• 인터넷정보학회논문지
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• 제24권4호
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• pp.47-56
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• 2023

This paper presents an approach to exercise that utilizes motion capture through the Rokoko Smart Suit. With the emergence of Covid-19, physical fitness levels have declined due to restrictions on in-person fitness classes and gym closures. To maintain physical activity, many individuals have turned to mobile applications and streaming videos. However, home workouts often lack the motivation and experience found in gyms, classes, or community centers, particularly with the presence of coaches and instructors. Additionally, instructors find it challenging to convey precise postures to their online students, and vice versa. To address this issue, the researchers propose the use of a full-body tracking suit like the Rokoko Smart Suit, which enables instructors to present a more realistic approach to physical activity. The Rokoko Smart Suit offers a 3D view of the instructor, eliminating the limitations of camera scope when streaming on platforms like Zoom or MS Teams. This technology enhances the at-home workout experience, and the incorporation of 3D virtual reality features can further elevate the realism of a workout.

• Physical Therapy Rehabilitation Science
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• 제11권4호
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• pp.553-564
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• 2022

Objective: The purpose of this studyaimed to investigate the effects of scapular stabilization training using the different exercise prop for impingement syndrome of factory workers. Design: A randomized controlled trial Methods: Twenty shoulder impingement syndrome subjects were randomly divided into two groups of ten subjects each. Inclusion criteria was presence of positive sign in at least two of Neer test, Hawkins test, Yocum test, Jobe test and Speeds test. Andexclusion criteria, those with surgical history of rotator cuff, those with disease in upper limb other than shoulder impingement syndrome, those who took anti-inflammatory drugs over the past 12 months were excluded from the sample. One group was performed scapula stabilization exercise using elastic bands, while dumbbell group performed the exercise using dumbbell. Both groups performed the exercise after applying the general physical therapy. After applying five days a week for a total of six weeks, range of motion of shoulder joint, muscle strength and pain and function level were evaluated. Results: After the intervention, in both groups, all dependent variables at the 6-week post-test significantly improved compared with the pre-test (p<0.05). In addition, elastic band exercise group showed a significant differences in SPADI function score and SPADI total score compared to the dumbbell group(p<0.05). Conclusions: The elastic band training may be effective methodology using low-to-moderate intensity resistance for SPADI scores.

• Journal of Trauma and Injury
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• 제35권3호
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• pp.202-208
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• 2022

Purpose: There is limited research on the effects of neuropathic pain (NP) on quality of life, depression levels, and sleep quality in patients with combat-related extremity injuries. This study evaluated whether patients with combat-related extremity injuries with and without NP had differences in quality of life, sleep quality, and depression levels. Methods: A total of 98 patients with combat-related extremity injuries, 52 with NP and 46 without, were included in this cross-sectional study. The presence of NP was determined using the Leeds Assessment of Neuropathic Symptoms and Signs questionnaire. The outcome measures were a visual analogue scale (VAS), the 36-Item Short Form Survey, the Beck Depression Inventory, and the Pittsburgh Sleep Quality Index (PSQI). Results: The VAS subparameter scores for pain (all P<0.05), PSQI sleep dur ation subscale scores (P=0.025), PSQI sleep disturbance subscale scores (P=0.016), and PSQI total scores (P=0.020) were significantly higher in patients with NP than those without. Logistic regression analysis showed that VAS scores of 5 and above for average pain during the previous 4 weeks contributed independently to the prediction of NP. Conclusions: Patients with combat-related extremity injuries with NP had more pain and poorer sleep quality than those without NP. Sleep quality should be evaluated as part of the diagnostic work-up in patients with combat-related extremity injury with NP, and interventions to improve sleep quality may help manage NP in this patient group.

• 공업화학
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• 제19권1호
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• pp.92-97
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• 2008

$MnO_2$와 K 또는 Cu 담지 활성탄으로 이루어진 혼성촉매상에서 암모니아를 환원제로 사용한 NO의 저온 선택적 촉매 환원반응을 수행하였다. 반응물에 산소를 투입한 경우 NO의 제거율은 증가하였으며, 활성탄에 전이금속을 담지할 경우 탈질 효율이 증가한다. 수분이 존재하지 않는 경우 $MnO_2$와 K 담지 활성탄으로 이루어진 혼성촉매가 $120^{\circ}C$의 저온에서 가장 높은 탈질 효율을 보였으나, 수분이 존재할 경우 모든 촉매의 활성은 현저하게 떨어졌다. 수분 존재 시 $MnO_2$와 질산처리/열처리를 한 Cu 담지 활성탄을 물리적으로 1 : 1 (w/w) 비율로 혼합한 촉매가 $MnO_2$와 Cu 담지 활성탄을 단독으로 사용한 것에 비해 탈질효율이 더 우수하였다.

• Environmental Engineering Research
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• 제25권4호
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• pp.579-587
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• 2020

Novel silane grafted bentonite was obtained using the natural bentonite as precursor material. The material which is termed as nanocomposite was characterized by the Fourier Transform Infra-red (FT-IR) and X-ray diffraction (XRD) methods. The surface imaging and elemental mapping was performed using Scanning Electron Microscopic (SEM/EDX) technique. The electroanalytical studies were performed using the nanocomposite electrode. The electroactive surface area of nanocomposite electrode was significantly increased than the pristine bentonite or bare carbon paste based working electrode. The impedance spectroscopic studies were conducted to simulate the equivalent circuit and Nyquist plots were drawn for the carbon paste electrode and nanocomposite electrodes. A single step oxidation/reduction process occurred for As(III) having ΔE value 0.36 V at pH 2.0. The anodic stripping voltammetry was performed for concentration dependence studies of As(III) (0.5 to 20.0 ㎍/L) and reasonably a good linear relationship was obtained. The detection limit of the As(III) detection was calculated as 0.00360±0.00002 ㎍/L having with observed relative standard deviations (RSD) less than 4%. The presence of several cations and anions has not affected the detection of As(III) however, the presence of Cu(II) and Mn(II) affected the detection of As(III). The selectivity of As(III) was achieved using the Tlawng river water sample spiked with As(III).

• The Journal of Korean Physical Therapy
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• 제24권2호
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• pp.151-156
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• 2012

Purpose: The purpose of this study was to investigate the adverse effects of sensorimotor function at the shoulder joint according to long-term cane usage in stroke patients without apraxic behavior, in terms of the presence of shoulder joint pain, accuracy of tracking task, proprioceptive joint position sense, and nine-hole pegboard. Methods: Nineteen stroke patients with long-term cane usage (cane usage group) and nineteen stroke patients without cane usage (non-cane usage group) were recruited. All subjects were tested in pain presence, a tracking task for visuomotor function, joint reposition, and nine-hole pegboard in the shoulder joint regarding the non-affected side. Results: In the accuracy index for tracking task and the nine-hole pegboard test, significant differences were observed between the cane usage group and the non-cane usage group. However, although a higher emergence of shoulder pain and a lower accuracy for joint reposition sense were detected in the cane usage group in comparison to the non-cane usage group, there were no significant differences between the two groups. Conclusion: Our findings suggest that long-term cane usage could induce to decrease in delicate movement and coordination in the non-affected upper arm in stroke patients. In addition, they could experience high frequency of shoulder pain and poor joint reposition sense. Therefore, careful evaluation and observation will be required concerning stroke patients with long-term cane usage.

• 한국전문물리치료학회지
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• 제28권1호
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• pp.59-64
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• 2021

Background: Hip flexor muscles are very important in the hip joint structure as a mover and stabilizer. In addition, isometric hip flexor strength in the supine position needs to be considered with isometric core strength (WICS) to measure a precise strength in a clinical way. Objects: We compared isometric hip flexor strength in the supine position in subjects with and without WICS (between factors) and conditions with and without an external support (within factors). Methods: A total of 34 subjects (16 with WICS, 18 without WICS) participated in this study. We used the double-bent leg-lowering test to divide the subjects in two groups according to the presence of WICS. Isometric hip flexor strength was evaluated in the supine position both with and without an external support condition. The two-way mixed analysis of variance was applied to identify significant differences between groups (with vs. without WICS: between factors) and conditions (with vs. without an external support: within factors). Statistical significance was set at α = 0.05. Results: In subjects with WICS, isometric hip flexor strength was greater with an external support than without it (p = 0.0064). In subjects without WICS, there were no significant differences in isometric hip flexor strength in the presence or absence of an external support (p = 0.075). The isometric hip flexor strength was significantly greater with an external support condition in particular in subjects with WICS. Conclusion: The findings of this study reported that an external support condition in individuals with WICS may contribute to the improvement of isometric hip flexion strength in the supine position. Therefore, isometric core strength should be evaluated to distinguish the weakness between core region and hip flexors.

• 한국엔터테인먼트산업학회논문지
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• 제14권3호
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• pp.307-322
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• 2020

강량원 연출의 공연들에서는 배우들의 신체행동연기는 대부분 단순하고 반복적이다. 이러한 연기는 관객의 감각적 지각을 유도하면서 관객에게 특정한 육체적 감정을 갖게 하는 효과를 거둔다. 대사가 주는 기호적 의미에 더해서 관객의 감각에 직접적으로 자극을 줌으로써 관객은 무대공간에서 만들어지는 분위기에 힘입어 수행적 공간의 조성에 동참하게 되며, 따라서 자동형성적 피드백-고리가 만들어지고, 의식된 지각의 도움으로 의미의 창발을 경험하게 된다. 창발적 의미는 상상, 회상, 연상 등에 의해서 불쑥 솟아오르는 것이며, 이는 결코 의도적으로 생산된 것이 아니다. 그리고 관객은 재현적 지각과 현존적 지각의 교차에 힘입어 공연에 함께 동참하는 가운데, 특히 신체행동연기의 현존성의 영향을 받게 된다. 본고에서는 2010년대 이후에 공연된 극단 동의 주요 공연 네 편에 대한 연구를 통해서 각각의 공연이 가진 개별성뿐 아니라 전체 공연을 아우르는 공통성 역시 확인하였다. 이로써 강량원과 극단 동의 연극미학이 가진 변별력을 발견하게 되었다.

• 대한치과기공학회지
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• 제33권4호
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• pp.453-466
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• 2011

Purpose: This study aims to investigate the general characteristics of dental technicians and their health behaviors and to analyze the related factors of their work stress and physical symptoms. Methods: The survey used structured self administered questionnaires for a survey targeting 741 members registered of the Dental Technician Association in Daegu Metropolitan City from September to October, 2009. Total of 518 replies and analyzed 490 questionnaire excluding 28 incomplete questionnaires. Results: The work stresses were higher in those who answered that they were under 30-years old, unmarried, lower in rank, or had longer work hours, lower monthly incomes or poor self-perceived health status. In addition, those who worked in a dental laboratory with poor work environment including insufficient ventilation, sand blaster with no powder collecting functions, etc., tended to experience higher work stress than others due to their work conditions. The total average of the respondents of the survey who answered that they suffered from some physical symptoms was 14.7 points. It was found that the factors affecting the score of physical symptoms include occupational features such as work hours, monthly income, etc., and physical work environment such as the presence or absence of ventilator, of dust-collectors within sand blaster, etc., and work stress, exerted significant influence. Conclusion: The outcomes of this study indicates that to lessen work stress and to ultimately alleviate physical symptoms, it is necessary to do the following: improve work environment of young unmarried women; adjust their daily working hours; ameliorate physical work environment. To improve overall physical symptoms, it is importance to establish a safe and healthy working environment.

• 의학교육논단
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• 제24권1호
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• pp.56-62
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• 2022

Despite current regulations requiring social distancing due to coronavirus disease 2019, problem-based learning (PBL) requires student interaction to achieve common goals and enhance critical thinking and deep learning abilities. Social presence in the online education environment reduces both perceptions of physical distance and psychological distance in interactions. This study aimed to compare PBL activities between in-person and videoconferencing classes, and to investigate social presence and learning satisfaction in a videoconferencing PBL environment. The PBL consisted of six modules for both the first and second years of Chonnam National University Medical School. As social distancing was strengthened, the second class of the fifth module in both years was converted to an online format and the fifth module was excluded. The first four PBL modules were conducted as in-person classes, but the last PBL module was administered via videoconferencing. After the final PBL module, 100 (81.3%) first-year medical students and 90 (79.6%) second-year students were asked to complete a self-administered questionnaire on social presence and learning satisfaction. There were no significant differences in the small group activities of tutorial sessions between in-person and videoconferencing classes. In the online videoconferencing class, students who had favorable attitudes toward the tutors' social role and interactions with peers showed high satisfaction with their learning. In conclusion, online videoconferencing allows students to simultaneously perceive their interactions with others and social presence, even at a distance. Tutors can enhance a sense of online community and collaborative learning as facilitators of online PBL.