• Journal of the Korea Convergence Society
• /
• v.12 no.12
• /
• pp.419-425
• /
• 2021

The objective of this study is to verify the effects of the application of flossband to the ankles of healthy adults on the functional range of ankle and walking ability. Total 20 people participated in the experiment, and through the randomization, one foot was set up as experimental side while the other foot was set up as control side. To analyze the two factors(before/after intervention/experimental side and control side), the two way-repeated ANOVA was conducted. The significance level was set up as 0.05. In the results of this study, compared to the control side, the experimental side showed significant increase in WBLT and heel strike(p=.05). In the test before/after intervention, the experimental side showed significant increase in WBLT, heel strike, and toe off(p=.05). The control side showed significant increase in toe off(p=.05). Thus, the application of floss band on ankle joint performed in this study would be helpful for improving the functional range and walking ability in the sports & rehabilitation field.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.21 no.2
• /
• pp.415-422
• /
• 2020

This study investigates the relationship between muscular strengths and gait characteristics of the elderly. Totally, 107 subjects, aged 65 to 85 years, participated in this study. Researchers measured muscle strengths (grip force, toe grip force, gluteus medius, and gluteus maximus forces) and walking characteristics (walking speed, cadence, step length, single leg support, and double legs support). Dynamometers and inertial measurement unit-based shoe systems were used for measuring muscular strength and gait characteristics, respectively. No significant difference was observed in strengths and walking characteristics between the young elders (YE, 65-74 years) and the old elders (OE, 75-85 years). For each age, muscular strength significantly correlated with some gait parameters. Forces of gluteus medius and gluteus maximus muscles showed better significant correlations between some gait parameters for all age groups, as compared to grip force and toe grip force. Regression coefficients between walking speed and grip force did not vary with age. We conclude that muscular strengths in OE better explained the gait characteristics than in YE subjects. Even though grip strength is an easily measured variable for senior fitness test, forces of gluteus medius and gluteus maximus muscles are more meaningful for understanding the walking characteristics of elderly people.

• 건강소식
• /
• v.35 no.7
• /
• pp.24-25
• /
• 2011

퇴행성 관절염은 관절을 보호하고 있는 연골이 마모되면서 뼈끼리 맞닿아 마찰을 이루면서 통증, 부종, 염증뿐 아니라 관절 변형 및 운동 장애까지 불러오는 질환이다. 50세 이상의 노년층에서 가장 흔히 찾아볼 수 있으며, 손가락, 발가락부터 허리, 고관절 등 전신의 어느 부위에서나 나타날 수 있다.

• The Safety technology
• /
• no.99
• /
• pp.30-31
• /
• 2006

아기가 세상에 태어났을 때 아기와 산모의 건강에 대한 염려 다음에는 흔히 손가락과 발가락이 모두 10개씩 맞는지 물어보고 헤아려 본다. 우리 몸에서 비슷한 기능을 하는 구조물이 10개씩 되는 것은 손과 발 이외에는 그렇게 흔치 않다. 그래서인지 손에는 눈에 잘 띄지 않는 경한 기형에서부터 팔이 짧든지 손가락이 없는 심각한 변형까지 다양하게 나타난다. 손의 기형에 대해 알아보자.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.32 no.7
• /
• pp.1056-1064
• /
• 2008

Toes socks are used widely for the health of feet. However, discomfort is one of the major complains from toes socks users. The purpose of this study is to determine the effect of functional fibers on the physiological response and wearing sensation of toes socks. For experiment, two different toes socks with cotton/warm fiber(WS) and cotton/chitosan fiber(CS) were knitted automatically by a computer controlled flat knitting machine. The control toes socks with cotton/nylon/polyurethan(TS) were prepared to compare the properties. Experiments were conducted in a climate room of $16\pm2^{\circ}C$, $50\pm5%$ R.H. The results of this study were as follows. The change of heart rate, pulse rate, and mean skin temperature showed no difference among three different socks. However, skin temperature of TS was evaluated higher than that of WS and CS. After exercise wearing WS both instep temperature and sole temperature of women tend to higher compared to men. Wet sensation and overall comfort sensation of toes socks were significantly influenced by different fiber contents. Subjects evaluated WS and CS more comfortable than TS.

• Journal of the Korean Society for Precision Engineering
• /
• v.27 no.10
• /
• pp.61-68
• /
• 2010

In order to let the humanoid robot walk on the uneven terrains, the robot's foot should have the similar structure and function as human's. The intelligent foot should be made up of toes and heel. When it walks on the uneven terrains, the foot's sole senses the force and adjusts foot's position before robot losing his balance. In this paper, the force sensors of robot's intelligent foot for having the similar structure and function like human are developed. The heel 3-axis force/moment sensor and toe force sensors for humanoid robot's intelligent foot is developed, and the characteristic tests of them are carried out. As a result of characteristic test, the interference error of the heel 3-axis force/moment sensor is less than 2.2%. It is thought that the developed force sensors could be used to measure the reaction forces which is applied the toes and the heel of a humanoid robot.

• Journal of the Korean Society for Precision Engineering
• /
• v.26 no.10
• /
• pp.47-55
• /
• 2009

In this study, a robot foot having toes for firm stepping on uneven surface is proposed. The toes are connected to the lower leg by parallel links so that the lower leg can rotate in the rolling and pitching directions during stance phase without ankle joint. The landing performance of the foot on uneven surface was evaluated by relative comparison with that of the most common foot making point contact with the walking surface, since the test conditions considering real uneven surface could be hardly defined for its objective evaluation. Anti-slip margin(ASM) was defined in this study to express the slip resistance of a robot foot when it lands on a projection with half circular-, triangular- or rectangular cross section, assuming that uneven surface consists of projections having these kind of cross sections in different sizes. Based on the ASM analysis, the slip conditions for the two feet were experimentally confirmed. The results showed that the slip resistance of the new foot is not only higher than that of the conventional point contact type foot but also less sensitive to the surface friction coefficient.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.25 no.10
• /
• pp.1745-1753
• /
• 2001

본 연구는 한랭 환경 하에서의 인체의 국소 가온 자극이 생리, 감각반응에 끼치는 영향을 검토했다. 건강한 성인여자 7명을 대상으로, 기온 $25^{\circ}C$, 습도50%의 환경 하에서 균일한 국소 가온을 부하 했을 때 피부온, 고막온, 손가락, 발가락 혈류량, 온냉감, 쾌적감의 반응에 미치는 영향을 검토한 결과는 다음과 같다. 1) 국소가온에 의해 가온 부위 피부온은 유의하게 상승하고 가온 부위에 따라 상승도에는 유의한 차가 보였다. 2) 국소가온에 의해 고막온은 머리의 가온 시에 높은 상승, 전완의 가온 시에 상승하고, 다른 가온 부위에서는 하강의 경향이 보였다. 3) 국소가온에 의해 혈류량의 변화는 3개의 군으로 분류된다. 가온과 함께 손가락 혈류량이 증가하는 군, 발가락 혈류량이 변화하는 군, 양쪽의 혈류량이 적게 변화하는 군으로 나누어진다. 이것을 각 피험자의 평균 피부온 수준 즉 체온조절 수준과 관계 있는 것으로 논할 수 있다 4)국소 가온에 의해 각 부 위 피부온으로의 파급효과는 머리, 상완의 가온 시에 크지만 대퇴, 하퇴 다리의 가온 시에는 대부분의 부위에서 영향이 보이지는 않았다. 5) 이와 같이 국소 가온에 의 한 생리, 감각반응은 가온 부위에 따라 다르고 머리, 상완의 가온 시에는 생리반응이 크고 하퇴, 다리의 가온시에는 국소의 감각변화가 컸다.

• Journal of the Korean Society of Physical Medicine
• /
• v.17 no.3
• /
• pp.69-77
• /
• 2022

PURPOSE: In this study, we sought to investigate the effect of conservative ankle strengthening exercise programs using a Bosu® ball or taping, on the hallux valgus angle and the pain of hallux valgus patients in their 20s. METHODS: The hallux valgus angle, balance, and pain after measuring the hallux valgus were measured to select suitable subjects. In the ankle strengthening exercise group (ASG) an ankle strengthening exercise program using a Bosu® ball was performed for two sessions weekly for four weeks and the taping group (TG) was given Kinesiotaping® for two sessions weekly, two days per session, for four weeks. Before and after the experiment, a footprint was used to examine the changes in the hallux valgus angle and the visual analog scale (VAS) was used to measure pain. RESULTS: An evaluation of the post-experiment changes in the hallux valgus angle and pain showed statistically significant improvement in both groups. There was no statistically significant improvement between groups. CONCLUSION: These results show that both ankle strengthening exercises and Kinesiotaping® have a positive effect on the hallux valgus angle and pain.

• The Journal of the Korea Contents Association
• /
• v.10 no.8
• /
• pp.257-265
• /
• 2010

The purpose of this study was to investigate the effect of different ramp inclination on the maximum plantar foot pressure and pathway of the center of pressure. Fifteen healthy adults who had no musculoskeletal disorders were participated with this study and descended the ramp with different inclination(level, $-5^{\circ}$, $-10^{\circ}$, $-15^{\circ}$). Plantar foot pressures were recorded by the Matscan system(Tekscan, Boston, USA) during level and descending ramp with barefoot. Plantar foot surface was defined as seven regions for pressure measurement; two toe regions, three forefoot regions, one midfoot region, one heel region. Repeated ANOVA was used to compare each region data of foot according to different ramp inclination. As descending ramp inclination became increased, the pressure of hallux region was significantly increased at $-15^{\circ}$ inclination and the pressure of 2-3 metatasal head region were significantly decreased at $-5^{\circ}$, $-10^{\circ}$, $-15^{\circ}$ inclination. The pathway of COP had a tendency to be shifted inside in forefoot and prolonged to great toe as the descending ramp inclination increased. The results indicated that plantar foot pressure could be changed at hallux and forefoot regions with $-5^{\circ}$ ramp inclination and these findings demonstrated that ramp inclination could affect the structure and function of foot.