• 대한물리의학회지
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• 제15권4호
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• pp.131-143
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• 2020

PURPOSE: The purpose of this study was to determine if an exercise program with vertical vibration can improve balance, walking speed, muscle strength and falls efficacy in the healthy elderly. METHODS: A total of 28 elderly were randomly divided into two groups: vertical vibration exercise group (exercise with vertical vibration) (N = 14) and control group (exercise without vibration) (N = 14). The exercise program, comprising calf raise, deep-squat, semi-squat, front lunge, and leg abduction was conducted with or without vibration, respectively. Subjects in each group participated in the 30 minutes training program, 2 times per week for 6 weeks. In both groups, the balance evaluation system (BT4) was used to evaluate standing balance, and walking speed was measured using the 10MWT. The manual muscle test system was applied to evaluate the knee extensor and ankle planter flexor muscle strength of the subjects, whereas the Korean falls efficacy scale (K-FES) evaluated the falls efficacy. RESULTS: After intervention, the vertical vibration group showed significantly higher changes compared to the control group, in the parameters of standing balance (P < .05), 10MWT (P < .05), left knee extensor (P < .05), right knee extensor (P < .01), both ankle plantar flexors (P < .05), and K-FES (P < .05). CONCLUSION: The exercise program with vertical vibration has the potential to improve balance, walking speed, muscle power and falls efficacy in the elderly.

• PNF and Movement
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• 제10권1호
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• pp.61-70
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• 2012

Purpose : The purpose of this study was to investigate thigh muscle-bone CSA and leg strength during low-intensity exercise program with leg blood flow restriction by external compression to reduce muscle outflow. Methods : Eighteen health students gave informed written consent to participate in this investigation. An occlusion cuff was attached to the proximal end of the leg so that blood flow was reduced during the training. The training was conducted one times a day, three times a week, for 8 weeks using one sets of 30 minutes. The training program performed to squat with standing, lunge with standing and heel raise with one leg standing. Measurements of thigh muscle-bone CSA(cross-sectional area) and leg strength were evaluated pre and post-training. Statistical evaluation of these data was accomplished utilizing a paired t-test by SPSS 12.0 program for windows. Significance level was set at p <.05. Results : All data are reported as means and standard deviations(SD) for all variables. The result of the study is followed; After the training, muscle-bone CSA, gluteus maximus m, quadriceps m, hamstring m of both legs were significantly improved but not calf muscle(p<.05). There was no significant difference of change quantity between muscle-bone CSA and leg strength in Lt. and Rt. side. But the variation in leg muscle strength of Rt. leg(dominant) was much more increased than Lt. leg(non-dominant) after 8 weeks training. Conclusion : Low-intensity training with leg blood flow restriction offers a potentially useful method for improving leg muscle strength.

• 한국지역지리학회지
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• 제5권1호
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• pp.101-120
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• 1999

본 연구는 농업의 산업화 과정에서 국가의 농업정책이 지역적 전문화(specialization)에 어떠한 영향을 미쳤는가를 영국을 사례로 하여 분석한 논문이다. 1950년대 이후 영국은 영농규모의 집중화(concentration), 보장 가격의 설시, 조건불리지역 사업을 통해 농업의 산업화를 촉진하는 정책을 실시하였으며 이로 인해 농업의 지역적인 전문화가 발생하였다. 작물의 전문화는 밀과 보리 및 종유(oilseed)를 중심으로 나타났다. 밀의 경우 EU 가입이후 상대적으로 부족하면서 공동농업정정책(Common Agricultural Policy)에서 높은 보장가격을 지지받음에 따라 동부 잉글랜드 지방의 토양이 비옥한 지역을 중심으로 전문화가 이루어졌다. 보리의 경우 사료작물로 재배되면서 가축사육지원정책의 영향을 받아 가축사육의 전문화가 이루어진 지역에서 집중 재배되었다. 종유의 지역적 전문화는 식품가공업이 발달과 함께 품종 개발, 가공 및 저장기술의 발달로 남부지역에서 북부지역으로 확산되었다. 가축 사육은 작물 재배보다 전문화가 뚜렷하였다. 특히 1970년대부터 실시된 조건불리지역 사업은 영농조건이 불리한 영국 서부 구릉지 지역에 전문화를 유발시키면서 환경보전론자들의 비판을 받기도 하였다. 또한 1980년대 중반이후 우유생산량을 줄이기 위한 쿼터제도에서 농민들간에 쿼터량을 거래할 수 있게 함으로서, 동부지역의 농민이 서부지역에 이를 양도함으로서 전문화는 더욱 촉진되었다. 이와 같은 연구 결과는 농업정책이 현시적으로 혹은 암묵적으로 공간적인 측면을 지니게 되어 농업의 지역적 분화를 유발함을 의미한다.