[Purpose] For preventing the patellofemoral pain syndrome, this study aims to suggest a proper squat method, which presents selective muscle activity of Vastus Medialis Oblique and muscle activity ratios of Vastus Medialis Oblique/Vastus Lateralis by applying squat that is a representative weight bearing exercise method in various ways depending on the surface conditions and knee bending angles. [Subjects and Methods] An isometric squat that was accompanied by hip adduction, depending on the surface condition and the knee joint flexion angle, was performed by 24 healthy students. The muscle activity and the ratio of muscle activity were measured. [Results] In a comparison of muscle activity depending on the knee joint flexion angle on a weight-bearing surface, the vastus medialis oblique showed a significant difference at 15° and 60°. Meanwhile, in a comparison of the muscle activity ratio between the vastus medialis oblique and the vastus lateralis depending on the knee joint flexion angle on a weight-bearing surface, significant differences were observed at 15° and 60°. [Conclusion] An efficient squat exercise posture for preventing the patellofemoral pain syndrome is to increase the knee joint bending angle on a stable surface. But it would be efficient for patients with difficulties in bending the knee joint to keep a knee joint bending angle of 15 degrees or less on an unstable surface. It is considered that in future, diverse studies on selective Vastus Medialis Oblique strengthening exercise methods would be needed after applying them to patients with the patellofemoral pain syndrome.

This study assessed the association between gender difference with metabolic syndrome (MetS), metabolic syndrome score (MSS) and serum vitamin D levels in Korean adults. Analyses were restricted to 5147 adults (2162 men; 2985 women) aged 20 and older, using the 2012 Korean National Health and Nutrition Examination Survey (KNHANES) data. In the non-adjusted model, serum 25-hydroxyvitamin D [25(OH)D] levels were inversely associated with MetS (p = .001) and MSS (p = .009) in men, but positively associated with MetS (p = .002) and MSS (p < .001) in women. However, when adjusted for related variables (including age), serum 25(OH)D levels were inversely associated with MetS (p < .001) and MSS (p < .001) in men, but were not associated with MetS (p = .200) and MSS (p = .541) in women. In conclusion, increases in MetS and its components were inversely associated with the serum vitamin D concentration in men.

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The purpose of this study was to examine the demand of parents and teachers for a children's library and analyze the need in consideration of their age and children's library-using frequency. The subjects in this study were 1,500 parents and teachers in the region of Gwangju, on whom a survey was implemented to find out the necessity of a children's library, what should be considered in terms of design and program development and what forms of materials should be provided. As a result of checking their needs for the functions of a library, the parents and teachers investigated attached importance to culture, welfare and hands-on culture/art programs as what a library should focus on. Second, as for design, they gave top priority to comfortableness(sanitary facilities, ventilation, humidity and temperature) and safety(sofas, cushions and carpets for children). Third, as to program preference, both of the parents and teachers considered activity, performance and educational programs necessary among multiple kinds of ongoing programs. Specifically, performance programs ranked first among the parents and third among the teachers. Activity programs ranked first among the teachers and third among the parents. Fourth, concerning the importance of materials possessed by a library, they placed the most emphasis on the kind of materials that could foster creativity and instill the right personality.

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This research aims to find an optimal space program and analysis of optimal land of the national model of the scientific and technical information center. And the objective of this study is to contribute to strengthen the need of the building of information center and provide operation programs and vision toward information center which will be established later. We suggested a basic plan of scale and space program for proper space uses and optimal facilities and state-ofthe-art equipment of building. Also, we selected alternative land by document study, and suggested optimal land by field works and studies.

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