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진동수에 따른 전신진동운동이 하지근 파워 및 점프 수행력에 미치는 영향
윤광한(Gwang Han Yun),지창진(Chang Jin Ji),박종석(Jong Suk Park),임용택(Yong Taek Im),황문현(Moon Hyun Hwang),김상호(Sang Ho Kim) 한국사회체육학회 2014 한국사회체육학회지 Vol.0 No.56
The purpose of this study was to verify the differences on power generation of lower limb and the optimum frequency to maximize the power. The subject of this study was chosen as 10 able-bodied male students in college on N university, Chungcheongnam-do, whom there is no medical history about motor disturbance, paresthesia, nervous system, musculoskeletal system, and listened about the purposes, methods and risks of study, and written the participation agreement. Using random sampling method, 10 subjects kept an upright posture on the Turbo-Trainer during 5 minutes as the frequency of 8㎐, 26㎐, 40㎐ in order to fit each order, and then practiced 5 times multiple jump on the Accupower for measuring the lower limb power, finally measured maximum power, mean power, maximum jump height and mean jump height through the ground reaction force. Using SPSS 18.0, the data process of this study calculated as mean (M) and standard deviation (SD) of all measured value, used one-way repeated measure ANOVA in order to verify the significant difference between maximum power, mean power, maximum jump height, mean jump height at each frequency. The significant level of hypothesis verification is set-up as α=.05. The results of this study are follows. 1) The maximum power of whole body vibration showed significant differences at the 26㎐ only compared with before implementation(p <.01). 2) The mean power of whole body vibration showed significant differences at the 26㎐ only compared with before implementation(p<.05). 3) The maximum jump height of whole body vibration showed significant differences at the 26㎐ only compared with before implementation(p<.05). 4) The mean jump height of whole body vibration showed significant differences at the 26㎐ only compared with before implementation(p<.05). In summary, during whole body vibration according to frequency affect to lower limb power at 26㎐, the optimum frequency except mean jump height has verified at 26㎐ due to the significant difference has been appeared at the maximum power, mean power, maximum jump height except mean jump height. Therefore, this study is provided to sports scientist, supervisor, coach, trainer and player whom need the enhancement of lower limb power as scientific basic data and will be contributed to their performance enhancement.
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한국인의 신체 활동시간, 생활양식의 요인이 만성질환에 미치는 영향
지창진(Ji Chang-Jin),김상호(Kim Sang-Ho),윤광한(Yun Gwang-Han) 대한치료과학회 2019 대한치료과학회지 Vol.11 No.2
Objective: The lack of physical activity(PA) is one of the top ten causes of death. In the current era of South Koreas more to aging, the death rate, and medical expenses are rising along with the lack of physical activity. This study reveals the relationship of medical expenses with hours spent on physical activity and sitting time. Moreover, provides a guide to reasonable lifestyles. Method: To examine the factors related to the PA of adults, this study used data collected from 2011 to 2013 of Korean Medical Panel Data. Results: In Combined factor; First, observed the risk of Chronic Disease(CD) prevalence, compared with high PA & low sitting group, low PA & Low sitting group was significantly increased by 1.12 times. Complex CD(CCD), compared with high PA & low sitting group, low PA & Low sitting group was significantly increased by 1.19 times. Individual factors; Second, CD Compared with the sitting time of <29(hours/week, h/w), 29-41(h/w), 42-55(h/w), and >55(h/w) was significantly increased by 1.12 times, 1.10 times, and 1.10 tims, respectively. CCD, compared with the sitting time of <29(h/w), 29-41(h/w), 42-55(h/w), and >55(h/w) was significantly increased by 1.28 times, 1.18 times, and 1.16 times, respectively. Third, CD Moderate MET was significantly increased by 1.18 times compared with high MET. CCD Moderate MET was significantly increased by 1.13 times compared with high MET. Conclusions: It is expected to reduce chronic disease growth if supported by various programs that cut off sedentary life along often with increased PA in public health policies.
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