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        Cardiopulmonary Response to Robot-Assisted Tilt Table With Regard to Its Components

        Kim Myeong Sun,Kim Ha Yeon,Park Gyulee,Kim Tae-Lim,Shin Joon-Ho 대한뇌신경재활학회 2023 뇌신경재활 Vol.16 No.1

        Cardiopulmonar y function is exceptionally critical during the early stages of rehabilitation after neurological disorders such as stroke, spinal cord injur y and Parkinson’s disease. This study aimed to demonstrate how robot-assisted and tilt table exercises affect cardiopulmonar y function. In this study, ten healthy young adults performed six combinations of conditions according to robot-assisted mode (on/off ), angle of tilt table (20°/60°), and functional electrical stimulation (FES) mode (on/off ). Four conditions had FES mode off with combinations of robot-assisted mode (on/off ) and tilt angle (20°/60°) and two conditions had robot-assisted mode and FES on with tilt angle (20°/60°). Cardiopulmonar y effects (oxygen uptake [VO2], peak oxygen uptake [VO2peak], metabolic energy cost [MET], rate pressure product [RPP], heart rate [HR], maximum heart rate [%HRmax], and minute ventilation [VE]) were compared in each condition. As a result, in the angle and FES mode effect, VO2, VO2peak, MET, RPP, HR, and %HRmax, unlike that for VE, showed major effects in angle. In addition, in the robot-assisted mode and angle effect, when the FES was switched off, VO2, METs, and VE values showed major effects in the robot-assisted mode, whereas all other values showed major effects in angle. Compared to earlier reported findings, we can expect that robot- assisted tilt table training can lead to changes in the cardiopulmonar y function.

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        Decomposing Relationship between Safety Climate, Safety Perception, and Safety Behavior in Airline Industry

        Gyulee Kim 국제문화기술진흥원 2022 International Journal of Advanced Culture Technolo Vol.10 No.4

        This research aims to investigate the relationship between safety climate and safety perception and safety behavior. Safety perception of the relationship is considered to have a mediating effect. Previous literature has tended to regard safety perception as an independent variable at the same level as the safety climate, which can be said to depend on behavioralism to approach the causal relationship to an one-way perspective. The survey was administrated through full- service carries in Korea such as Korean Air and Asiana Airlines, and low-cost carriers such as JeJu air, Jin air, and Air Pusan. It can identify a mediator of safety perception between safety climate and safety behavior. There are significant indirect effects of each value, which means mediators values of safety perception of safety climate variables and safety behavior. The study highlights that airlines should focus on the importance of their psychological aspects to strengthen the safety behavior of flight attendants and the value of organizational efforts to mature safety perceptions, suggesting some implications of theoretical and practical aspects.

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        Delayed Absorption of Subretinal Fluid after Retinal Reattachment Surgery and Associated Choroidal Features

        Jong Min Kim,Eun Jung Lee,Ga Eun Cho,Kunho Bae,Ju Yeun Lee,Gyule Han,Se Woong Kang 대한안과학회 2017 Korean Journal of Ophthalmology Vol.31 No.5

        Purpose: The aim of this study was to investigate the incidence and associated clinical factors of delayed absorption of subretinal fluid (SRF) after surgery for rhegmatogenous retinal detachment. Methods: This study involved 36 eyes of 36 consecutive patients who underwent successful surgery for rhegmatogenous retinal detachment. A complete ophthalmologic evaluation, including clinical fundus examination, optical coherence tomography, and indocyanine green angiography, was conducted before and after surgery. Delayed absorption was defined as the presence of residual concave SRF or an SRF bleb at 6 months after surgery. Clinical factors and choroidal features on indocyanine green angiography were compared according to the presence and absence of delayed absorption. Results: Eighteen of 36 eyes (50%) showed delayed absorption. Macular involvement and worse preoperative visual acuity were significantly related to the presence of delayed absorption (p = 0.001 and p = 0.034, respectively). On indocyanine green angiography, preoperative choroidal vascular hyperpermeability was noted in 70% of eyes with delayed absorption and in 14% of eyes without it (p = 0.010). Conclusions: Delayed absorption of SRF after retinal reattachment surgery was not rare, with a 50% of incidence in this study. Macula-off status was significantly related to the incidence of delayed SRF absorption, and choroidal features such as choroidal vascular hyperpermeability might be responsible in part, possibly through the resultant exudative property of choroid.

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