• 대한물리의학회지
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• 제5권1호
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• pp.25-34
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• 2010

Purpose : The purpose of this study is to assess the effect for gait, balance, and depression for stroke patients by group task-related program training based motor learning theory. Methods : The subjects of this study were administrated to the 11 stroke patients (9 male, 2 female) by 5 weeks, 3 times per week, 15 times. The group task-related program training were performed gait, balance, treadmill, muscle strengthening, and game program. Each program took 7~10 minutes and total time took 60 minutes including moving time. The difference of program training were compared using the paired t-test. Results : The results of this study revealed that Fugl-Meyer motor assessment, Chedoke-McMaster Stroke assessment of lower extremity and Berg balance scale were significantly correlated. However, impairment item of Chedoke-McMaster Stroke assessment, spatio-temporal gait parameters, Timed up and go test, and depression item of Minnesota Multiphasic Personality Inventory were not significantly correlated. Conclusion : These results support that group task-related program could be a useful treatment to improve the balance skills and motor function of lower extremity for the chronic stroke patients.

• The Journal of Asian Finance, Economics and Business
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• 제9권2호
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• pp.437-448
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• 2022

The impact of supervisory communication apprehension (SCA) on subordinates' job performance was investigated in this study. We also examined the impact of task-related uncertainty in mediating the relationship between SCA and subordinate work performance, as well as the role of information-seeking behavior in moderating the relationship between task-related uncertainty and subordinate job performance. A sample of subordinates and their supervisors from public and private sector enterprises in Pakistan were used in the study. The concept of communication apprehension is not limited to a single organization or industry, and the conditions suggest that apprehensive supervisors are likely to exist in different organizations and industries in Pakistan, including banks, telecommunications, and development sector organizations. Company directors and leaders of human resources departments were contacted to reach out to possible respondents. SmartPLS software was used to evaluate the data using a structural equation modeling technique which is commonly used in explanatory studies (Atta et al., 2021). We found evidence to support ideas predicting the association between SCA and subordinate job performance, as well as the mediating role of task-related ambiguity in the relationship. Furthermore, the findings show that information-seeking activity has a moderating effect on the link between task-related ambiguity and subordinate job performance. This is one of the first studies to look at major mediating and moderating mechanisms in the link between SCA and subordinate job performance.

• The Journal of Korean Physical Therapy
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• 제21권4호
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• pp.23-30
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• 2009

Purpose: This study investigated the efficacy of task-related circuit training aimed at improving balance in individuals discharged from rehabilitation facilities following a stroke. Methods: We recruited 12 stroke patients (34-66 years of age) to participate in a task-related circuit training program. Baseline assessment included a history of stroke and an assessment using the Mini-Mental State Examination Korea (MMSE-K). After a baseline assessment, follow-up assessments were administered pre- and post-training. These included Berg Balance Scale (BBS), Functional Reach Test (FRT), and the Time Up & Go Test (TUG). Physiotherapists trained study subjects under the one-to-one supervision of students from the department of physical therapy. Circuit class study participants attended 90-minute treatment sessions, one day a week for 12 weeks (from September to December 2008). The program consisted of a light warm-up period (10 min), physical exercises for improving balance (20 min), tasks focused on improving balance (50 min) and a cool-down period (10 min). Results: Scores for the BBS assessment increased significantly (from 43.2 to 49.7) after the training (p<0.05). Reach distance on the FRT increased substantially (from 27.7 cm to 47.0 cm), although the improvement was not significant (p>0.05). The average time on the TUG test decreased significantly (from 23.7 sec to 19.5 sec) after the training (p<0.05). Conclusion: The task-related circuit training program improved the balance and mobility of subjects, indicating that such a group program is useful for stroke patients who are discharged from the hospital. More such task-related programs set in a community environment should be developed.

• 대한통합의학회지
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• 제4권4호
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• pp.21-32
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• 2016

Purpose: The purpose of this study was to identify whether task-related circuit exercise program combined with sensorimotor training for 4 weeks could improve the balance and gait in stroke patients. Method: Fifteen stroke patients who had agreed with the study were randomly divided into 3 groups categorized as task-related circuit exercise program combined with sensorimotor training group (experimental group 1, n=5), task-related circuit exercise program group (experimental group 2, n=5), and control subjects performed conventional physical therapy (control group, n=5). The balance and gait were assessed by BT-4 force platform system, Berg Balance Scale, 10meter Walk Test and Smart Step at before training and after training. Wilcoxon signed rank test was used to analyze change before and after intervention in intra-group. Kruskal Wallis H test, Mann-Whitney U test and Bonfferoni correction were used to analyze changes of all variables in inter-groups. Result: The experimental group 1 showed significant improvements in postural sway area, BBS scores, walking velocity and plantar pressures of affected foot, whereas the experimental group 2 showed significant improvements in BBS scores, and the control group were no significantly different in all variables following training. The changes of postural sway area and BBS scores in the experimental group 1 were significantly greater than them of the control group. The changes of postural sway area in the experimental group 1 was significantly greater than that of the experimental group 2. Conclusion: The result of this study suggest the task-related circuit exercise program combined with sensorimotor training is an effective intervention to improve balance and gait in stoke patients.

• Investigative Magnetic Resonance Imaging
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• 제6권1호
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• pp.28-34
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• 2002

목적 : Event-related fMRl를 위한 통계학적 자극설계에서 최소 자극간격(Minimum Stimulus Onset Asynchronoy: SOAmin)은 중요한 요소로 알려져 있다. 본 연구에서는 통계학적 자극설계를 이용한 event-related fMRI에서 언어과제와 운동과제의 보다 큰 활성화 신호를 얻기 위한 치적의 SOAmin을 알아보고자 하였다. 대상 및 방법 : 4명의 오른손잡이 정상 자원자를 대상으로 운동과 언어의 event-related fMRI를 얻었다. 기능적 자기공명영상은 1.5T기기에서 EPI-BOLD시퀀스를 사용하였다. 각 과제에서 SOAmin을 2, 3, 4, 6초로 달리한 4회의 자극을 이용하여 활성화를 유도하였다. 영상 후 처리는 SPM99를 이용하였으며 활성화 신호의 유의수준은 p<0.05를 기준으로 하였다. 각 과제에서 나타난 활성화 신호를 Z값, 활성화된 화소수와 군집성을 기준으로 비교하였다. 결과 : 운동과제에서는 중심구(1차 운동영역)와 내전두엽(2차 운동영역)에서 활성화 신호가 나타났고, 언어과제에서는 좌측 하전두회 (Broca영역)에서 일정한 활성화 신호가 나타났다. 운동과 언어과제에서 활성화 신호는 SOAmin이 작아질 수록 커지는 경향을 나타내었다. 운동과제에서 1차 운동영역의 활성화 신호는 3초, 2차 운동영역에서는 2초의 SOAmin을 적용한 경우 가장 큰 활성화 신호가 나타났고, 언어과제에서는 2초의 SOAmin을 적용한 경우 가장 큰 활성화 신호가 나타났다. 결론 : 통계학적 자극설계를 이용한 event-related URI로 운동과 언어의 기능적 자기공명영상을 얻기 위해서는 2초 또는 3초의 짧은 SOAmin이 효과적이었다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.1722-1730
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• 2007

According to the result of recent studies, it was revealed that the error of safety-related personnel still plays a significant role in the accidents and/or incidents of a railway system. Accordingly, in order to reduce as well as prevent human errors, it is necessary to: (1) identify the root cause of accidents/incidents, and (2) conduct a research that can provide a systematic as well as an effective way to deal with the identified human errors. To this end, it is essential to suggest appropriate countermeasures based on the result of a task load analysis, which can soundly reduce a high level of the task load put on safety-related personnel. In the light of this concern, about the tasks of railway traffic signallers, a detailed task analysis was conducted in this study. After that, the associated task load scores were quantified by NASA-TLX technique that is one of the most well-known subjective workload measurement techniques. As a result, a set of significant tasks that could put a high task load on railway traffic signallers was identified.

• 경영과정보연구
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• 제19권
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• pp.171-197
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• 2006

The purpose of this study is to analyze how the task group functioning and need styles have influence on role conflict and role ambiguity as the employee's personality engaged in the service industry such as a hotel. This study uses the hierarchical regression analysis method. Data were collected by the survey method from employees engaged in the service industry such as a hotel located Seoul, the Province of Gyeonggi, and the Province of Gangwon. The study result shows that to the employees in the type A and type X styles, the task group functioning and need styles are not significantly related to the role conflict. But to the employees in the type B style, the task group functioning and need styles are significantly related to the role conflict. And the result shows that to the employees in the type B style, the lower the faith in peers and management, the more the role conflict occur. On the other hand, the study result shows that to the employees in the type A styles, the task group functioning is significantly related to the role ambiguity. And to the employees in the type B style, the higher the faith in peers and management, the more the role ambiguity occur. On the contrary, to the employees in the type X style, need styles are significantly related to the role ambiguity. But to the employees in the type X style, the higher the need for achievement, the more the role ambiguity occur. On the other hand, the study result shows that to the employees in the type B styles, the task group functioning and need styles are significantly related to the role ambiguity. And to the employees in the type B style, the higher the need for achievement, the more the role ambiguity occur or the lower the confidence in peers and management, the more the role ambiguity occur. Although this study provides several managerial implications, this study has some limitations. Specifically data were collected from only the hotel industry in Seoul, the Province of Gyeonggi, and the Province of Gangwon. In spite of the limitations, the study results could be used valuably in case of the personnel managers which manage the employees under the conflict situations.

• 한국전문물리치료학회지
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• 제23권2호
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• pp.1-10
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• 2016

Background: Many studies regarding task-oriented training have recently demonstrated functional improvement in patients with post-stroke hemiparesis. The task-oriented approach is very diverse, and chronic stroke patients must have access to a sustained systematic treatment program to enhance their walking ability. Objectives: This study aimed to compare the effects of the task-oriented circuit training and treadmill training on walking function and quality of life in patients with chronic stroke. Methods: Fourteen patients with chronic stroke volunteered for this study. The subjects were randomly divided into a task-oriented circuit training group and a treadmill training group with 7 patients in each. Each training regimen was performed for 30 min a day and 3 days a week for 4 weeks. Assessment tools included the Timed Up-and-Go Test (TUGT), 10-m Walk Test, 6-min Walk Test (6MWT), and the Stroke Impact Scale (SIS). Results: The change in results of the TUGT, 6MWT, and SIS measured prior to and following the training regimens appeared to be significantly different between the two groups (p<.05). In addition, after the intervention, significant differences were found for all parameters in the task-oriented circuit training group and for the TUGT, 6MWT, and SIS in the treadmill training group (p<.05). Conclusion: The findings suggest that task-related circuit training and treadmill training may be helpful to improve walking function and quality of life of patients with post-stroke hemiparesis. Additionally, a task-related circuit training program may achieve more favorable outcomes than a treadmill program.

• 대한의용생체공학회:의공학회지
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• 제29권1호
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• pp.73-81
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• 2008

The purpose of this study is to observe the brain activity patterns during visual oddball tasks with two difficulty levels by the analysis of high-density event-related potential (ERP). Along with conventional statistical analysis of averaged ERP waveforms, we applied independent component analysis (ICA) for the individual, single-trial analysis and verified its effectiveness. We could identify multiple ERP components such as early visual components (P1, N1), and two components which seem to be important task-related components and showed difficulty-dependent variability (P2, P300). The P2 was found around central region at $180{\sim}220ms$, and the P300 was found globally at $300{\sim}500ms$ poststimulus. As the task became difficult, the P2 amplitude increased, and the P300 amplitude decreased. After single-trial ERPs were decomposed into multiple independent components (ICs), several ICs resulting from P2 and P300 sources were identified. These ICs were projected onto scalp electrodes and the projected ICs were statistically compared according to two task difficulties. For most subjects, the results obtained from single-trial/individual analysis using ICA gave the tendencies of amplitude change that are similar to the averaged ERP analysis for most subjects. The temporal pattern and number of ICs corresponding to ${\mu}$ rhythm was not dependent on the task difficulty. It seems that the motor response was not affected by the task difficulty.

• 한국초등과학교육학회지:초등과학교육
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• 제26권2호
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• pp.141-148
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• 2007

This study proposed task-based teaming strategies as a means of fulfilling the demands and goals of the 7th national science curriculum. Task-based learning is based on the use of a series of activities whereby a teacher presents students with tasks related to daily lift and the students solve the tasks by themselves using various methods and thought processes and then present and discuss their results with each other. The tasks are selected from the 6-grade science textbook, are reconstructed and are then given to the classes. The tasks include whole class activities as well as individual activities related to the interests, abilities, and concerns of the students. The purpose of this study was to verify the effects of task-based learning classes on the science process skills and the scientific attitudes of elementary school students, when applied to 6th grade students. For this, the task-based learning activities were applied to an experimental group and expository teaching was applied to the comparison group. Both groups were given a pre-post test on science process skills and scientific attitudes. The results indicate that task-based loaming is very effective in the development of science process skills and scientific attitudes.