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8주간의 소도구 이용 근력운동이 고령 남성 농업인의 근력, 동적 평형성 및 보행 능력에 미치는 영향
박우영(Wooyeong Park),김찬양(Chanyang Kim) 한국노년학회 2022 한국노년학 Vol.42 No.3
이 연구는 8주간의 소도구를 이용한 근력운동 적용을 통해 고령 남성 농업인의 근력, 동적 평형성 및 보행 능력의 변화를분석하고자 하였다. 대상자는 약 71세의 남성 농업인 31명으로, 운동군 15명과 통제군 16명을 무작위 배정한 후 운동군은 주 3회, 일 60분, 8주간 탄성 밴드와 스위스볼을 이용해 운동을 실시하였다. 측정 변인은 근력과 근지구력(악력, 30초간 의자 앉았다 일어서기), 동적 평형성(3m 텐덤 걷기, 3m 후방 걷기, 3m 왕복 걷기) 및 보행 능력(4m 보행, 10m 보행, 400m 보행)로 하였다. 연구 결과 근력(p<.001)과근지구력(p<.001)에서 유의한 차이를 보으며, 동적 평형성 중 텐덤 걷기에서는 시기(p<.01) 및 상호작용(p<.05)에서 유의하였고, 3m 왕복 걷기에서는 시기에서 유의한 차이를 보였다(p<.01). 보행 능력 중 4m 걷기 속도에는 유의한 차이가 없었으나, 10m 걷기(p<.001)와400m 걷기(p<.001)에서 유의한 차이가 나타났다. 이상의 결과를 종합해 보면 8주간의 탄성 밴드와 스위스 볼을 이용한 소도구 운동은고령 남성 농업인들의 근력과 동적 평형성 및 걷기 능력에서 유의한 효과를 보여 고령 남성 농업인의 건강 증진을 위한 효과적인운동 방법으로 생각된다. The purpose of this study was to analyze the changes in muscle strength, dynamic balance, and gait ability of elderly male farmer by applying an hand-props exercise for 8 weeks. The subjects were randomly assigned to two groups, exercise group(n=15), control group(n=16). Exercise was performed for 60min/day with three times for 8 weeks. Measurement variables were muscle strength(grip strength), muscle endurance(30sec chair stand), dynamic balance(3m tandem walking, 3m backward walking, and 3m up and go), and gait ability(4m walking speed, 10m walking, and, 400m walking). As a results of the study, there were significant difference in muscle strength(p<.001) and muscle endurance(p<.001). In the case of dynamic balance, it was significantly difference in time(p<.01) and interaction(p<.05) on tandem walking. And there was a significantly difference in time(p<.01) on 3m up and go. There was no significant difference in 4m walking speed, however, in 10m walking(p<.001) and 400m walking(p<.001) were a significantly difference between time and group. In conclusion, hand-props exercise with elastic band and swiss ball for 8 weeks has significantly effect on the muscle strength, dynamic balance, and walking ability of elderly male farmer, therefore, it is considered an effective exercise method for improving the health of elderly male farmer.
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Mobility Design Proposal for Children’s Safety on Road
Soo Jin Kim(김수진),Wooyeong Park(박우영),Jeongyun Heo(허정윤),Sungyeon Park(박성연) 대한인간공학회 2021 대한인간공학회 학술대회논문집 Vol.2021 No.11
Objective: We believe the scope of smart mobility can be extended beyond the means of transportation or a delivery tool. This study proposes a mobility design for the safety of child pedestrians. Background: Children are at high risk of pedestrian crash Injuries. According to the Traffic Accident Analysis System (TAAS), 483 school zone traffic accident cases were reported in 2020, and 87% involved pedestrians. Children have low situational awareness of their surroundings due to the low eye level and they have the tendency to be easily distracted. As a result, an oncoming vehicle might not be perceived as a threat to child pedestrians. Even with much effort by the government, the number of school zone accidents has not decreased in the past few years. Therefore, we would like to propose a smart mobility system resembling the Green Mothers’ Society of Korea (similar to Junior Police Officers), providing safety instructions to children and to keep an eye on the vehicles in school zones. Method: Our design process was based on the Double Diamond model. [Discover]: The risk factors derived from direct observation of two school zones in the areas of Greater Seoul are (a) children’s lack of situational awareness; (b) the negligence of drivers; (c) the blind spots created by illegally parked vehicles; (d) the traffic violations of delivery motorcycle riders. [Define]: When members of the Green Mothers’ Society are on duty, the roadways in school zones become much safer since the traffic gets controlled and actions taken immediately against the physical threats. [Develop]: Key elements in solving the problems are (a) device functioning as a barricade to restrict the vehicles; (b) pedestrian escort functions in highrisk places such as crossings; c) the ability to promptly report illegal parking; and d) the HMI function. [Deliver]: We propose ‘SIST’, which is a conceptual smart mobility system designed to improve the safety of children on school zone roadways. Results: SIST is made up of a fleet of ‘Kidobots,’ a guiding robot, and the ‘Mothership,’ where the Kidobots dock. Two or more SIST units drive autonomously towards each of their mission locations once the system is activated. When they arrive at the allocated locations, each of the Mothership disembarks four Kidobots. Then, the Motherships start to serve their duty as the barricade to control the traffic. Meanwhile, the Kidobots goes to the mission areas and serves as a guide for children and their safety. The Kidobots have several functions. They gently get in the way of oncoming cars to inform the driver the presence of the children at crosswalks or intersections where visibility is not secured. They also notify children to pay attention to the roads. Speakers and projectors will be used for communications. In addition, the built-in cameras will allow the Kidobots to take pictures of illegally parked cars and report it to the city. Conclusion: We proposed a smart mobility system that can enhance the safety of the child pedestrians in the school zone. It can be effectively used to protect children on their commuting routes. Application: Through this study, we were able to present a new area of public design that includes mobility. When the mobility we proposed is activated, it will be expanded to services related to autonomous vehicles and predictive using collected data. It is expected that the service can be expanded as well.
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