• Journal of Korean Physical Therapy Science
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• v.24 no.2
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• pp.27-35
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• 2017

Purpose: This study aimed to investigate the effect of shoes sole form on fatigue of lower extremity during treadmill gait. Method: Thirty healthy young adults (15 males and 15 females) were recruited. They performed treadmill gait in two different conditions: double sole(DS) and flat sole(FS). Result: lower extremity fatigue were signficantly decreased in double sole condition(p<.05). Conclusion: These findings suggest that double sole contributes to reduction of lower extremity muscle fatigue.

• Nuclear Engineering and Technology
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• v.50 no.8
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• pp.1421-1425
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• 2018

The dynamics of gas release at thermal oxidation of extraction systems on the basis of diamides of dicarbonic acids in fluorinated sulphones with 14 mol/L $HNO_3$ was investigated. The effect of preirradiation of the mixtures with accelerated electrons on the kinetics of their thermolysis was determined. The mixtures were heated in an autoclave at temperatures of 170 and $200^{\circ}C$ and irradiated using an electron accelerator to absorbed doses of 0.1, 0.5, and 1.0 MGy. It has been shown that no conditions for autocatalytic oxidation at thermolysis of extraction mixtures irradiated up to a dose of 1 MGy were developed.

• Korean Journal of Occupational Health Nursing
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• v.32 no.4
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• pp.141-151
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• 2023

Purpose: This study explored caregivers' support needs to relieve their physical burden while working in long-term care facilities. Methods: Participants were 12 caregivers with more than 10 years of experience working at six long-term care facilities in Gwangju, South Korea. Data were collected through individual interviews conducted between June and July 2023. The results were analyzed using qualitative content analysis. Results: Of the four sub-categories and 13 codes, two categories emerged: "need for welfare medical devices" and "need for improved working conditions." Conclusion: Caregivers working in long-term care facilities require support in deploying and utilizing welfare medical devices to reduce their physical burden, along with improving staffing standards and ensuring they receive the proper amount of days off. Therefore, it is necessary to mandate the provision of a certain level of welfare medical devices to ease the physical burden on caregivers and improve the standards for the placement of caregivers in long-term care facilities.

• Hip & pelvis
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• v.35 no.1
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• pp.1-5
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• 2023

Piriformis syndrome is a common differential diagnosis related to sciatica. The following review provides a concise synopsis of the diagnosis, management, history, and alternatives to diagnosis of piriformis syndrome. A search of the literature for research articles related to piriformis syndrome and associated differential diagnosis of sciatica was conducted. A thorough review of the included articles found that the condition known as piriformis syndrome is over-diagnosed and that potential anatomic and biomechanical variations originating in the pelvic region might be related to the complaint of sciatica. The criteria for diagnosis are based on findings from both physical examination and radio imaging. Piriformis syndrome resembles a variety of clinical conditions; therefore, conduct of future studies should include development of a validated method for evaluation as well as clinical criteria for diagnosis of piriformis syndrome.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.22 no.52
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• pp.241-246
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• 1999

In this study, to specify an evaluation of human sensibility, the types of color, intensity of illuminations and lights consisting work environmental condition are decided, and image data from examining the change of human sensibility followed by changes of the above three conditions are obtained. Using the factor analysis and quantification theory in multi-variate analysis type of Sensibility Ergonomics, determinating the structure of factors, specifying the relations of environmental conditions and factors can be done so that the structure of image on human sensibility space with the change of environmental conditions is analyzed.

• Journal of Korean Physical Therapy Science
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• v.25 no.3
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• pp.53-60
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• 2018

Purpose : The purpose of this study is to examine the Effect of Lunge Exercise on the Balance of Stable and Unstable Supporting surface. Method : The experimenter was a healthy twenties male and female. The period was two weeks, divided into a stable group and a unstable group. Setting the holding time 4 sec 3 sets of 10 times using the Stable and Unstable Supporting Surfaces. The break time was set at one minute for each set. Balance cushions were used for unstable supporting surfaces. Results : After Lunge Exercise, Both groups had an impact on improving their ability to balance. Conclusion : There has not been much change in the ability to balance the stable and Unstable Supporting Surfaces. However, considering surface conditions, the pre and post exercise comparisons had an effect on improving the ability to balance.

• Korean Journal of Exercise Nutrition
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• v.23 no.4
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• pp.36-42
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• 2019

[Purpose] The study aimed to determine the effects of bone-specific physical activity on body composition, bone mineral density (BMD), and health-related physical fitness in middle-aged women. [Methods] One hundred eighty-six middle-aged women aged 31-49 years participated in this study. The subjects were divided into tertile groups according to the level of physical activity (low-score group, n=62; middle-score group, n=62; high-score group, n=62). Bone-specific physical activity participation was assessed using the bone-specific physical activity questionnaire. Body composition and BMD were measured using dual-energy X-ray absorptiometry. Health-related physical fitness test included isometric muscle strength (grip strength), muscular endurance (sit-ups), flexibility (sit and reach), and cardiorespiratory fitness (maximal oxygen uptake [VO_2max]). [Results] The high-score group had a significantly higher fat-free mass (p=.045, partial eta-squared value[η_p²]=.033) than the middle- and low-score groups, whereas the high-score group had significantly lower percent body fat (p=.005, η_p²=.056) than the other two groups. Whole-body BMD (p=.034, η_p²=.036) and lumbar BMD (p=.003, η_p²=.060) were significantly higher in the high-score group than in the low-score group. The high-score group performed significantly better for grip strength (p=.0001, η_p²=.101), sit-ups (p=.0001, η_p²=.108), and VO_2max (p=.0001, η_p²=.092) than the other two groups. [Conclusion] The present study suggests that bone-specific physical activity could be useful in improving body composition, BMD, and health-related physical fitness in middle-aged women, significantly enhancing their BMD and health conditions.

• The Journal of Korean Physical Therapy
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• v.24 no.3
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• pp.235-239
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• 2012

Purpose: To recognize the change in the proprioception under conditions that activate the local muscles, this study found the difference in the proprioception on a fixed and swing chair. Methods: Healthy adults (7 males, 13 females) in their twenties were evaluated lumbar position sense on fixed and swing chair. And the difference of the position sense between the fixed and swing chair were analyzed. Results: The joint position senses were compared between the fixed and swing chair. As a result, there was a significant difference from all motions. Conclusion: This study found that the improvement of proprioception using swing chair means that the local muscle is activated. Therefore, to use a swing chair, which was designed in this study, is able to replace the general chair either at work or during studies. Thus, this method is easily accessible for busy modern people who are exposed to low back pain or spinal disorders due to a pattern of inactivity.

• Culinary science and hospitality research
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• v.13 no.4
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• pp.256-268
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• 2007

This research examines how various dimensions of physical environments influence employees' emotional responses in restaurants, and how these emotional responses, in turn, influence employees' group cohesiveness. The result of empirical research indicates that restaurant physical environments have a significant effect on employees' emotional responses, and that these psychological experiences serve as critical mediators in the physical environment-group cohesiveness relationship in restaurants. However, the effects of physical environ-ments of restaurants on employees' psychological responses varied with the dimensions of physical environ-ments. First, the effect of spatial layout and functionality on pleasure and dominance was significant, not on arousal. Second, ambient factors influence on all dimensions of emotional responses, including the arousal level. In turn, all dimensions of emotional responses have significant effects on employees' group cohesive-ness. Therefore, the result suggests that restaurants should manage(or, improve) their physical environment conditions for inducing employees' positive emotional responses.

• Physical Therapy Rehabilitation Science
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• v.11 no.1
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• pp.105-112
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• 2022

Objective: Nonspecific low back pain (NS-LBP) causes pain and disability, affecting the neuromuscular system and altering gait patterns. The purpose of this study is to investigate the effect of improvement of low back pain symptoms through physical therapy on foot pressure and spatiotemporal gait parameters. Design: A pilot study. Methods: Participants received manual therapy and supervised therapeutic exercise, which consisted of 12 sessions for 6 weeks. Participants were assessed for pain intensity (a numeric pain rating scale), disability index (oswestry disability index), and spatiotemporal gait parameters before and after intervention. Wilcoxon signed rank test was used to analyze the before-and-after differences in a single group. Results: All seven NS-LBP patients completed the study without dropout. After six weeks of physical therapy, the numeric pain rating scale and oswestry disability index showed significant improvement (Z= -2.388, P=0.017). There was no significant improvement in both static and dynamic conditions in foot pressure (P>0.05). However, in the spatiotemporal gait parameters, there were significant differences in all variables except the right stance phase and left mid stance (P<0.05). Conclusions: In our pilot study, 12 sessions of physical therapy in NS-LBP patients improved gait quilty in spatiotemporal gait parameters. Similarly, it has resulted in clinically positive improvements in pain and disability.