components. Fourteen female dancers were recruited as participants. Measurements subjects' right left legs gathered for components Tibial measured using Magnetic Resonance Imaging (MRI). Retro-reflective marker assisted measurements used calculate static TPT. Hip external TPT, active (TAT) goniometer. Additional standing values collected rotational disks. rotation summed compared three whole-leg Two-Tailed T-Tests Pearson product-moment correlation coefficients. in found demonstrate substantial variation between subjects same subject. range leg 16 degrees 60 degrees, 52 degrees. markers biomechanical theory demonstrated when knee extended locked, "screwed home," will factor into TAT disks statistically significant total. Statistical significance achieved four eight measurement series TPT value rotation. advantages standard, valid, are many, risks few. Some include improved training techniques, mastery use at earlier age, better dancer teacher compliance suggested rates, understanding parallel position, etiology many dance-related injuries, possible development preventative measures.