• Journal of Korean Physical Therapy Science
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• v.28 no.3
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• pp.53-65
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• 2021

Background: The purpose of this study was to a comparison of physical fitness according to the body mass index (BMI) of Chinese college students. Design: Cross-sectional study. Methods: According to the BMI, the research objects are divided into four types: underweight, normal weight, overweight, and obesity. This research took 26,976 college students who participated in Jiujiang College. It examines BMI, 50m, vital capacity, standing long jump, sitting forward bend, sit-up (female), pull-up (male), 800m (female), 1000m (male) which is to research the correlation between different BMI and other indicators. Results: The physical qualities of students with normal weight are significantly better than those with other BMI groups. Pearson correlation analysis showed that male BMI was positively correlated with vital capacity (r=0.07, p<0.01), 50m (r=0.15, p<0.01) and 1000m (r=0.14, p<0.01), and negatively correlated with standing long jump (r=-0.12, p<0.01), sitting forward bend (r=-0.06, p<0.01) and pull-up (r=-0.13, p<0.01); Female BMI was positively correlated with vital capacity (r=0.03, p<0.01), 50m (r=0.21, p<0.01) and 800m (r=0.18, p<0.01), and negatively correlated with standing long jump (r=-0.07, p<0.01), sitting forward bend (r=-0.11, p<0.01) and sit-up (r=-0.10, p<0.01). Conclusion: Overweight and underweight will affect the physical quality of college students. Students should keep their BMI within the normal range for their health.

• Journal of the Korean Society of Clothing and Textiles
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• v.12 no.1 s.26
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• pp.13-26
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• 1988

As the culture develops, the body of children nowadays improves, but their physical fitness is weaker than that of children in the past. If physical fitness strengthens through clothing, this must be the easiest and the most efficient long-range training method. To find out the solutions on the above mentioned problems through clothing, this study was made for the analysis of the correlations of clothing weight and physical fitness. The children's endurance upon cold can be explained by the physical fitness, and has relation with the clothing insulation. Therefore, motor ability was measured as an index of physical fitness and clothing weight was measured as an index of insulation. This observation was made in Spring and Fall, 1985, in which 339 kindergartners and their mothers were the subject. The results of the study were as follows: Physical fitness of children decreased in proportion to the clothing weight, and especially this can be seen in boys rather than in girls, and in Fall rather than in Spring. In case of the children who spent more time outdoors rather than indoors, who played in larger space, and who didn't have meat frequently, it turned out that their clothing weight was surprisingly lessened and their physical fitness was highly food.

• Journal of the Korean Society of Physical Medicine
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• v.5 no.1
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• pp.35-42
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• 2010

Purpose : This study investigated to find the therapeutical effects of functional weight bearing exercise on the balance and gait in stroke. Methods : The subjects of this study were 13 hemiplegia was exercised using functional weight support exercise for 5 weeks, all of whom agreed to participate in the study. All subjects were measured to see their balance and gait with a Pro-3 balance system and Gait analysis. In order to assure the statistical significance of the results, we used for SPSS 12.0 for windows. Results : The results of this study were as follows : 1) There were statistically significant difference in medial-lateral stability and overall stability index. 2) There were statistically significant in distance and gait velocity index. Conclusion : According the results of this study, functional weight bearing exercise is effect on the balance and gait for hemiplegia.

• Physical Therapy Korea
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• v.13 no.1
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• pp.47-53
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• 2006

Since ultrasound has different reflections depending on components of organization, analysis of ultrasound images of skeletal muscle can offer both quantitative and qualitative reports as concerns skeletal muscle structure. This study is focused on the ultrasound method for evaluating the structural characteristics of skeletal muscle and also conducted to examine its practicality. After obtaining images of the elbow flexors from an ultrasound image device with 88 normal subjects whose ages were between twenty and seventy years old (44 men and 44 women), muscular density and white area index (WAI) which indicated structural characteristics of skeletal muscle were analyzed with gray scale analysis. The study examined correlations between subject's age and items which obtained from measuring ultrasound images and the differences in relations to sex and age. Muscular density and WAI had a high correlation with age and were significantly increased in men and women with greater age. The quantitative evaluation method of skeletal muscle structure which analyzed the ultrasound images has high practicality because it is a non-invasive method which complements physical therapy diagnosis and research methods and promotes functionality evaluation.

• Physical Therapy Korea
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• v.28 no.3
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• pp.177-185
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• 2021

Background: Muscle undergoes change continuously with aging. Sarcopenia, in which muscle mass decrease with aging, is associated with various diseases, the risk of falling, and the deterioration of quality of life. Obesity and sarcopenia also have a synergy effect on the disease of the older adults. Objects: This study examined the risk factors for sarcopenia, sarcopenic obesity, and sarcopenia without obesity and developed prediction models. Methods: This machine-learning study used the 2008-2011 Korea National Health and Nutrition Examination Surveys in the analysis. After data curation, 5,563 older participants were selected, of whom 1,169 had sarcopenia, 538 had sarcopenic obesity, and 631 had sarcopenia without obesity; the remaining 4,394 were normal. Decision tree and random forest models were used to identify risk factors. Results: The risk factors for sarcopenia chosen by both methods were body mass index (BMI) and duration of moderate physical activity; those for sarcopenic obesity were sex, BMI, and duration of moderate physical activity; and those for sarcopenia without obesity were BMI and sex. The areas under the receiver operating characteristic curves of all prediction models exceeded 0.75. BMI could predict sarcopenia-related disease. Conclusion: Risk factors for sarcopenia-related diseases should be identified and programs for sarcopenia-related disease prevention should be developed. Data-mining research using population data should be conducted to enhance the effectiveness of early treatment for people with sarcopenia-related diseases through predictive models.

• Journal of the Korean Society of Physical Medicine
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• v.19 no.1
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• pp.107-117
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• 2024

PURPOSE: This study examined the effects of the myofascial release and cervical traction after applying conservative physical therapy to patients chronic neck pain. METHODS: Patients were randomly divided into two groups, namely myofascial release (7 subjects) and cervical traction (7 subjects). Each group performed their therapy 45 minutes per day, two times a week, for four weeks. Pain intensity was measured using the visual analog scale (VAS). Function was measured with the neck disability index (NDI). The cervical range of motion (CROM) was measured with a cervical range of motion (CROM) goniometer. RESULTS: After four weeks of therapy, the VAS (p < .05) and NDI (p < .05) significantly decreased, and ROM significantly increased in both groups (p < .05). There were also significant differences between the two groups for these three measures, except for neck flexion and neck extension(p<.05). CONCLUSION: Myofascial release and cervical traction are more effective than cervical traction alone for reducing VAS and NDI and increasing ROM in patients with chronic neck pain.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.11
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• pp.543-553
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• 2020

This study analyzed secondary data using the results of the 7th Korea National Health and Nutrition Survey in 2018. The aim of this study was to identify and compare the effects of physical activity, body mass index, and depression on the health-related quality of life of elderly women. Specifically, the sample consisted of 550 women with hypertension and 375 women without hypertension. The data were analyzed using descriptive statistics, chi-square test, t-test, and multiple linear regression with the IBM SPSS/WIN 22.0 program. Multiple linear regression analysis showed that age, education, physical activity, body mass index, and depression accounted for 26.9% of the health-related quality of life (HRQOL) in the hypertension group (F=14.30, p<.001), followed by physical activity (t=3.02, p=.003), body mass index (t=-3.12, p=.002), and depression (t=-7.69, p<.001). Education and depression accounted for 31.7% of the QoL in the non-hypertension group (F=4.42, p<.001), followed by depression (t=-5.53, p<.001). Based on these results, a physical activity intervention program will be needed to reduce depression and obesity in older women. Moreover, further research comparing the characteristics of other specific physical activities in elderly women with hypertension is recommended.

• Journal of Preventive Medicine and Public Health
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• v.22 no.3 s.27
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• pp.355-367
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• 1989

This study examined the physical and mental health factors affecting the industrial accidents of 142 injured and 1,212 uninjured workers in the shipbuilding industry from 1986 to 1988. The results acquired from the Todai Health Index (THI) and from analysis of the health examination were as follows: 1. Among the personal characteristics of the workers, the educational level of injured workers was significantly lower than that of the uninjured workers. 2. Among the physical characteristics, vision and $R\ddot{o}hrer$ Index of the injured workers were lower than those of the uninjured workers, and the difference was statistically significant. On the other hand, the differences in height, weight, hearing function, hematocrit, blood pressure, urine test, and X-ray findings were not statistically significant between the injured and uninjured workers. 3. The score of the THI questionnaire on the physical and mental health of the injured workers was higher than that of the uninjured workers, and the difference was statistically significant. 4. Form the THI score, the industrial workers had complained more about mental health than physical health and there was a statistically singinficant relation with the industrial accidents. 5. The relative risk expressed in terms of the odds ratio was 2.9 for poorer vision, 2.7 for a lower educational level, 2.2 for a higher THI score and 1.6 for overdrinking. 6 Educational level, vision, and the THI score were selected as significant factors influencing industrial accidents based on a log-linear model. According to the results of this model by logistic analysis, the odds ratio of industrial accidents was 1.8 for a lower educational level, 1.7 for poorer vision, and 1.6 for a higher THI score. 7 By event history analysis with the dependent variable as the duration of work at the time of the industrial accident, educational level, age, $R\ddot{o}hrer$ Index and THI score were the statistically significant variables selected, and the hazard rate of industrial accident occurrence was 0.24 for a lower educational level, 0.92 for age, 0.99 for a lower $R\ddot{o}hrer$ Index and 2.72 for a higher THI score. As we have seen, educational level and THI score were the most significant factors affecting the hazard rate of industrial accidents. Vision, $R\ddot{o}hrer$ Index, age, and drinking behavior were also statistically significant variables influencing industrial accidents. Therefore, in order to prevent industrial accidents, it is necessary to establish a health management plan for industry which can objectively evaluate not only the physical but also the mental health of the workers. If we use this type of study as a prospective study design, we can determine the relative risk of physical and mental health factors on industrial accidents. Furthermore, it is expected that this type of study will provide workers at high risk with more precise basic data for a health managment plan for industrial accident prevention.

• Journal of the Korean Society of Industry Convergence
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• v.6 no.4
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• pp.315-324
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• 2003

The purpose of this is to evaluate Hakui Stream Naturalness Index(S.N.I). and to find out stats, problems and opportunities of the Hakui stream by assessment standard. Assessment standard is mainly based on physical structure of stream environment. The purpose evaluating sectors and elements are physical form and structure restoration of stream. To find out assessment standard of stream naturalness index, conceptual frame of assessment standard has been established, for which four sections, for example, longitudinal section, lateral section, stream bottom structure and water environment, have been selected. Overall stream naturalness index of the Hakui stream has been distributed at 3rd to 4th grade, and its assessment index accounted for 3.2 to be 3rd grade, and its mode also did 3rd grade. Stream naturalness index of each section was as follows: Longitudinal section index accounted for 3.6 in average to be 4th grade, and later section index did 3.0 to be 3rd grade, and stream bottom structure index did 3.0 to be 3rd grade, and water environment index did 2.7 to be 3rd grade. Analysis of assessment outcome of stream naturalness index has checked status, Problems and opportunities of corresponding stream. Assessment of stream naturalness index of the study provides useful information for restoration of close-to-nature stream, and furthermore has its meaning in checking problems and opportunities of Hakui stream.

• Journal of Korean Physical Therapy Science
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• v.30 no.4
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• pp.29-43
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• 2023

Background: In the rehabilitation of stroke patients, regular physical activity is very important not only as a treatment for maximal functional recovery but also as a strategy to prevent the recurrence of stroke. The purpose of this study was to objectively measure the amount of physical activity in people with stroke, and to examine the differences in motor and cognitive function according to a level of physical activity. Design: A cross-sectional study. Methods: Physical activity (GENEActiv), motor function (Fugl-Meyer Assessment), cognitive function (Montreal Cognitive Assessment-Korean version), and the Korean version of Modified Barthel Index were evaluated in adult stroke patients with hemiplegia. Results: There was no statistically significant difference in the level of physical activity according to the motor and cognitive function. There was no statistically significant difference in motor and cognitive function according to the level of physical activity, but there was a statistically significant difference in the MBI (p<.01). Conclusion: As a result of the difference in the MBI according to the level of physical activity, it was found that the more moderate to vigorous physical activities are performed, the higher the independence in daily living. These results can be interpreted as that the more often you participate in physical activities such as physical therapy (gait training), the better your independence in ADL. Since regular physical activity participation of adult stroke patients can improve daily living performance, it is considered necessary to participate in physical activities such as continuous physical therapy.