论文信息 - Reliability and Validity of a 2-D Video Digitizing System during a Static and a Dynamic Task

Reliability and Validity of a 2-D Video Digitizing System during a Static and a Dynamic Task

Context: The SMART™ software system offers low-cost kinematic analysis through digitization of video from a single camera. The reliability and validity of this product have not been reported. Objective: To assess the reliability and validity of the SMART software during a simple static task and dynamic task. Design: Test–retest to compare assumed neutral and goniometrically measured joint angles in the sagittal plane of the lower extremity. Setting: Research laboratory. Participants: 7 in a static task, 16 young, physically active in a dynamic task. Results: Measurement error of the SMART system ranged from 0.29° ± 1.98° to 11.07° ± 1.77°. The interrater reliability (ICC2,1) values ranged from .60 to .92 for the static task and from .76 to .89 for the dynamic task. Conclusions: Based on the results of both studies, the SMART system offers a low-cost alternative for reporting single-plane kinematics during an individual frame of video during static stances and slow dynamic tasks with strong reliability and...

[1] G. Langewouters,et al. The pressure dependent dynamic elasticity of 35 thoracic and 16 abdominal human aortas in vitro described by a five component model. , 1985, Journal of biomechanics.

[2] B Stillman,et al. A video-based version of the pendulum test: technique and normal response. , 1995, Archives of physical medicine and rehabilitation.

[3] C. Armstrong,et al. The reliability of the star-excursion test in assessing dynamic balance. , 1998, The Journal of orthopaedic and sports physical therapy.

[4] T P Andriacchi,et al. A point cluster method for in vivo motion analysis: applied to a study of knee kinematics. , 1998, Journal of biomechanical engineering.

[5] J. Richards,et al. The measurement of human motion: A comparison of commercially available systems , 1999 .

[6] J. Hertel,et al. Intratester and Intertester Reliability during the Star Excursion Balance Tests , 2000 .

[7] J. Hertel,et al. Lower-Extremity Muscle Activation during the Star Excursion Balance Tests , 2001 .

[8] Jay Hertel,et al. Considerations for Normalizing Measures of the Star Excursion Balance Test , 2003 .

[9] G. Ferrigno,et al. Implementation and application of real-time motion analysis based on passive markers , 1998, Medical and Biological Engineering and Computing.