Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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A New Training System for Improving Postural Balance Using a Tilting Bed

  • Yu, Chang-Ho (Department of Biomedical Engineering, College of Engineering, Chonbuk National University) ;
  • Kwon, Tae-Kyu (Division of Bionics and Bioinformatics, College of Engineering, Chonbuk National University) ;
  • Ryu, Mun-Ho (Division of Bionics and Bioinformatics, College of Engineering, Chonbuk National University) ;
  • Kim, Nam-Gyun (Division of Bionics and Bioinformatics, College of Engineering, Chonbuk National University)
  • Published : 2007.02.28
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Abstract

In this paper, we propose an early rehabilitation training system for the improvement of postural balance with multi-modality on a tilting bed. The integration of the visual, somatosensory and vestibular functions is significant to for maintaining the postural control of the human body. However, conventional rehabilitation systems do not provide multi-modality to trainees. We analyzed the characterization of postural control at different tilt angles of an early rehabilitation training system, which consists of a tilting bed, a visual feedback, a computer interface, a computer, and a force plate. The software that we developed for the system consists of the training programs and the analysis programs. To evaluate the characterization of postural control, we conducted the first evaluation before the beginning of the training. In the following four weeks, 12 healthy young and 5 healthy elderly subjects were trained to improve postural control using the training programs with the tilting bed. After four weeks of training, we conducted the second evaluation. The analysis programs assess (center of pressure) COP moving time, COP maintaining time, and mean absolute deviation of the trace before and after training at different tilt angles on the bed. After 4 weeks, the COP moving time was reduced, the COP maintaining time was lengthened, and the mean absolute deviation of the trace was lowered through the repeated use of vertical, horizontal, dynamic circle movement training programs. These results show that this system improves postural balance and could be applied to clinical use as an effective training system.

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