1.The Effects of Action Observation with Functional Electrical Stimulation on Corticomuscular Coherence
Ji Young KIM ; Young Uk RYU ; Jiwon PARK
Journal of Korean Physical Therapy 2020;32(6):365-371
Objective:
To investigate the action observation effects of functional electrical stimulation (FES) on the communication between motor cortex and muscle through corticomuscular coherence (CMC) analysis.
Methods:
Electroencephalogram (EEG) and electromyogram (EMG) of 27 healthy, nonathlete subjects were measured during action observation, FES, and action observation with FES, which lasted for 7sper session for 10 times. All trials were repeated for 30 times. Simultaneously measured EEG raw data and rectified EMG signals were used to calculate CMC. Only confidence limit values above 0.0306 were used for analysis. CMC was divided into three frequency domains, andthe grand average coherence and peak coherence were computed. Repeated ANOVA was performed to analyze the coherence value difference for each condition’s frequency band.
Results:
CMC showed significant differences in peak coherence and average coherence between the conditions (p<0.05). Action observation application with FES in all frequency band showed the highest peak and average coherence value.
Conclusions
The results of this study are assumed to be the combination of increased eccentric information transfer from the sensory-motor cortex by action observation and an increased in concentric sensory input from the peripheral by the FES, suggesting that these are reflecting the sensorimotor integration process.
2.Comparative Analysis of the Serratus Anterior Muscle Activity When Right and Left Knee Lift during Quadruped Position on Push Up Plus
KiSeok NAM ; JiWoong KIM ; JiWon PARK
Journal of Korean Physical Therapy 2020;32(1):58-63
Purpose:
This study examined the effects of the right or left knee lift during push up plus in the quadruped position on the serratus anterior (SA) muscle activity.
Methods:
Twenty-one subjects (male 11, female 10) performed the quadruped position on push up plus. The muscle activities of the lower trapezius (LT), SA, and upper trapezius (UT) were measured by surface electromyography. Repeated measurements of one-way ANOVA were performed for statistical analysis of the data, and the criterion for statistical significance was set to p<0.05 and comparative analysis of the UT and SA ratio using a Paired t-test.
Results:
The right SA increased the muscle activity of the right knee lift during quadruped position push up plus (p<0.05). In particular, the right SA muscle activity was higher than the left. In addition, comparative analysis of the UT and SA ratio to the right knee lift during quadruped position push up plus was performed (p<0.05). The right was found to be a significant statistic compared to the left, but the left SA increased the muscle activity of the left knee lift during quadruped position push up plus (p<0.05). The left SA muscle activity was higher than right. In addition, comparative analysis of UT and SA ratio to the left knee lift during quadruped position push up plus was performed (p<0.05). The left was found to be a significance statistic than the right. In addition, the interaction effect between the groups showed significant differences (p<0.05).
Conclusion
Knee lift during push up plus is recommended for the selective activation of a research exercise protocol of one side of the serratus anterior.
3.Meta-Analysis on the Effect of Therapeutic Horseback Riding on Children with Developmental Disabilities and Neural Patients
Hyunju NOH ; Jiyoung KIM ; Jiwon PARK
Journal of Korean Physical Therapy 2020;32(5):312-318
Purpose:
This study aimed to investigate the evidence that therapeutic horseback riding can improve balance, muscle, ADL, equivalenc, GMFM, gait, emotion with developmental disabilities and neural patients.
Methods:
To conduct meta-analysis, the search focused on studies that employed therapeutic horseback riding for developmental disabilities and neural patients for which eight databases (KIS, RISS, DBpia, National Assembly Library, Pubmed, Embase, Google scholar and Cochrane Library) were used to extract literature published from 2002 to September 2019. The data were analyzed the RevMan 3.5.3 program.
Results:
As a result of meta-analysis, therapeutic horseback riding total effect size is 0.552 for children with developmental disabilities and neural patients. And effect size result of according to assessment type variable first, balance effect size is 0.594. Second, muscle activities effect size is 0.425. Third, ADL effect size is 0.430. Fourth, equivalance effect size is 0.640. Fifth, GMFM effect size is 0.482. Sixth, gait effect size is 0.400 and seventh emotion effect size is 0.876.
Conclusion
These findings is horseback riding is effective The effect size by outcome was observed to be the effective for children with developmental disabilities and neural patients. and also the horseback riding provided the positive effects of balance, muscle activities, ADL, equivalance, GMFM, gait, emotion for children with developmental disabilities and neural patients. It is hoped that this study will contribute to the development of effective treatments for children with developmental disabilities and neural patients therapeutic horseback riding and the development of study.
4.Effects of Functional Electrical Stimulation Intensity Level on Corticomuscular Coherence during Action Observation
Ji Young KIM ; Hyunju NOH ; Jiwon PARK
Journal of Korean Physical Therapy 2020;32(5):307-311
Purpose:
This study examined the effects of changes in the intensity of Functional Electrical Stimulation (FES) on CorticoMuscular Coherence (CMC) during action observation. This paper presents a neurophysiological basis for the effective intensity of FES.
Methods:
Twenty-seven healthy volunteers were asked to observed a video with FES. The FES was provided with a sensory stimulation level, nerve stimulation level, and motor stimulation level. Simultaneously, an electroencephalogram (EEG) of the sensorimotor cortex and electromyogram (EMG) from the wrist extensor muscle were recorded. The peak CMC and average CMC were analyzed to compare the differences caused by the FES intensity.
Results:
The peak CMC showed a significant increase in the alpha band during motor stimulation (p<0.05). The average CMC showed a significant increase in the beta band during motor stimulation (p<0.05).
Conclusion
The intensity of FES, which causes actual movement, increased the CMC during action observation. These results show that the intensity of the FES can affect the functional connection between the sensorimotor cortex and muscle.
5.The Effects of Action Observation with Functional Electrical Stimulation on Corticomuscular Coherence
Ji Young KIM ; Young Uk RYU ; Jiwon PARK
Journal of Korean Physical Therapy 2020;32(6):365-371
Objective:
To investigate the action observation effects of functional electrical stimulation (FES) on the communication between motor cortex and muscle through corticomuscular coherence (CMC) analysis.
Methods:
Electroencephalogram (EEG) and electromyogram (EMG) of 27 healthy, nonathlete subjects were measured during action observation, FES, and action observation with FES, which lasted for 7sper session for 10 times. All trials were repeated for 30 times. Simultaneously measured EEG raw data and rectified EMG signals were used to calculate CMC. Only confidence limit values above 0.0306 were used for analysis. CMC was divided into three frequency domains, andthe grand average coherence and peak coherence were computed. Repeated ANOVA was performed to analyze the coherence value difference for each condition’s frequency band.
Results:
CMC showed significant differences in peak coherence and average coherence between the conditions (p<0.05). Action observation application with FES in all frequency band showed the highest peak and average coherence value.
Conclusions
The results of this study are assumed to be the combination of increased eccentric information transfer from the sensory-motor cortex by action observation and an increased in concentric sensory input from the peripheral by the FES, suggesting that these are reflecting the sensorimotor integration process.
6.Comparative Analysis of the Serratus Anterior Muscle Activity When Right and Left Knee Lift during Quadruped Position on Push Up Plus
KiSeok NAM ; JiWoong KIM ; JiWon PARK
Journal of Korean Physical Therapy 2020;32(1):58-63
Purpose:
This study examined the effects of the right or left knee lift during push up plus in the quadruped position on the serratus anterior (SA) muscle activity.
Methods:
Twenty-one subjects (male 11, female 10) performed the quadruped position on push up plus. The muscle activities of the lower trapezius (LT), SA, and upper trapezius (UT) were measured by surface electromyography. Repeated measurements of one-way ANOVA were performed for statistical analysis of the data, and the criterion for statistical significance was set to p<0.05 and comparative analysis of the UT and SA ratio using a Paired t-test.
Results:
The right SA increased the muscle activity of the right knee lift during quadruped position push up plus (p<0.05). In particular, the right SA muscle activity was higher than the left. In addition, comparative analysis of the UT and SA ratio to the right knee lift during quadruped position push up plus was performed (p<0.05). The right was found to be a significant statistic compared to the left, but the left SA increased the muscle activity of the left knee lift during quadruped position push up plus (p<0.05). The left SA muscle activity was higher than right. In addition, comparative analysis of UT and SA ratio to the left knee lift during quadruped position push up plus was performed (p<0.05). The left was found to be a significance statistic than the right. In addition, the interaction effect between the groups showed significant differences (p<0.05).
Conclusion
Knee lift during push up plus is recommended for the selective activation of a research exercise protocol of one side of the serratus anterior.
7.Meta-Analysis on the Effect of Therapeutic Horseback Riding on Children with Developmental Disabilities and Neural Patients
Hyunju NOH ; Jiyoung KIM ; Jiwon PARK
Journal of Korean Physical Therapy 2020;32(5):312-318
Purpose:
This study aimed to investigate the evidence that therapeutic horseback riding can improve balance, muscle, ADL, equivalenc, GMFM, gait, emotion with developmental disabilities and neural patients.
Methods:
To conduct meta-analysis, the search focused on studies that employed therapeutic horseback riding for developmental disabilities and neural patients for which eight databases (KIS, RISS, DBpia, National Assembly Library, Pubmed, Embase, Google scholar and Cochrane Library) were used to extract literature published from 2002 to September 2019. The data were analyzed the RevMan 3.5.3 program.
Results:
As a result of meta-analysis, therapeutic horseback riding total effect size is 0.552 for children with developmental disabilities and neural patients. And effect size result of according to assessment type variable first, balance effect size is 0.594. Second, muscle activities effect size is 0.425. Third, ADL effect size is 0.430. Fourth, equivalance effect size is 0.640. Fifth, GMFM effect size is 0.482. Sixth, gait effect size is 0.400 and seventh emotion effect size is 0.876.
Conclusion
These findings is horseback riding is effective The effect size by outcome was observed to be the effective for children with developmental disabilities and neural patients. and also the horseback riding provided the positive effects of balance, muscle activities, ADL, equivalance, GMFM, gait, emotion for children with developmental disabilities and neural patients. It is hoped that this study will contribute to the development of effective treatments for children with developmental disabilities and neural patients therapeutic horseback riding and the development of study.
8.Effects of Functional Electrical Stimulation Intensity Level on Corticomuscular Coherence during Action Observation
Ji Young KIM ; Hyunju NOH ; Jiwon PARK
Journal of Korean Physical Therapy 2020;32(5):307-311
Purpose:
This study examined the effects of changes in the intensity of Functional Electrical Stimulation (FES) on CorticoMuscular Coherence (CMC) during action observation. This paper presents a neurophysiological basis for the effective intensity of FES.
Methods:
Twenty-seven healthy volunteers were asked to observed a video with FES. The FES was provided with a sensory stimulation level, nerve stimulation level, and motor stimulation level. Simultaneously, an electroencephalogram (EEG) of the sensorimotor cortex and electromyogram (EMG) from the wrist extensor muscle were recorded. The peak CMC and average CMC were analyzed to compare the differences caused by the FES intensity.
Results:
The peak CMC showed a significant increase in the alpha band during motor stimulation (p<0.05). The average CMC showed a significant increase in the beta band during motor stimulation (p<0.05).
Conclusion
The intensity of FES, which causes actual movement, increased the CMC during action observation. These results show that the intensity of the FES can affect the functional connection between the sensorimotor cortex and muscle.
9.The Relationship between the Health System and the COVID-19 Case Fatality Rate
Hansol LEE ; Sieun LEE ; Jiwon PARK ; Yuri LEE
Health Policy and Management 2023;33(4):421-431
Background:
The coronavirus disease 2019 (COVID-19) pandemic has led to socio-economic issues, highlighting the importance of strengthening health systems for future infectious diseases. This study aims to analyze the relationship between health system preparedness, response levels, and COVID-19 fatality rates across 194 countries.
Methods:
This study examined various indicators of national health system preparedness and response, including health service delivery, health workforce, health information systems, essential medicines and health products, health financing, and leadership and governance.
Results:
A correlation was found between the health system and the COVID-19 case fatality rate (CFR). Further examination of specific indicators within health service delivery, health workforce, health information systems, health financing, and leadership/governance showed significant correlations with the CFR. Multiple regression analysis, considering aging and urbanization rates, identified reproductive/maternalewborn and child health, infectious diseases, nursing and midwifery personnel density, birth registration coverage, and out-of-pocket health expenditure as significant factors affecting the CFR.
Conclusion
Countries with strong health system indicators experience lower case fatality rate from COVID-19. Strengthening access to essential health services, increasing healthcare personnel and resources, ensuring reliable health information, and bolstering overall health systems are crucial for preparedness against future infectious diseases.
10.Trauma Induced Cutaneous Angiosarcoma of the Scalp
Wanjin KIM ; Hee Ung PARK ; Jiwon LEE ; Byung In RO ; Han Kyoung CHO
Korean Journal of Dermatology 2023;61(10):648-650