• 한국산학기술학회논문지
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• 제17권3호
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• pp.224-230
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• 2016

본 연구의 목적은 젊은 여성을 대상으로 구두 굽 높이에 따라 한다리 서기 자세를 수행하는 동안 배곧은근, 척추세움근, 넙다리곧은근, 뒤넙다리근의 근활성도를 비교하기 위해 연구를 실시하였다. 본 연구는 건강한 20대 여성 20명을 대상으로 0cm, 3cm, 7cm 의 각각 다른 높이의 굽이 있는 구두를 착용하고 안정한 지지면 위에서 정적 균형검사 중 하나인 오른쪽 다리로 한다리 서기를 하는 동안 표면 근전도 장비를 이용하여 오른쪽 배곧은근, 척추세움근, 넙다리곧은근, 뒤넙다리근의 근활성도를 측정하여 비교 분석하였으며 연구 결과 척추세움근과 넙다리곧은근의 근활성도는 굽높이가 증가함에 따라 유의한 증가가 있었고(p<0.05), 배곧은근, 뒤넙다리근의 근활성도는 유의한 차이가 없었다(p>0.05). 구두 굽 높이의 증가는 척추세움근 및 넙다리곧은근의 근활성도를 증가시키며 이로 인한 허리 앞굽음과 골반의 앞쪽 기울임 증가는 신체분절의 위치나 무게 중심의 변화를 일으켜 허리 골반 부위 및 엉덩관절, 무릎관절에 근골격계 통증과 같은 문제를 일으킬 수 있을 것이다.

• 한국노년학
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• 제37권1호
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• pp.237-250
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• 2017

본 연구의 목적은 넘어짐 예방 운동이 여성노인의 체력, 자세, 낙상효능감에 미치는 영향을 규명하는 것이다. 연구 대상은 65세 이상의 여성노인 30명을 대상으로 하였으며, 그 중 14명은 운동집단, 16명은 비교 집단으로 하였다. 넘어짐 예방운동 프로그램은 탄성밴드를 이용한 다방향 근력 근지구력, 파워 운동, 자세 정렬 운동과 한국무용 동작을 접목한 다방향 동적균형, 협응력 운동으로 구분하였고 총 12주간, 주 2회, 각 60분으로 진행하였다. 운동 프로그램 전후의 체력, 자세, 낙상 효능감을 측정하여 비교하였다. 연구 결과 운동 집단은 악력을 제외한 근지구력, 심폐지구력, 유연성, 평형성, 협응력에서 유의하게 증가하였고, 자세는 상체 기울기를 제외한 어깨 기울기, 견갑골 기울기, 골반 기울기, 종골각 기울기, 다리길이 차이가 유의하게 감소하였다. 낙상 효능감 점수는 운동 집단에서는 증가하고 비교 집단에서 감소하였으나, 모두 통계적으로 유의하지는 않았다. 그러므로 넘어짐 예방운동은 체력 향상과 자세교정에 효과적이라는 결론을 내릴 수 있다. 그러나 악력(근력)을 증가하는 것과 상체기울기를 교정하는 운동프로그램의 보완이 필요하다.

• The Journal of Korean Physical Therapy
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• 제24권6호
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• pp.419-422
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• 2012

Purpose: Malalignment of the lower limbs may increases the difficulty of maintaining equilibrium. The purpose of this study was to study the effects of genu varum and poor posture in the sagittal plane on postural stability. Methods: We had 27 subjects with varus and 27 normal subjects participate in this study. Subjects for whom the distance between the medial epicondyles in the knee joint was more than 3 cm were classified as varus group, and subjects for whom the distance was less than 3 cm were classified as normal group. The measurements of static and dynamic stability were used overall stability index (OSI), anterioposterior stability index (APSI), and mediolateral stability index (MLSI) using a Biodex balance system. Results: When measuring the static stability index, there were significant differences in the mediolateral stability index between the varus and control groups. When measuring the dynamic stability index, there were significant differences in the overall, anteriorposterior, and mediolateral stability index between the varus and control groups. These results demonstrated that genu varum affects mediolateral movement in static stability, and overall, anterioposterior and mediolateral movements in dynamic stability. Conclusion: As genu varum affects static and dynamic stability in young adults, it increases the risk of injuries or falls. Exercise and surgery are required for realigning the genu varum. Future studies about postural stability in young children and elderly people who have a risk of falls due to lower postural control ability, are needed, as well as in young adults.

• 한국운동역학회지
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• 제26권3호
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• pp.285-292
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• 2016

Objective: This study collected data on muscle fatigue and ground reaction force during walking to provide a basis for development of custom-fitted outdoor walking shoes. The study analyzed an upright body exercise program using spine stabilization technique to determine the effect on foot plantar pressure in archers, demonstrate the effectiveness of upright body exercise, and develop a new, effective, and efficient training program. Method: A 12-week upright body exercise program was evaluated for the effect on plantar pressure in archers. Ten prize-winning archers (3 men, 7 women) in B metropolitan city, each with ${\geq}10years$ of experience, were given an explanation of the content and purpose of the program, and provided informed consent. Upright body exercise was performed 3 times a week for 12 weeks. A resistive pressure sensor was used to measure foot plantar pressure distribution and analyze quantitative information on variation in postural stability and weight shifting in dynamic balance during shooting, as well as plantar pressure in static balance with the eyes open and closed. Results: There were no significant differences in foot plantar pressure before and after participation in the exercise program. There was no statistically significant difference in foot plantar pressure in static balance with the eyes open or closed, or in foot plantar pressure in dynamic balance during shooting. Conclusion: An upright body exercise program had positive effects on foot plantar pressure in static and dynamic balance in archers by reducing body sway and physical imbalance during shooting and with eyes closed. This program is expected to help archers improve their posture and psychological state, and thereby improve performance.

• 한국전문물리치료학회지
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• 제9권2호
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• pp.83-96
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• 2002

The purpose of this study was to determine the effect of lift to the shoe of the affected limb on gait patterns in subjects with hemiplegia. The subjects of this study were 18 post-stroke hemiplegics. For the study, insole of the paretic side was lifted 10mm higher, and duration of static weight bearing, dynamic weight bearing and stance phase were measured from one cycle of the gait, before and after the lift application. For the measurement of carry-over effect of lift, we got data of those three items prior to and 3 weeks after lift application and 3 days after removal of the lift. Static weight bearing was significantly increased both just after and continuous application of lift for 3 weeks than before. Dynamic weight bearing was significantly decreased in heel contact and footflat phases only when just after application of the lift, without any change after 3 weeks application. In heel-off phase, dynamic weight bearing did not show any significant difference between before and just after application of lift whereas significantly decreased after 3 weeks application. Duration of stance phase was not changed among anytime of application. According to this study, lift applied to the shoe of the peretic limb was effective in inducing static weight bearing in the paretic limb, but did not significantly effect dynamic weight bearing on gait patterns. This study suggests that symmetry, induced by shoe lift applied to the paretic limb, could help correct abnormal posture that would be caused in standing and prevent development of abnormal muscle tone in subjects with hemiplegia caused by unilateral stroke.

• 한국운동역학회지
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• 제24권2호
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• pp.103-109
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• 2014

The study aimed to examine the effect of a corrective exercise on Cobb's angle and static and dynamic foot pressure in patients with kyphosis. Patients with kyphosis participated in a 12 weeks of corrective exercise program. Participants were randomly assigned to a corrective exercise group (n=17) and a control group (n=17), and corrective exercise for 60 minutes are executed every 3 times a week. All data were analyzed by two-way repeated measured ANOVA. Statistical level was set up as a=.05. As a result, Cobb's angle had significantly effects according to time and groups. Anterior and posterior part of static foot pressure showed significant effects by time but not by groups. Whereas left and right part of static foot pressure showed no significant effects. And dynamic foot pressure showed significant effects by time but not by group also. In conclusion, it is approved that this exercise was helpful on abnormal posture arrangement and improvement of unbalanced muscle capability.

• 대한물리의학회지
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• 제14권1호
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• pp.139-150
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• 2019

PURPOSE: This study was conducted to determine the effects of treadmill gait training with obstacle-crossing on the static and dynamic balance ability of patients with post stroke hemiplegia. METHODS: Twenty-one patients with post stroke hemiplegia were divided into three groups as: treadmill gait training with obstacle-crossing (TOG, n=7), treadmill gait training without obstacle-crossing (TGG, n=7) and a control (CON, n=7). TOG and TGG performed exercise for 20 minutes, three times a week for 8 weeks. Static balance ability (stability typical, ST; weight distribution index, WDI; fourier harmony index, FHI; and fall index, FI) and dynamic balance ability (berg balance scale, BBS and timed up and go test, TUG) were measured before and after 8 -weeks in each exercise group. Statistical analyses were conducted using two-way ANOVA with repeated measures, a paired t-test, and multiple comparisons according to Tukey's HSD. RESULTS: FHI and BBS were significantly increased at TOG (p<.01) and TGG (p<.05) after 8-weeks compared to before treadmill gait training with obstacle-crossing. FHI and BBS were significantly increased at TOG compared with CON and TGG (p<.05). CONCLUSION: Treadmill gait training with obstacle-crossing was more effective than that without obstacle-crossing to improve posture control and independent daily life performance of hemiplegia patients.

• 한국산업보건학회지
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• 제20권3호
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• pp.139-146
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• 2010

Recent studies suggest that prolonged standing at work is associated with varicose veins (VV). The objective of this study was to analyze the differences of VV risk in terms of work types in casino dealers and hotel service workers. Symptoms of VV were evaluated using a self-reported questionnaire from 2,092 participants, and muscle fatigue in the lower legs were evaluated using surface electromyography. The shift rate of median frequency in Gastrocnemius was -30.0% among the casino dealers working in prolonged static standing posture, and - 14.3% among the casino dealers sitting during working time. After adjusting age, gender, smoking, and family history of VV, the risk ratio of VV was 3.67(95% CI 2.03-6.59) in group I (prolonged standing and occasional walking at work), 6.29(95% CI 3.48-11.35) in group II (prolonged standing, occasional walking and heavy lifting at work), and 8.07(95% CI 4.51-14.43) in groupIII(prolonged static standing at work). In conclusion, prolonged standing at work may be a work related risk factor of VV.

• The Journal of Korean Physical Therapy
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• 제27권5호
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• pp.292-298
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• 2015

Purpose: The purpose of this study was to examine the effects of dual tasks on balance and postural control during standing in patients with cerebellar ataxia (CA). It was hypothesized that CA patients would exhibit different sway characteristics of the center of mass (COM) depending on the complexity of the secondary cognitive tasks compared with normal control subjects. Methods: A total of 8 patients with CA and age-matched healthy control subjects participated in this study. They were instructed to perform two balance tasks (non-dual and dual movement) with 3 different complexity of dual tasks. Range, variability, and velocity of COMs were measured. Results: According to the results CA patients showed deficits in balance and postural control with increased dual-task complexity during the static balance task in saggital sway movements. However, there was no significant difference in static balance in frontal sway. With higher difficulty in the cognitive task, CA patients took longer to stabilize their body center, while normal control subjects showed no change between conditions. In addition, CA patients had a greater COM resultant velocity during recovery in the dual-task condition compared with the single-task condition. These findings indicate that CA patients had defendable compensatory strategies in performing dual tasks. Conclusion: In conclusion, CA patients appeared to manage the priority to balance and postural control. Particularly in a situation with a postural threat such as when potential consequences of the loss of stability increase, they appeared to prioritize the control of balance and posture over the performance of the secondary task.

• 산업융합연구
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• 제18권2호
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• pp.27-35
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• 2020

본 연구는 목뼈와 등뼈에 적용한 관절가동술이 전방머리자세를 가진 성인의 목통증, 목관절가동범위 및 균형에 미치는 영향을 알아보고자 실시되었다. 전방머리자세로 판명된 대학생 26명을 목뼈 관절가동술 그룹과 등뼈 관절가동술 그룹으로 13명 씩 무작위 배정하여 모든 대상자에게 각각 하루 10회, 1회당 30초 적용, 30초 휴식으로, 주 3회, 4주간 관절가동술을 적용한 후 변화를 비교하였다. 연구 결과, 통증과 관절가동범위에서 두 그룹 모두 유의한 효과가 있었고(p<.01), 그룹 간 비교에서는 유의한 차이가 없었다. 정적 균형의 그룹 내 변화에서 목뼈 관절가동술 그룹이 오른발 및 눈을 감았을 때 유의한 개선을 보였고(p<.05), 등뼈 관절가동술 그룹에서는 유의한 변화가 없었다(p<.05). 왼발 정적 균형은 두 그룹 모두 유의한 개선이 없었고(p<.05). 그룹 간 정적 균형의 비교에서도 유의한 차이가 없었다(p<.05). 동적 균형의 그룹 내 변화에서 목뼈 관절가동술 그룹이 앞쪽, 왼쪽, 오른쪽에서 유의한 개선을 보였고(p<.05), 등뼈 관절가동술 그룹이 앞쪽과 오른쪽에서 유의한 개선을 보였다(p<.05). 그룹 간 동적 균형에서는 왼쪽에서 유의한 차이가 나타났다(p<.05). 본 연구를 통하여 목뼈 및 등뼈 관절가동술은 전방머리자세 성인의 통증, 관절가동범위, 균형 능력에 대하여 유의한 효과가 있었다.