• Journal of the Korea Convergence Society
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• v.10 no.7
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• pp.23-31
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• 2019

In this study, we collected data through online travel notes from January to December 2018 and analyzed the seasonal travel characteristics of individual visiting Chinese by utilizing social network analysis. The analysis showed that Seoul is a hub for Chinese travel to Korea and the main destinations for individual visiting Chinese are concentrated in Seoul, Busan, Jeju Island, Gyeongju and Gangneung, with wide differences in seasons. The research results can be used as basic data for the development of tourism courses for individual Chinese tourists to Korea, provision of tourism services and optimization of tourism facility layout. Future research can consider continuing to use network travel notes to study the tourist destination and the mode of transportation between tourist nodes, which can provide reference for the development of tourist market and the planning and design of tourist traffic.

• Journal of the Korean Society of Physical Medicine
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• v.16 no.1
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• pp.41-48
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• 2021

PURPOSE: The purpose of this study was to provide fundamental clinical data to be used in therapeutic approach to patients with patellofemoral pain syndrome by administrating the squat exercise combined with whole body vibration exercise to them and investigating the effect of such exercise to leg muscle activity and muscle fatigue. METHODS: The patients with patellofemoral pain syndrome were randomly assigned to experimental group I (n = 9) where only squat exercise was administered and experimental group II (n = 9) where the squat exercise combined with whole body vibration exercise was provided. The intervention program was administered for two weeks, four days a week, one session a day, three set a session, and 20 reps a set. The pre- and post-test were performed to measure muscle activity and muscle fatigue of vastus medialis and vastus lateralis. RESULTS: The muscle activity significantly changed in both group (p < .05, p < .01, respectively) and the muscle fatigue showed significant change only in group I (p < .05). In addition, there was significant difference between groups in change of muscle fatigue of both muscles (p < .05) but not in change of muscle activity. CONCLUSION: The results showed that both exercise are effective in improving muscle activity, however, that the squat exercise combined with whole body vibration exercise is more effective in preventing muscle fatigue.

• Journal of the Korean Society of Physical Medicine
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• v.16 no.3
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• pp.99-106
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• 2021

PURPOSE: This study aimed to provide supporting data for the clinical use of breathing exercise with a WBV stimulation as a sustained and safe intervention program, by examining the effect of breathing exercise with WBV stimulation on the pulmonary function, gait ability, and life quality in patients with severe chronic obstructive pulmonary disease (COPD), who have difficulty performing exercise. METHODS: For this study, after collecting the samples from 20 patients with severe COPD, they were placed randomly in an experimental group to perform breathing exercises with a WBV stimulation (n = 10) and a control group to perform breathing exercises only (n=10). Before the intervention, pulmonary function, six-minute gait distance, and health-related life quality were measured as pre-tests. After applying the intervention program to the patients for 30 minutes once a day, for four days a week, for six weeks, the post-test items were remeasured in the same way as the pre-tests, and the results were analyzed. RESULTS: In the within-group comparison, both the experimental and control groups showed significant differences in the forced expiratory volume in one second, six-minute gait distance, and health-related life quality (p < .01) (p < .05). In the intergroup comparison, there were significant differences in the forced expiratory volume in one second and the six-minute gait distance (p < .05). CONCLUSION: WBV stimulation was more effective for the patients by improving the muscular strength and muscular endurance through the reflexive contraction of muscles, and increasing the exercise tolerance. This result could serve as an alternative means to clinically improve the physical function of patients with severe COPD, who have difficulty performing breathing exercises in the future.

• Journal of the Korean Society of Physical Medicine
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• v.18 no.1
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• pp.1-8
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• 2023

PURPOSE: This study analyzed how proprioceptive neuromuscular facilitation (PNF) combined with auricular acupuncture affected the activation of the leg muscles of stroke patients and measured the effects of this combination to provide clinical data. METHODS: The subjects were divided randomly into experimental group I, which received PNF combined with auricular acupuncture, and experimental group II, which received PNF alone. Each group had ten members. A 30-minute intervention was performed four days a week for six weeks. Before the six weeks of intervention, pre-tests were conducted to measure muscle activation in the legs. After six weeks, post-tests were also conducted to measure muscle activation in the legs. RESULTS: Experimental group I showed a statistically significant difference in muscle rectus femoris, muscle biceps femoris, muscle tibialis anterior, and muscle soleus. Experimental group II also showed a statistically significant difference in the muscle rectus femoris, muscle biceps femoris, muscle tibialis anterior, and muscle soleus (p < .05). In a between-group comparison of the changes, a statistically significant difference was observed between the two groups in terms of muscle rectus femoris, muscle biceps femoris, muscle tibialis anterior, and muscle soleus (p < .05). CONCLUSION: Intervention in experimental group I increased the activation of the leg muscles more effectively because auricular acupuncture was applied to various spots on the ear corresponding to the spleen, liver, kidney, pelvis, knee, ankle, and toe. Auricular acupuncture is expected to be used more widely in the future because it is a safe way of stimulating muscle activation.

• Journal of the Korean Society of Physical Medicine
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• v.18 no.1
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• pp.15-24
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• 2023

PURPOSE: This study examined the effects of lowintensity resistance exercise combined with blood flow restriction on muscle activity and muscle fatigue to determine if such a combination may be an alternative to high-intensity resistance exercise in maintaining the muscle mass and strength and preventing degenerative loss of skeletal muscle and to provide basic data for presenting the effectiveness of exercise. METHODS: The interventions were provided for five weeks, four sessions a week, once a day, 60 minutes a session to Experimental group I (n = 13), in which low-intensity resistance exercise was applied by combining blood flow restriction with the biceps curl and experimental group II (n = 12), in which only high-intensity resistance exercise was applied. As a pre-test, the biceps brachii muscle activity and fatigue were measured by surface electromyography, and the hemodynamic variables, such as blood pressure and heart rate, were measured. The post-test was performed identically to the pre-test and compared and analyzed with the pre-test. RESULTS: A significant difference within-group was observed in the biceps brachii muscle activity and fatigue in experimental group I and only in biceps brachii activity in experimental group II. No significant differences were observed between the two groups. CONCLUSION: Since the low-intensity resistance exercise combined with blood flow restriction has similar effects to high-intensity resistance exercise, it is considered an alternative for improving muscle function in groups unable to perform high-intensity resistance exercise.

• Journal of the Korean Society of Physical Medicine
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• v.18 no.3
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• pp.39-45
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• 2023

PURPOSE: This study aimed to provide the basic data necessary for rehabilitation by identifying the effects of complex balance exercises combined with self-observation training on balance and gait improvement in stroke patients. METHODS: This study assigned 20 people randomly into two groups: the control and experimental groups. The experimental group (10 subjects) underwent self-observation training-combined complex balance exercise. The control group (10 subjects) underwent complex balance exercises. A pretest of the balance ability and walking ability of both groups was performed. The interventions were conducted for 30 minutes three times a week for four weeks, and post-tests were conducted four weeks after all interventions were completed. RESULTS: There was a significant difference between the experimental and control groups according to the increase in Berg Balance Sale within the group and a statistically significant difference by a decrease in 10MWT (p < .01). On the other hand, there was a significant difference only in the change in Berg Balance Sale between the two groups (p < .05). CONCLUSION: Combined balance exercise combined with self-observation training and combined balance exercise alone positively affected the Berg Balance Sale and 10MWT in both groups. On the other hand, in the results between groups, there was a statistically significant difference in Berg Balance Sale in complex balance exercise combined with self-observation training. Therefore, self-observation training should be used for the rapid social rehabilitation of stroke patients.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.28 no.1
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• pp.71-80
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• 2022

Background: This study investigated the effect of robot-assisted arm training on muscle activity of arm and weight bearing in stroke patients. Methods: The study subjects were selected 20 stroke patients who met the selection criteria. 10 people in the robot-assisted arm training group and 10 people in the task-oriented arm training group were randomly assigned. The experimental group performed robot-assisted arm training, and the control group performed task-oriented arm training for 6 weeks, 5 days a week, 30 minutes a day. The measurement tools included surface electromyography and smart insole system. Data were analyzed using independent sample t-test and the paired sample t-test. Results: Comparing the muscle activity of arm within the group, the experimental group and the control group showed significant differences in muscle activity in the biceps brachii, triceps brachii, anterior deltoid, upper trapezius, middle trapezius, and lower trapezius. Comparing the muscle activity of arms between the groups, the experimental group showed significant difference in all muscle activity of arm compared to the control group. Comparing the weight bearing within the groups, the experimental group showed significant difference in the affected side and non-affected side weight bearings and there were significant differences in anterior and posterior weight bearing. The control group showed significant difference only in the non-affected side weight bearing. Comparing the weight bearings between groups, the experimental group showed significant difference in the affected side and non-affected side weight bearings compared to the control group. Conclusion: This study confirmed that robot-assisted arm training applied to stroke patients for 6 weeks significantly improved muscle activity of arm and weight bearing. Based on these results, it is considered that robot-assisted arm training can be a useful treatment in clinical practice to improve the kinematic variables in chronic stroke patients.

• Industry Promotion Research
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• v.9 no.3
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• pp.27-39
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• 2024

Modern tourists prefer resorts with various facilities for health, leisure, sports, and cultural activities. The tourism industry strives to diversify entertainment programs to meet consumer needs. This study identifies servicescape as a primary competitive advantage and aims to propose effective marketing strategies and strategic insights to maximize tourists' perceived value and enhance satisfaction. To achieve this research objective, an online questionnaire survey was administered to customers with prior experience at the Atlantis Resort in Sanya, China, followed by statistical analysis using the SPSS 23.0 software. The findings indicate that servicescape, by providing optimal value to customers within the service industry, exhibits a positive correlation with customer satisfaction and constitutes a critical factor for the success of tourism enterprises.

• Proceedings of the Acoustical Society of Korea Conference
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• spring
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• pp.241-244
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• 2000

잔향음 세한 환경에서 능동소오나를 운용시 잔향음은 표적탐지를 저해하는 중요한 요인으로 작용한다. 그러한 환경에서 잔향음을 효과적으로 제거하고 표적신호를 보존하기 위한 기법으로 priori estimation error를 사용하는 deterministic LSL(least squares lattice) 알고리즘을 적용하였으며, LSL 필터의 입력신호는 천해에서 고주파 센서를 이용하여 실측한 CW 및 FM 잔향음신호와 모의된 표적신호를 합성한 신호를 이용하였다. 모의 실험 결과 잔향음신호는 상당히 감소되었을 뿐 만 아니라 도플러 변화가 없는 표적신호에 대해서도 LSL필터는 양호한 응답을 보였다.

• Journal of The Korean Society of Integrative Medicine
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• v.7 no.2
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• pp.31-38
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• 2019

Purpose : This study aimed to investigate the correlation between social participation and interpersonal relationships after stroke. Methods : Scores for the Korean version of the Reintegration to Normal Living Index (K-RNLI) and the Relationship Change Scale (RCS) were determined using a face-to-face test for 98 patients who had a stroke between September 3, 2018, and January 10, 2019. SPSS 22.0 was used for the analysis, and the correlation coefficient between social participation and interpersonal relationships was determined. Results : According to the patients' general characteristics, social participation was related to sex, type of lesion, and affected side, and interpersonal relationships showed a significant difference with respect to the affected side (p<.05). The analysis of social participation and interpersonal relationships of the subjects revealed a high correlation with total score (r=.364; p<.01), and all the items showed correlations except sensitivity (p<.05). Conclusion : Social participation and interpersonal relationships are important factors for reintegrating stroke patients into the community. The results of this study suggest a clinical basis for rehabilitation interventions in stroke patients.