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폐경기 여성들의 요추 골밀도와 요부근력, 유산소 능력과의 상관관계
조종현,제세영,박원하,장경태 대한스포츠의학회 1997 대한스포츠의학회지 Vol.15 No.1
The purpose of this study was to examine the relationship of back strength and aerobic capacity to lumbar bone mineral density in fifty postmenopausal women(mean age : 56.2 years). Bone mineral density of the 2nd, 3rd, 4th lumbar vertebrae was measured by dual energy X-ray absorptiometer(DEXA), and back extensor strength was determinded with use of a MedX lumbar extension machine. Maximal oxygen consumption(VO_2peak) determined by graded exercise test with respiratory gas analysis. The following results were obtained. 1. Lumbar bone mineral density was significantly correlated with age, body weight, back strength, length of postmenopausal period. Height, percent body fat, grip strength, and VO_2peak had no correlation with lumbar bone mineral density. 2. With the multiple regression analysis the most significant predictors for lumbar bone mineral density were back strength had length of postmenopausal period. The results of the study stggest that to prevent or delay the bone mineral loss with aging, exercise which increase the aerobic capacity.
趙鍾顯,趙榮一 수원대학교 1994 基礎科學論文集 Vol.3 No.-
Superscalar processors which fetch, decode and execute multiple instructions in every machine cycle, can improve performance of processor according to the number of instructions excuted in parallel. They must support restarting and recovering mechanism to handle precise interrupt and mispredicted branch, and support register renaming and forwarding logic to resolve data dependencies. The most important thing in superscalar processor is interrupt handling mechanism. There are many mechanisms to handle interrupts. The organization and performance of processors are largely influenced by methods to handle the interrupt. This paper discusses several organizations of superscalar processors with priority given to methods a hardware scheme to reduce the hardware complexity of mechanism to handle the interrupt.