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김재구(Jae-Gu Kim) 한국엔터테인먼트산업학회 2015 한국엔터테인먼트산업학회논문지 Vol.9 No.1
본 연구는 척주건강을 위한 운동 역할을 고찰하여 올바른 운동방법을 제시하기 위한 연구이다. 생체역학적 관점에서 척추는 신체에서 가장 중요한 부위중 하나이며, 수많은 골격과 관절, 인대, 근육들이 척추의 움직임에 복합적으로 관여한다. 척주를 지지하고 있는 대근육 운동도 중요하지만 국소근육운동을 강화하여 내적 안정화에 초점을 두는 것이 바람직하다. 주동근와 길항근의 길이·장력관계를 유지해 주고, 요추와 골반 및 고관절의 복합체에서 정상적인 힘-짝 관계를 촉진하는 것이 필요하다. 척주를 지지하고 있는 국소근육(가로돌기사이근, 가시사이근, 돌림근, 뭇갈래근, 목반가시근, 등반가시근)은 대근육들이 움직이는 동안에 내재적으로 발생하는 나쁜 힘이 척추에 미치는 영향을 줄여서 보호하는 기전을 담당한다는 것이다. 따라서 국소근육 운동을 강화시키고, 척주 주변을 강화시켜 주는 슬링, 등속성 장비, 스위스 볼, 정적 스트레칭을 이용하여 저항운동을 실시하는 것이 척주건강을 위한 지름길이라고 할 수 있다. 또한 평소 허리를 곧게 펴서 올바른 자세를 유지한다면 튼튼한 척주를 유지할 수 있다고 생각된다. This study aims to explore the role of exercise for the health of vertebral column, and thereby, to suggest right ways of exercise. From the perspective of biomechanics, vertebral column is one of the most important part of a human body, and many bones, joints, ligaments, and muscles operate in the action of vertebral column. Despite global muscle excercise’s importance, it is more important to focus on the exercise of local muscles for an internal core stabilization. It is necessary to maintain the lengths of agonistic muscles and antagonistic muscles and tension between them, and to promote a normal strength relationship in a formation of Lumbo-Pelvic-Hip. Local muscles that support vertebral column undertake a mechanism that prevents vertebral column from negative internal influences produced while global muscles operate. Therefore, resistance exercise through sling, isokinetic equipments, swiss ball and static stretching is a best way to the health of vertebral column. Additionally, to maintain back straight for right position would be helpful for healthy vertebral column.
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김재구(Kim Jae Gu) 한국체육교육학회 1998 한국체육교육학회지 Vol.2 No.2
The development of this study was to compare the relationship between physical characteristics, physical fitness and %body. fat use the data from senior students at a girl`s junior high school in 1994 and in 1997. The subjects of this study were junior high school girl`s in kyung pock and were composed of 30 persons in 1994 and 30 in 1997. Their heights, weights, record on the physical fitness and %body fat were measurded. The result of this study as follows: 1. Analysis of t-test revealed that there was a significant difference in height between two groups (p$lt;.001), the mean value of height in 1997 being taller (3.31Cm) than that in 1994. 2. Analysis of t-test revealed that there was a significant difference in height between two groups (p$lt;.001), the mean value of two groups in 1997 being heavier (4.02Kg) than that in 11994. 3. The comparision of %body fat showed that the mean value in 1997 was larger than that in 1994.(22.56% vs 17.95%, p$lt;.001) also, the Comparision of Lean, normal, obese in body type showed that the mean value in 1997 was 30.0%, 63.3% and 6.7%. However, The comparision of Lean body type showed that the mean value in 1997 was decreased than that in 1994. (30.0% vs 16.7%) but the comparision of normal and obese body type showed that the mean value in 199 were increased than that in 1994. (each 63.3% vs 70.0%, 6.7% vs 13.3%) 4. The result of physical fitness test was that the mean value in 1997 was slower than that in 1994. (18.14sec vs 18.36sec) and the record of sit-up was decreased from in 1994 to in 1997. (36.73times/min vs 32.51times/min) also, the record of long distance run was decline from in 1999 to in 1997. (4` 12$quot; vs 4` 15$quot;)
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트레드밀과 자전거 에르고미터를 이용한 운동부하 검사 분석
김재구(Kim Jae-Gu),유동훈(Yoo Dong-Hun) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.3
This study was surveyed with university students for the purpose of analyzing graded exercise testing using the treadmill and the cycle ergometer. The results are as follows; 1. VO2max in the cycle ergometer exercise was 16.7% lower than that of the treadmill exercise. 2. It showed that VT in the cycle ergometer exercise had the lower percentage than that of the treadmill exercise, but, related to HR, there were no difference between the treadmill and the cycle ergometer exercises. 3. HRmax in the cycle ergometer exercise was lower than that of the treadmill exercise. There was no great difference of RPE between the treadmill and the cycle ergometer exercise. As showed above, it is considered to need to develop various tests and measuring equipments from now on, in case that the results measured using the treadmill is regarded to be higher than that of the cycle ergometer.
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인적자원관리와 기업성과와의 관계에 있어 지식공유의 조절효과 분석
김재구(Jae-Gu Kim),장용선(Yang-Sun Chang) 한국인사관리학회 2004 조직과 인사관리연구 Vol.28 No.2
최근의 기업환경은 지식정보화 사회로 빠르게 진행되고 있다. 이에 따라서 기업에서 지식근로자의 양성과 지식의 확산이 경쟁력 제고를 위한 주요 과제가 되고 있다. 조직에서 지식근로 자의 양성을 위해서는 인적자원관리 시스템이 중요한 역할을 하고, 종업원들 사이의 지식의 확산을 위해서는 지식공유가 중요한 조건이다. 즉 기업이 인적자원관리 시스템을 통하여 지식근로자를 양성하여 성과를 높이기 위해서는 지식공유가 중요한 상황요인이 될 것이다. 따라서 지식공유를 인적자원관리 시스템과 기업성과 사이의 조절변수로서 설정하였다. 지식집약 서비스 산업을 대상으로 한 회귀분석 결과 인적자원관리 시스템의 기업성과에의 영향에 대한 유의성은 입증되지 않았으나, 인적자원관리 시스템과 지식공유의 기업성과에의 상호작용 효과는 유의성 이 중명되었다. 따라서 지식집약 서비스 산업의 기업들은 지식근로자를 양성할 수 있는 인적자원관리 시스템과 함께 종업원들의 지식공유를 확산시킬 수 있는 방안을 동시에 고려하여야 할 것이다. Recently, company's environment is rapidly proceeding to knowledge information society. According to this trend, knowledge worker cultivation has become important task in the knowledge intensive service industrial organizations. Human resource management system in the organization can playa important role in cultivating knowledge workers. HRM practices dimensions appropriate for knowledge worker cultivation are selection, training, performance appraisal, incentive compensation, team work organization, information sharing. These practices can be categorized with three components of skill formation, motivation, employee participation opportunity. Firms have to induce organizational knowledge expansion as they cultivate knowledge worker through human resource management system and they enhance organizational member's knowledge sharing. Regression analysis results from only HRM system in knowledge intensive service industry firms were not significantly related to corporate performance. But our findings show that HRM systems aligned with knowledge sharing can positively influence corporate performance. Knowledge sharing moderates the relationship between HRM systems and corporate performance. Accordingly, knowledge intensive service industrial firms must consider concurrently HRM and knowledge sharing for the corporate performance.
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