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김은혁,장민철,서정표,장성호,송준찬,조혜민 대한재활의학회 2013 Annals of Rehabilitation Medicine Vol.37 No.2
Objective To describe a hand-stretching device that was developed for the management of hand spasticity in chronic hemiparetic stroke patients, and the effects of this device on hand spasticity. Methods Fifteen chronic hemiparetic stroke patients with finger flexor spasticity were recruited and randomly assigned to an intervention group (8 patients) or a control group (7 patients). The stretching device consists of a resting hand splint, a finger and thumb stretcher, and a frame. In use, the stretched state was maintained for 10 minutes per exercise session, and the exercise was performed twice daily for 4 weeks. Spasticity of finger flexor muscles in the two groups was assessed 3 times, 4 weeks apart, using the Modified Ashworth Scale (MAS). Patients in the intervention group were assessed twice (pre-1 and pre-2) before and once (post-1) after starting the stretching program. Results Mean MAS (mMAS) scores at initial evaluations were not significantly different at pre-1 in the intervention group and at 1st assessment in the control group (p>0.05). In addition, no significant differences were observed between mMAS scores at pre-1 and pre-2 in the intervention group (p>0.05). However, mMAS scores at post-1 were significantly lower than that at pre-2 in the intervention group (p<0.05). Within the control group, no significant changes in mMAS scores were observed between 1st, 2nd, and 3rd assessments (p>0.05). In addition, mMAS scores at post-1 in the intervention group were significantly decreased compared with those at the 3rd assessment in the control group (p<0.05).Conclusion The devised stretching device was found to relieve hand spasticity effectively in chronic hemiparetic stroke patients.
목영진,김대일,조은혁 경희대학교 산학협력기술연구원 2005 산학협력기술연구논문집 Vol.11 No.4
Mechanical properties of Municipal Solid Wastes(MSW) and their influencing parameters were studied by using a series of triaxial compression tests and resonant column tests. The shear strength of MSW can be modeled by a bilinear failure criterion. As the unit weight increasing, cohesion and internal friction were increased linearly on semi -log scale. As the proportion of waste to soil increases, maximum shear moduli tend to decrease whereas minimum damping ratios increase. Shear moduli and damping of degradable waste are higher than those of non-degradable MSW.