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An Approach to One-Year Time Series Anal ysis of Physical Growth in Young Children
Fujii, Katsunori(후지이 카츠노리),Kasuya, Kohsuke(카스야 코스케),Kim, Jun-Dong(김준동) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.6
유아기 신체발육의 대하여, 월별로 해석되는 발달은 계절변동인지 주기적 변동인지 찬반의견이 갈리지만, 결국 주기적변동의 요소가 강하다는 의견이 있다. 따라서 본 연구는 유아기 어린나이의 유아를 대상으로 신장을 월별로 측정하여 Wavelet 보정법으로 해석하였다. 발육속도곡선을 나타나고 LPV(Local Peak Velocity) 출현점을 해석하였다. 이러한 신장 월별발육 패턴의 주기성은 어린 남유아 54명, 여유아 58명의 1년간 신장 데이터에서 얻었으며, Wavelet 보정법을 사용하고 월별 발육현량치 곡선을 미분하여 속도곡선 LPV를 얻었다. 검출된 1년간 LPV 출현 패턴은 남녀유아 모두 3군데, 4군데인 경우가 많았다. LPV 출현시기는 남녀유아 모두 5-6월경, 8-9월경, 12월경에 나타났다. 최대 LPV 출현시기는 5-6월경과 8-9월경에 다수 나타났다. 따라서 신장의 주기적 변동으로서 여름에 발육이 촉진되지만, 한편으로는 겨울이라도 발육이 촉진되는 경우도 있어, 역시 유전적인 신장 월별발육 패턴에는 주기성이 추정된다. 유아 중에서 약간 나이가 높은 유아의 경우도 비슷한 경향이 나타나고 있고, 결국, 계절변동 보다는 유전적인 주기적 발육 패턴이 보인다고 할 수 있다.
령해군장병의 가령(Aging)변화에 따른 체력평가차트 구축
위승완,후지이 카츠노리,홍예주,구광수 국군간호사관학교 군건강정책연구소 2013 군진간호연구 Vol.31 No.1
Purpose : There are no reported analyses of changes with age in the physical fitness of the members of the Korean navy over several decades after reaching adulthood. Analysis of physical fitness data for Korean sailors is important from the perspective of national defense in Korea. In this study we applied a least squares approximation polynomial to the age distance values for push-up, sit-up, and 3,000m run in members of the Korean navy aged 19 to 50 years to evaluate the changes in their physical fitness with age. Methods : Measurement data for 2201 male sailors aged 18-60 years and people associated with the military were obtained. From among this data, data for 2,137 men were finally used after restricting the ages to 19 to 50 years in consideration of the stability of the number of subjects of each age. Results : It was found that secondary approximation polynomials were valid for push-ups and sit-ups, and that a primary approximation polynomial was valid for the 3,000m run. An evaluation chart was then constructed with the trends in changes with age obtained with least squares approximation polynomials. Conclusion : Using this chart, it is concluded that information can be obtained on the kinds of efforts that can be made to maintain or promote physical ability, which is the most basic quality for the Korean navy, and measures for those efforts.
뇌졸중 재활치료에 있어서 병원군집간 의료서비스 제공실태와 치료성과 - 일본 뇌졸중 환자 데이터베이스를 이용하여 -
이노우에 유스케,정승원,콘도 카츠노리,서영준 보건의료산업학회 2011 보건의료산업학회지 Vol.5 No.3
This study was to assess the differences in rehabilitation outcomes between the different facilities in Japan, and to determine if there was any variation in patients' functional recovery at hospital discharge across the different facilities. This study focused on acute patients in the rehabilitation ward using the data of 1,830 patients from 8 hospitals after adjusting for triage at admission obtained from the Rehabilitation Patients Databank in Japan (issued in February, 2011) and compared the therapeutic results of each hospital. We estimate the expected value of levels of activities of daily living(ADL) at discharge for rehabilitation patients using regression analysis and Cluster analysis. There were differences among hospitals in their therapeutic results. The differences in the participation of physicians registered as rehabilitation specialists, amount of exercise, self-exercise wihtout therapist, and exercise in wards, were statistically significant differences between hospitals.
해군사관학교 여생도의 학년 진행에 따른 신체적 특징의 가령변화 구도
후지이카츠노리(Katsunori Fujii),이토모토키(Motoki Ito),구광수(Kwang Soo Koo),위승완(Seung Wan Wie),홍예주(Ye Ju Hong),김도형(Do Hyeong Kim) 한국발육발달학회 2011 한국발육발달학회지 Vol.19 No.4
The objective of this study was to investigate the change of the physical characteristics according to the grade progress, measuring the physique, % body fat, physical fitness and kinetic ability in the 1 to 4 grades of the navel female cadets. In result of the study, the change which follows in the grade progress of the physique and % body fat did not appear significantly, but the change in the physical item was showed the improved tendency. Especially, the sargent jump, grip strength followed in the grade progress appeared significant. And the side step, sit and reach, push up, sit up, and VO<sub>2max</sub> was showed the rapid increased tendency comparing with the entrance time in the academy. In the order to verify about the physical strength according to the accumulation of the % body fat by the regression polynomial, the physical strength level according to the degree of the obesity did not the difference and this study did not appear that the standard body type was higher than the slim and obesity body type in the physical strength level.
구광수(Kwang Soo Koo),홍예주(Ye Ju Hong),후지이카츠노리(Katsunori Fujii),이토모토키(Motoki Ito) 한국발육발달학회 2012 한국발육발달학회지 Vol.20 No.3
The studies on changes over time in the physique have also been conducted from cross-sectional data in Korea, although the history is not as long. However, since cross-sectional data are used in these studies the earlier maturation of children cannot be verified even if it is shown that they are becoming larger. To verify an accelerated growth phenomenon, analysis of longitudinal data is essential. In this study we used past and present longitudinal growth data for height and weight of Korean girls. A wavelet interpolation model was applied to verify annual trends in physique, and the accelerated growth phenomenon in Korea was examined. The subjects were 433 girls in the final year of high school in 1995 and 304 girls in the final year of high school in 2007. The wavelet interpolation method was applied to longitudinal growth data for height and weight of these boys from the first year of elementary school until the final year of high school. The results showed that the 2007 girls were distinctly larger than the 1995 girls, and earlier growth was also confirmed. In addition, the number of mid-growth spurts was not changed between past and present, it might be difficult for appearance pattern of mid-growth spurt to judge because physical maturation rate in girls is earlier than in boys.