Search

BACKGROUND: Three-dimensional motion capture system plays an increasingly important role in determining the program of treatment and checking the outcome of therapy in clinic. OBJECTIVE: To investigate the reliability of temporal-spatial parameters and kinematic parameters taken by three-dimensional (3D) motion capture system (BTS Bioengineering, Milan, Italy). METHODS: Totally 28 young volunteers were recruited for gait analysis with 3D motion capture system by two evaluators, A and B. The parameters which consisted of speed, step length, step width, cadence and the angle of the pelvis, the hip, the knee and the ankle at sagittal, horizontal, and coronal planes were recorded. Data were compared within the group evaluated by the same evaluator, and data were compared among groups evaluated by two evaluators. The reliability was analyzed using ICC. RESULTS AND CONCLUSION: (1) Retest and interdetector reliability was poor in pelvic movement and ankle movement in the horizontal plane. The remaining parameters showed good correlation of the retest and interdetector reliability such as temporal-spatial and kinematic parameters, motion range at three planes, ankle sagittal, frontal planes within and between groups (ICC > 0.75). (2) Results indicate that the temporal-spatial and kinematic obtained from BTS 3D motion capture has clinically acceptable intertrial repeatability, except the movement of pelvis and ankle in the horizontal plane. It can be used in clinical research in mostly abnormal gait analysis. [ABSTRACT FROM AUTHOR]

Objective To approach the chemical composition of urinary calculus for its clinical prevention and treatment. Methods The 326 samples of the inpatients with stone were included in this study in Qiyang People's Hospital from June 2013 to May 2014. The infrared spectrum analysis system were adopted to analyze stone samples. Results The mixed urinary stones prevailed in the urinary calculus,accounting for 87.738 "286/326) ,in which, the most component was the calcium oxalate and calcium oxalate monohydrate, accounting for 96.328 (314/326), followed by carbonate apatite, accounting for 61.048 (199/326), magnesium ammonium phosphate in the third place, accounting for 27.918 (91/326), uric acid stones in the last,hardly occurred, accounting for 3.688(12/326). The component proportion[84.368 (275/326)] of the upper urinary calculi were more than that in the lower urinary stones[16.56%(54/326)]. The male patients with stone was more than that of the females[71.17%(232/326), 28.83%(94/326)]. The magnesium ammonium phosphate proportion for the female patients[71.43%(65/91)] was significantly higher than that of the male[40.66% (37/91)]. Conclusion The application of infrared spectrum in detection of urinary calculus is benefit to guiding the drink, diet, living customs and medicine treatment for the patiemts. [ABSTRACT FROM AUTHOR]