Journal of Korean Physical Therapy Science (대한물리치료과학회지)

Korean Physical Therapy Science (대한물리치료과학회)
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Intratester Reliability of 3 Dimensional Motion Analysis System on Normal Subjects by a Tester

3차원 운동분석 시스템을 이용한 보행분석에 있어서 검사간의 재현도

  • Lee, Moon-Sook (Motion Analysis Section, National Rehabilitation Hospital) ;
  • Wui, Hyang-Mi (Motion Analysis Section, National Rehabilitation Hospital)
  • 이문숙 (국립 재활병원 운동분석실) ;
  • 위향민 (국립 재활병원 운동분석실)
  • Published : 1995.03.31
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Abstract

The purpose of this investigation was to determine the intratester reliability of measurements obtained with 3 Dimensional Motion Analysis System(3DMAS) by tester on normal subject. Twenty subjects between the ages of 9 and 29(x=22) were evaluated with 3DMAS using a test-retest reliability procedure after a familiarization session. Computerized 3DMAS was done with 4 50 - Hz CCD cameras connected to the ELITE system(B. T. S., Italy) and kinetic data were collected from the AMTI force platform(AMTI., U. S. A). Data were analyzed by the Eliclinic software to obtain gait parameters, joint angles and joint internal moment and power. Test-retest revealed intraclass correlation coefficients from .80 to .99. A series of paired t-tests revealed no significant differences between test and retest values. Finally, it was concluded that tester with 3DMAS could obtain reliable measurements with 3DMAS for determining kinetic, kinematic and gait parameters in normal subjects.

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