• Title/Summary/Keyword: Gait Pattern

Search Result 294, Processing Time 0.026 seconds

Plantar Hypoesthesia Alters Gait Kinematics Pattern in Individuals with and without Chronic Ankle Instability (만성 발목 불안정성 환자군과 정상인 군의 발바닥 감각기능 저하에 따른 운동학적 보행 패턴의 변화)

  • Kang, Tae Kyu;Lee, Sae Yong;Lee, Inje;Kim, Byong Hun;Jeong, Hee Seong;Kim, Chang Young
    • Korean Journal of Applied Biomechanics
    • /
    • v.31 no.2
    • /
    • pp.79-86
    • /
    • 2021
  • Objective: The purpose of this study was to identify the effect of reduced plantar cutaneous sensation on gait kinematics during walking with and without CAI. Method: A total of 20 subjects involved in this study and ten healthy subjects and 10 CAI subjects participated underwent ice-immersion of the plantar aspect of the feet before walking test in this study. The gait kinematics were measured before and after ice-immersion. Results: We observed a before ice-immersion on plantar cutaneous sensation, CAI subject were found to reduced ankle dorsiflexion, knee external rotation, hip adduction, and internal rotation compared to control subject. After ice-immersion, CAI subjects were found to reduce knee external rotation, hip adduction. However, no significant ankle joint kinematics. Conclusion: While walking, gait pattern differences were perceived between groups with and without plantar cutaneous sensation. The results of the study may explain the abductions in the hip angle movements in CAI patients at initial contact compared to healthy subjects in the control group when plantar cutaneous sensation was reduced. A change in proximal joint kinematics may be a conservative strategy to promote normal gait patterns in CAI patients.

Effect of Treadmill Walking Training using the Metronome on Gait Pattern (메트로놈을 이용한 트레드밀 보행훈련이 보행패턴에 미치는 영향)

  • Yoon, Won-Chan;Park, Sun-Wook
    • Journal of the Korean Society of Physical Medicine
    • /
    • v.15 no.2
    • /
    • pp.101-108
    • /
    • 2020
  • PURPOSE: The purpose of this study was to investigate the effect of treadmill walking training using the metronome on the gait pattern. METHODS: A total of 33 healthy persons were studied consisting of 17 female and 16 male in the 20-30 age group. A gait analysis program was installed on a treadmill with a built - in gait analysis sensor and laptop. After 9 minutes of treadmill walking, gait analysis was performed for 1 minute. The mean values of the differences in the step length, angle of COP, separation line standard deviation and step force of the lower legs affecting walking symmetry were calculated for treadmill walking and treadmill walking using the metronome. The Shapiro-Wilk test was used to test the normality of the collected data and a paired t-test was performed to analyze the difference in walking before and after using the metronome. RESULTS: As a result of the analysis, the mean of difference between the measured values of the bilateral lower extremity for step length, angle of COP, separation line standard deviation and step force were statistically significant before and after treadmill walking using the metronome. CONCLUSION: Therefore, the treadmill walking training using the metronome is effective in decreasing the difference in the foot width, gait angle, gait distribution, and foot pressure. Because of this, the treadmill walking training using the metronome has a significant effect on walking symmetry among the elements for correct walking, which is a means for enabling efficient and continuous walking.

The change of gait pattern according to different walking speeds in a patient with Parkinson disease (파킨슨환자의 보행 속도에 따른 보행 양상 변화)

  • Oh, Jaegun;Park, Kee-eon;Jung, Byongjun;Lee, Ilsuk;Choi, Sanho;Lee, Sangkwan;Sung, Kang-keyng
    • The Journal of the Society of Stroke on Korean Medicine
    • /
    • v.14 no.1
    • /
    • pp.90-101
    • /
    • 2013
  • ■ Objectives The goal of this study was to observe the gait patterns from a patient with Parkinson disease under three different walking speeds. ■ Methods The patient walked on a treadmill and we measured gait parameters using a treadmill gait analysis system for 2 minutes. The Parkinson patients walked under three different conditions, first, at the preferred walking speed, second, at slower speed than the preferred walking speed, and, third, at faster speed than the preferred walking speed. ■ Results In terms of temporal gait parameters, as speed of treadmill increased, stance phase and total double support decreased, and swing phase increased. In terms of spatial parameters, as speed of treadmill increased, step and stride length increased. In terms of kinetic parameters, max pressure increased as speed of treadmill increased. ■ Conclusion According to different walking speeds, some gait parameters of spatiotemporal and kinetic was changed.

  • PDF

Development of the Robotic Gait Trainer for Persons with Gait Disorder (보행 장애인을 위한 로봇형 보행훈련 시스템의 개발)

  • Hwang, Sung-Jae;Son, Jong-Sang;Kim, Jung-Yoon;Sohn, Ryang-Hee;Kim, Young-Ho
    • Proceedings of the KIEE Conference
    • /
    • 2008.04a
    • /
    • pp.73-74
    • /
    • 2008
  • In this study, we developed a robotic gait trainer which induces the active gait training based on predefined continuous proper lower extremity joint movements. AC servo motors and linear actuators were used to control hip and knee joints of patients and the weight support system was used to support the patient's weight during the gait training. We also implemented a Gill program to set the gait training pattern with several training parameters and to confirm states of patients and the system through the visual feedback. The effectiveness of the gait training system will be determined by the long-term clinical experiments in the future. We expect that the developed robotic gait training system could be applied very practically to recover gait abilities for persons with gait disorder.

  • PDF

Characteristics for Gait of the Induced Equinus in Normal Subjects (정상인에서 유도된 첨족에 따른 신체 보행의 특성)

  • Woo, Byung-Hoon
    • Korean Journal of Applied Biomechanics
    • /
    • v.24 no.4
    • /
    • pp.435-443
    • /
    • 2014
  • The purposes of this study was to investigate the physical compensation for gait on induced equinus in normal subjects. Ten subjects were participate in the experiment (age: $23.8{\pm}2.8yrs$, height: $177.3{\pm}4.3cm$, weight: $70.8{\pm}4.6kg$). The study method adopted 3D analysis with six cameras and ground reaction force with two force-plate. Induced equinus were classify as gait pattern on unilateral and bilateral equinus. The results were as follows; In displacement of COM, medio-lateral and anterior-posterior COM were no significant, but in vertical COM, unilateral equinus gait was higher than bilateral equinus gait. In displacement hip joint, left hip joint was more extended in FC1 and FC2 during unilateral equinus gait. In displacement knee joint, left knee joint was more extended in FC2, right knee joint was more extended in all event during unilateral equinus gait. In trunk tilt, unilateral equinus gait was more forward tilt in TO1 and TO2. ROM of each joint was no significant. In Displacement of pelvic tilt angle, X axis of unilateral equinus gait was more increase than bilateral equinus gait at FC2, TO2 and MS2. Y axis of unilateral equinus gait was more increase than bilateral equinus gait at MS1, FC2 and MS2. Z axis was no significant in both equinus gait. In GRF, right Fx and Fy were no significant in both equinus gait, Fz was more bigger vertical force in bilateral equinus gait. Left Fx was more bigger internal force in unilateral equinus gait, Fy and Fz were no significant in both equinus gait.

Transformation Based Walking Speed Normalization for Gait Recognition

  • Kovac, Jure;Peer, Peter
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.7 no.11
    • /
    • pp.2690-2701
    • /
    • 2013
  • Humans are able to recognize small number of people they know well by the way they walk. This ability represents basic motivation for using human gait as the means for biometric identification. Such biometric can be captured at public places from a distance without subject's collaboration, awareness or even consent. Although current approaches give encouraging results, we are still far from effective use in practical applications. In general, methods set various constraints to circumvent the influence factors like changes of view, walking speed, capture environment, clothing, footwear, object carrying, that have negative impact on recognition results. In this paper we investigate the influence of walking speed variation to different visual based gait recognition approaches and propose normalization based on geometric transformations, which mitigates its influence on recognition results. With the evaluation on MoBo gait dataset we demonstrate the benefits of using such normalization in combination with different types of gait recognition approaches.

Effect of Body Weight Support Treadmill Training on Gait and Standing Balance in Patients With Hemiplegia (체중지지 트레드밀훈련이 편마비 환자의 보행과 서기균형에 미치는 영향)

  • Kim, Myoung-Jin;Lee, Jeong-Ho
    • Physical Therapy Korea
    • /
    • v.10 no.1
    • /
    • pp.29-35
    • /
    • 2003
  • Body weight support treadmill training is a new and promising therapy in gait rehabilitation of patients with hemiplegia. The purpose of this study was to identify the effects of body weight support treadmill training on gait and standing balance in patients with hemiplegia. Eighteen patients with hemiplegia participated in the study. A 10 m-timed walk test, measurements of step length and standing balance score were administered. Intervention consisted of body weight support treadmill training five times a week for 2 weeks. The data were analyzed by paired t-test. Body weight support treadmill training scoring of standing balance, step length and 10 m-timed walk test showed a definite improvement. Body weight support treadmill training offers the advantages of task-oriented training with numerous repetitions of a supervised gait pattern. The outcomes suggest that patients with hemiplegia can improve their gait ability and standing balance through body weight support treadmill training.

  • PDF

Robust RGB image-based gait analysis in various environment (다양한 환경에 강건한 RGB 영상 기반 보행 분석)

  • Ahn, Ji-min;Jeung, Gyeo-wun;Shin, Dong-in;Won, Geon;Park, Jong-beom
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2018.10a
    • /
    • pp.441-443
    • /
    • 2018
  • This paper deals with the analysis of leg motion using RGB image. We used RGB image as gait analysis element by using BMC(Background Model Challenge) method and by using combining object recognition segmentation algorithm and attitude detection algorithm. It is considered that gait analysis incorporating image can be used as a parameter for classification of gait pattern recognition and abnormal gait.

  • PDF

The relationship of between apply presence cervical orthosis and temporal parameters of gait (목보조기의 적용 유무와 보행의 시공간적 변수와의 관계)

  • Choe, Han-Seong;Lee, Jae-Ryong;Shin, Hwa-Kyung
    • Journal of Korean Physical Therapy Science
    • /
    • v.18 no.3
    • /
    • pp.33-39
    • /
    • 2011
  • Background : The purpose of this study was to apply cervical orthosis for temporal parameters of gait was to evaluate the effect. Methods : Seven normal adults participated in this study. Before and after applying a cervical orthosis compared to gait. Outcome measure were: general characteristics, temporal parameters of gait. General chacteristics included age, gender, height, weight. Temporal parameters included the Velocity cycle, Stride length, Step length, Cadence cycle, Initial double support time. Temporal parameters of gait, using the motion analysis system for cervical orthosis were evaluated before and after applying. The data was analyzed using SPSS 12.0 software and the Wilcoxon's signed-ranks test. Results : Velocity cycle and Step length were no significant differences(p>0.05). But Stride length, Cadence cycle, Initial double support time were significant(p<0.05). After apply Cervical orthosis in gait, Stride length and Initial double support time was decreased and Cadence cycle was increased. Conclusion : Changes in temporal of temporal parameters of gait was apply a cervical orthosis with the limitations of vision due to take effect. Therefore, Cervical orthosis does not interfere with the normal gait pattern by limiting the Range of Motion so that we consider to apply.

  • PDF