• Title, Summary, Keyword: Postural control

Search Result 363, Processing Time 0.064 seconds

Development of an Advanced Early Rehabilitation Training System for Postural Control Using a Tilting Bed

  • Yu, Chang-Ho;Kim, Kyung;Kim, Yong-Yook;Kwon, Tae-Kyu;Hong, Chul-Un;Kim, Nam-Gyun
    • 제어로봇시스템학회:학술대회논문집
    • /
    • /
    • pp.2440-2443
    • /
    • 2005
  • We propose a new early rehabilitation training system for postural control using a tilting bed and a force plate. The conventional rehabilitation systems for postural control cannot be applied to the patients lying in bed because the rehabilitation training using those systems is possible only when the patient can stand up by himself or herself. Moreover, there has not existed any device that could provide the sense of balance or the sensation of walking to the patients in bed. By using a tilting bed, a visual display, and a force plate, we have developed a new rehabilitation training system for balance control of the patients in bed providing sense of balance and the sensation of walking to the patient. Through the experiments with real people, we verified the effectiveness of the new early rehabilitation training system. The results showed that this system is an effective system for the early rehabilitation training and that our system might be useful as clinical equipment.

  • PDF

The Effect of Ankle-Taping on Postural Balance and Lumbar Flexibility (족관절 테이핑이 자세 균형과 요부 유연성에 미치는 영향)

  • Kim, Jin-Ho;Kim, Myung-Hoon
    • Journal of the Korean Academy of Clinical Electrophysiology
    • /
    • v.8 no.1
    • /
    • pp.51-56
    • /
    • 2010
  • Purpose : This study identifies the effect of ankle-taping on limb asymmetry, postural sway and lumbar flexibility. Ankle-taping was applied for participants of this study and the results were compared to the control group. Methods : This study targets 46 adults, in which 25 composed the test group and 21 composed the control group. All participants were interviewed. For the test group, inflexible tapes of 5mm width were applied as designed by Danaka Nobudaka while the tapes for the control group were arranged in a symmetric direction to the direction of the test group. Postural balance was measured using Mediance (Human Tech Inc, Korea) and to identify lumbar flexibility, the trunk flexion is targeted. Results : 1. The postural inclination of both the groups decreased, but a statistically significant difference is not found (p>0.05). 2. Both the groups increased, but no statistically significant difference is found (p>0.05). 3. Both the groups increased, and a statistically significant change is found (p<0.05). Conclusion : As demonstrated in the results above, ankle taping is effective for lumbar flexibility as well as stability of ankle joints regardless of the direction of taping. It also suggests that ankle taping is helpful for health management of athletes and the public. However, as the results are limited in that they were obtained 10 minutes after taping, it is hoped that further studies will follow.

The Effects of the Postural Movement Normalization and Eye Movement Program on the Oculomotor Ability of Children With Cerebral Palsy (자세·움직임 정상화 및 안구운동 프로그램이 뇌성마비아동의 안구운동 기능에 미치는 효과)

  • Han, Dong-Wook;Kong, Nam-Ho
    • Physical Therapy Korea
    • /
    • v.14 no.3
    • /
    • pp.32-40
    • /
    • 2007
  • Although many children with cerebral palsy have problems with their eye movements available data on its intervention is minimal. The purpose of the study was to determine the effectiveness of the postural movement normalization and eye movement program on the oculomotor ability of children with cerebral palsy. Twenty-four children with cerebral palsy (12 male and 12 female), aged between 10 and 12, were invited to partake in this study. The subjects were randomly allocated to two groups: an experimental group received the postural movement normalization and eye movement program and a control group which received conventional therapy without the eye movement program. Each subject received intervention three times a week for twelve weeks. The final measurement was the ocular motor computerized test before and after treatment sessions through an independent assessor. Differences between the experimental group and control group were determined by assessing changes in oculomotor ability using analysis of covariance (ANCOVA). The changes of visual fixation (p<.01), saccadic eye movement (p<.01) and pursuit eye movement (p<.01) were significantly higher in the experimental group than in the control group. These results show that the postural movement normalization and eye movement program may be helpful to treat children with cerebral palsy who lose normal physical and eye movement.

  • PDF

The Effect of Postural Stability on Genu Varum in Young Adults

  • Chae, Yun-Won;Park, Ji-Won;Park, Seol
    • The Journal of Korean Physical Therapy
    • /
    • v.24 no.6
    • /
    • pp.419-422
    • /
    • 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.

Effects of Community-based Comprehensive Fall Prevention Program on Muscle Strength, Postural Balance and Fall Efficacy in Elderly People (지역사회 기반의 통합적 낙상예방 프로그램이 노인의 근력, 균형능력 및 낙상효능감에 미치는 영향)

  • Bae, Jeongyee;Cho, Seong-Il
    • Journal of Korean Academy of Nursing
    • /
    • v.44 no.6
    • /
    • pp.697-707
    • /
    • 2014
  • Purpose: The purposes of this study was to develop a comprehensive community-based fall prevention program and to test the effects of the program on the muscle strength, postural balance and fall efficacy for elderly people. Methods: The design of this study was a nonequivalent control group pretest-posttest design. There were 28 participants in the experimental group and 29 in the control group. The program consisted of balance exercises, elastic resistance exercises and prevention education. The program was provided five times a week for 8 weeks and each session lasted 90 minutes. Data were analyzed using ${\chi}^2$-test, independent t-test and paired t-test using the SPSS program. Results: Muscle strength of the lower extremities, postural balance and fall efficacy scores significantly improved in the experimental group compared to the control group. Conclusion: These results suggest that this program can improve lower extremity muscle strength, postural balance and fall efficacy in elders. Therefore, this program is recommended for use in fall prevention programs for elders living in the community.

Analysis of Postural Stability in Response to External Perturbation Intensity in Dancers and Non-dancers

  • Park, Da Won;Koh, Kyung;Lee, Sung Ro;Park, Yang Sun;Shim, Jae Kun
    • Korean Journal of Sport Biomechanics
    • /
    • v.26 no.4
    • /
    • pp.427-432
    • /
    • 2016
  • Objective: The goal of this study was to systematically investigate the postural stability of dancers by providing unexpected perturbations. Method: Six female dancers and college students participated in this study. Unpredictable wait-pull balance perturbations in the anterior direction were provided to the participants during standing. Three different perturbation intensities (low, moderate, and high intensity) were used by increasing perturbation forces. Spatial and temporal stability of postural control were measured by using margin of stability (MoS) and time to contact (TtC), respectively. Results: Both MoS and TtC at moderate intensity were significantly greater in the dancer group than in the control group, but no significant differences were found at low and high intensities between the groups. Conclusion: The present study showed spatial and temporal stability of dynamic postural control in dancers. We found that the dancers were more spatially and temporally stable than the ordinary participants in response to unexpected external perturbation when the perturbation intensity was moderate at two extreme intensity levels (low and high).

Development of a Somatosensory Stimulation System for the Improvement of Postural Stability (자세 안정성 개선을 위한 체성감각 자극 시스템 개발)

  • Yu, Mi;Eun, Hye-In;Piao, Yong-Jun;Kim, Dong-Wook;Kwon, Tae-Kyu;Kim, Nam-Gyun
    • Journal of Institute of Control, Robotics and Systems
    • /
    • v.13 no.9
    • /
    • pp.843-850
    • /
    • 2007
  • This paper proposes a somatosensory stimulation system for the improvement of postural stability using vibration as somatosensory stimulation. This system consists of vibratory stimulation and postural response measurement. To evaluate this system, the center of pressure(COP) was closely observed in turn with simultaneous or separate mechanical vibratory stimulations to flexor ankle muscles (tibialis anterior, triceps surae) and two plantar zones on both feet while standing on a stable and an unstable support. The simultaneous vibratory stimulations cleared influenced postural stability and the effects of vibrations were higher with the unstable support. In separate vibratory stimulations, the extent of the COP sway reduced when the direction of the vibratory stimulations and that of the inclination of body coincided for flexor ankle muscle stimulations. In the contrary, the extent of the COP sway increased when the direction of the stimulations and that of body inclination coincided for plantar zone stimulations. These results can be useful for the development of rehabilitation systems that utilizes somatosensory inputs for postural balance.

The Effect of Postural Control Training on Balance and Walking Ability in Patients with Chronic Stroke (자세조절훈련이 만성 뇌졸중 환자의 균형과 보행 능력에 미치는 영향)

  • Bang, Dae-Hyouk;Cho, Hyuk-Shin
    • Journal of the Korean Society of Physical Medicine
    • /
    • v.12 no.2
    • /
    • pp.59-66
    • /
    • 2017
  • PURPOSE: The purpose of this study was to determine the effects of postural control training on balance and walking ability in chronic stroke patients. METHODS: Eighteen chronic stroke patients were allocated equally and randomly to an experimental group (n=9) or a control group (n=9). All participants received 60 minutes of comprehensive rehabilitation treatment, the experimental group additionally received a postural control training for 30 minutes, while the control group additionally performed a treadmill training for 30 minutes. These 30-minute training sessions were held five times per week for three weeks. Balance was assessed using Berg balance scale (BBS) and walking ability (gait speed, cadence, step length, and double limb support) was assessed using the GAITRite system. RESULTS: Improvement on all outcome measures was identified from pre-to-post intervention for both groups (p<.05). Post-intervention, there was a significant between-group difference on measured outcomes (p<.05). The experimental group exhibited greater improvement in the gait speed (p=.01; 95% CI .08-.16), cadence (p=.04; 95% CI .34-4.79), step length (p=.02; 95% CI 1.50-5.17), double limb support period (p=.04; 95% CI -2.18 to -.14), and BBS (p=.01; 95% CI 1.04-6.74) compared to the control group. CONCLUSION: The findings of this study suggest that postural control training may be beneficial for improving balance and walking ability of patients with chronic stroke.

Development of a Virtual Bicycle Simulator for the Rehabilitation Training of Postural Balance (자세균형 재활 훈련을 위한 가상 자전거 시뮬레이터 개발)

  • Jeong, Sung-Hwan;Piao, Yong-Jun;Kwon, Tae-Kyu;Kim, Nam-Gyun
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.24 no.10
    • /
    • pp.137-145
    • /
    • 2007
  • The purpose of this study is developing a virtual bicycle system for improving the ability of postural balance control for adults in various age groups. The system consists of an exercise bicycle that allows tilt in accordance with the postural balance of the subject in the system, a visual display that shows virtual road, and a visual feedback system. The rider of the system tries to maintain balance on the bicycle with a visual feedback of a virtual road while the pedaling speed, the heading direction, and various weight distribution information are updated to the subject as visual feedbacks in the display. A series of experiments were performed with various subjects to find the factors related to postural balance control in the system. The related parameters obtained were weight shift, magnitude of the deviation from the center of the virtual road, and variables related to the movement of the center of pressure. The results found that the ability to control postural balance in the system improved with the presentation of visual feedback information of the distribution of weight. It was also found that the general performance of the subject on balance in the system improved after ten days long training. The results show that the newly developed system can be used for the diagnosis of postural balance as well as for the stimulation of various senses such as vision and somatic sense in the field of rehabilitation training.

Effects of Immobilization of the Ankle and Knee Joints on Postural Stability in Standing (바로 선 자세에서 발목과 무릎관절의 고정이 자세안정성에 미치는 영향)

  • Hwang, Su-Jin;Woo, Young-Keun;Jeon, Hye-Seon
    • Physical Therapy Korea
    • /
    • v.15 no.1
    • /
    • pp.30-37
    • /
    • 2008
  • This study was designed to examine the effects of temporary immobilization of the ankle and knee joints on standing in healthy young adults with the use of a postural control mechanism. The subjects were twenty-four college students (12 males and 12 females, aged between 20 and 28). A Biodex balance system SD 950-302 and its software were used to measure indirect balance parameters in standing. Each subject underwent postural stability tests in 4-different joint conditions: free joints, ankle immobilization only, knee immobilization only, and ankle and knee immobilization. In addition, the postural stability test was conducted once with the subject's eyes open and once with the eyes closed conditions. For data analysis of the postural stability tests, the overall stability index, antero-posterior stability index, and medio-lateral stability index were recorded. The overall stability index (p=.000) and medial-lateral index (p=.003) were significantly greater different conditions with eyes closed in postural stability. Therefore, the eyes closed condition is expected to be used as an effective postural stability training for treatment planning in patients with unstable postures. In addition, training based on the dynamic multi-segment model can improve postural stability and is available to therapeutic programs, helping people with unstable balance to reduce their risk of falling.

  • PDF