• Journal of the Korea Safety Management & Science
• /
• v.17 no.3
• /
• pp.163-171
• /
• 2015

The aim of this study was to investigate kinematic mechanism of gait different road conditions(dry vs. oil) in order women. For this study, twenty older women and ten young women participated in this research. twelve infrared cameras were used to collect data. It appeared that the gait strategies of older women were slower velocity and higher CoM than young women. Depending on road conditions, gait velocities of dominant muscle older women on dry surface were faster than dominant sense older women, but those of them were inverse on oil surface. The slip displacement of dominant muscle older women was less than young women, but the slip displacement of dominant sense older women was greater than young women. In case of blind during stance phase on oil surface, the rotational motion of the ankle and knee joints were increased. In conclusion, older women were subjected to self-organization theory and phase shift in dynamic theory.

• Journal of Wellbeing Management and Applied Psychology
• /
• v.5 no.1
• /
• pp.1-7
• /
• 2022

Purpose: This study aimed to investigate spatial and temporal features of motor control in an individual with hemiparesis during the curvilinear gait (CG) and proposed an exercise guideline. Research design, data and methodology: An individual aged 63 with hemiparesis by stroke disease was participated in the study. Autoencoder (AE) was used to extract four motor modules from eight muscle activities of the paretic leg during CG. After extraction, each module of four modules was operationally defined by numbering from M1 to M4 according to spatial and temporal features and compared with results reported in a previous study. Results: As a result, an individual with hemiparesis had motor module problems related to difficulty of weight acceptance (module 1), compensation for the weakness of ankle plantar flexor (module 2), a spastic synergistic pattern (module 3) and difficulty with transition from the swing to stance phase (module 4) in terms of spatial features. Also, a delayed activation timing of temporal motor module (module 2) related to the forward propulsion during CG was observed. Conclusions: Gait rehabilitation for the stroke will need to consider clinical significances in respect of the deterioration of motor module and provide the tailored approaches for each gait phase.

• Physical Therapy Rehabilitation Science
• /
• v.11 no.4
• /
• pp.384-390
• /
• 2022

Objective: The purpose of this study was to investigate the effect of the side-step tasks based circular training program (STCT) on balance and gait characteristics in stroke patients. Design: A randomized controlled trial Methods: Twenty-four stroke patients were randomly divided into two groups of twelve patients each. One group was applied with the STCT whereas the other group was treated with conservative physiotherapy (CP). The ability of gait was measured in 10m walking test and stride length on both side using BTS G-WALK (BTS Bioengineering S.p.A, Italy) and the ability of balance was measured in Berg Balance Scale (BBS) and Timed Up and Go Test (TUG). Results: The STCT group was significant differences in the balance parameters of BBS and TUG (p<0.05) and showed significant differences in gait variables in 10m walking speed, stride length of affected and non-affected side after the experiment before and after the experiment (p<0.05). In addition, the STCT group showed a significant difference in BBS compared to the control group (p<0.05). Conclusions: The results of this study confirmed that the side-step tasks based circular training program (STCT) improves balance and walking ability in stroke patients. STCT is expected to be used as a useful intervention method for stroke rehabilitation.

• Journal of Korean Physical Therapy Science
• /
• v.15 no.1
• /
• pp.57-66
• /
• 2008

This study was conducted to investigate the effects of kinesio taping in patients with degenerative arthritis. 40 female patients with degenerative arthritis were voluntarily recruited and randomly divided into experimental and control group. Experimental group(mean age was 73.4 years, height was 153.5cm, and weight was 59.9kg) was applied patellar inferior and medial gliding, quadriceps, tibial external rotation, gastrocnemius, and soleus using a kinesio tape. And control group(mean age was 72.7 years, height was 154cm, and weight was 58.6kg) was received a interferential current therapy(ENDOMED 582, Enraf－Nonius, Holland). And we received a consent form from all subjects. Measuring was conducted by using a 3－dimensional gait analysis system for measuring of stride length, cadence, and velocity. The results were as follow: Stride length was significantly increased after than before treatment(p<.05). Cadence was significantly increased after than before treatment(p<.05). And Velocity was significantly increased after than before treatment(p<.05). Cadence was a significant difference between experimental and control group(p<.05), but there was no significant difference stride length and velocity between two groups. So we suggest that kinesio taping has a effectiveness in patients with degenerative arthritis.

• Journal of the Korean Society of Physical Medicine
• /
• v.13 no.2
• /
• pp.53-60
• /
• 2018

PURPOSE: This study aimed to identify the effect of a backward walking exercise using a mirror on balance and gait in patients with stroke. METHODS: Twenty subjects with post-stroke hemiparesis volunteered to participate in this study. The experimental and control groups performed backward walking exercise plus conventional therapy or conventional physical therapy, respectively, for 6 weeks. Assessment instruments included the Berg Balance Scale (BBS), timed up and go test (TUG), and 10-m walking test (10MWT). Evaluation was performed before and after the 6-week training period. We conducted a paired t-test to compare the within-group changes before and after the intervention. An independent t-test was used to compare between-group differences. The statistical significance level was set at ${\alpha}=.05$ for all variables. RESULTS: The experimental group showed a significant within-group change in the BBS, TUG, and 10MWT (p<.05). The control group also showed a significant change (p<.05). A significant difference was observed between the experimental and control groups with regard to changes in the BBS, TUG, and 10MWT results after the interventions (p<.05). CONCLUSION: This study demonstrated that backward walking exercise using a mirror may be valuable for future research. Further studies with a wider range of pathology and longer experiment duration are required to validate the results of the present study.

• Physical Therapy Korea
• /
• v.17 no.3
• /
• pp.11-19
• /
• 2010

The purpose of the study was to determine the effects of balance training with 'TETRAX' system, a balance training and assessment tool, on balance and mobility in acute hemiplegic patients. Nineteen matched subjects were assigned randomly into either an experimental group or a control group. An experimental group with 10 subjects received balance training with 'TETRAX' exercise program and conventional physical therapy interventions 5 times per week during 4 weeks. A control group with 9 subjects received conventional physical therapy interventions 5 times per week during 4 weeks. Outcome measures were taken before and after 4 weeks of interventions using the Stroke Rehabilitation Assessment of Movement (STREAM), the Berg Balance Scale (BBS), gait speed, and the fall down index. Results indicated that both exercise groups improved significantly in STREAM, BBS, and gait speed (p<.05). The experimental group had a little improvement than the control group. Both exercise groups did not show statistical significance in fall down index (p<.05). Following 4 weeks of intervention, except gait speed there was no statistically significant difference between two groups. However, these findings suggest that conventional physical therapy interventions with visual feedback training could be effective on improving balance and mobility than conventional physical therapy alone in acute hemiplegic patients.

• The Transactions of the Korean Institute of Electrical Engineers D
• /
• v.49 no.5
• /
• pp.257-263
• /
• 2000

One of the basic assumptions in the static gait design for a walking robot is that the weight of leg should be negligible compared to that of body, so that the total gravity center is not affected by swing of a leg. Based on the ideal assumption of zero leg-weight, conventional static gait has been simply designed for the gravity center of body to be inside the support polygon, consisting of each support leg's tip position. In case that the weight of leg is relatively heavy, however, while the gravity center of body is kept inside the support polygon, the total gravity center of walking robot can be out of the polygon due to weight of a swinging leg, which causes instability in walking. Thus, it is necessary in the static gait design of a real robot a compensation scheme for the fluctuation in the gravity center. In this paper, a body impedance control is proposed to obtain the total gravity center based on foot forces measured from load cells of a real walking robot and to adjust its position to track the pre-designed trajectory of the corresponding ideal robot's body center. Therefore, the walking stability is secured even in case that the weight of leg has serious influence on the total gravity center of robot.

• The Journal of Korean Physical Therapy
• /
• v.31 no.4
• /
• pp.169-175
• /
• 2019

Purpose: This study examined the effects of a spiral elastic band for the walking function on patients with chronic stroke. Methods: Twenty one chronic stroke patients were recruited and divided randomly into the experimental group and control group. Both groups performed mat exercises and gait training three times a week for four weeks, and gait training was applied to the experimental group with additional spinal elastic bands. Results: The results of this research were as follows. The 10MWT measurements showed that the velocities within and between the groups decreased significantly, and the results of TUG showed significant decreases in velocities after the interventions in both the control group and experimental group. On the other hand, there were no significant differences between the control and experimental group. The FRT measurements showed significantly increased stride lengths within and between the groups. The measurements of the stride length, stride velocity, cadence, and step length showed significant improvement within the groups, but there was no significant difference between the groups. The measurement of stance showed that the non-paralytic patients had a significant increase in the rates within the groups and a significant difference was observed between the groups. Conclusion: Spiral elastic bands are an effective intervention method for rehabilitation programs to enhance the walking function in the clinical field. A treatment needs to be developed for patients with walking problems due to various disorders by investigating the action mechanism of spiral elastic bands.

• The Journal of Korean Physical Therapy
• /
• v.20 no.2
• /
• pp.11-17
• /
• 2008

Purpose: This study examined the application of electric stimulation to the auricle acupoint (frequency 2 Hz, stimulation level: noxious) with 30 elderly people over 65 years that received treatment in a rural hospital to determine the influence of pain, gait and balance in the aged with knee joint disease. Methods: The subjects were divided into three groups; the degenerative joint diseases (DJD) group (1 male, 9 females), the total knee replacement (TKR) group (1 male, 9 females) and the control group (1 male, 9 females). Auricualr electrical stimulation (AES) was applied with low frequency, high intensity transcutaneous electrical nerve stimulation for 10 seconds per each point. Results: 1. For the change of pain according to AES, there was interaction in the resting period (p<0.001) and gait (p<0.001) and pain of the DJD group and TKR group was decreased. 2. The range of motion (ROM) of the knee joint showed a significant difference in interaction for each group of elderly people (p<0.001) and the ROM for the DJD group and TKR group of elderly people was increased. 3. In the analysis of gait speed changes, there was a significant difference in interaction for each group of elderly people (p<0.001) and for gait speed in the DJD group and TKR group of elderly people. 4. It was found in the change of static balance that there was a significant difference in interaction for each group of elderly people (p<0.01) and balance capacity in the DJD group and TKR group of elderly people was increased. Conclusion: The aged with knee joint disease have pain, and a decreased function of gait and balance. AES was an excellent treatment for control of pain, and an excellent treatment to enhanced joint functions. AES was useful for improving gait and balance due to decreased pain.

• Journal of the Korean Academy of Clinical Electrophysiology
• /
• v.6 no.1
• /
• pp.69-79
• /
• 2008

In this paper, the effects of the external-rotation exercise on the gait of hemiplegia was investigated. 26 patients with hemiplegia due to cerebrovascular accident participated in this study. Subjects were randomly assigned to experimental group(n=12) and control one(n=14). 12 subjects of the experimental group were received the external rotation reducing exercise on the mat with seating and supine posture after the general therapeutic exercise for hemiplegia. 14 subjects of the control group were received only general therapeutic exercise. The effects of external rotation reducing exercise were evaluated by measurements of gait velocity, cadence, stride length, step length and foot angle using ink-foot prints. The collected data were analyzed statistically based on Wilcoxon, Mann-Whitney and correlation analysis. After treatment of three weeks, it turned out that external rotation reducing exercise has the significant effect on foot angle(p<0.01). However the exercise has no statistically significant direct effect on the gait velocity, cadence, stride length and step length.