• Transactions on Electrical and Electronic Materials
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• v.18 no.5
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• pp.298-302
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• 2017

With an increasing aging population and improved standards of living, more attention has been paid to health. Although walking exercise is known as an aerobic exercise, it imposes repeated and continuous impacts on the joints of the lower extremities. Therefore, when overweight gives a burden to the lower extremity or there is a joint disease, exercise limit occurs. The articular cartilage, weakened with age, also makes it difficult for the elderly to perform walking exercises. Accordingly, this study conducted a comparative analysis between regular walking using only the lower extremity and Nordic walking, which has been known as stable. For analysis, electromyography (EMG) was performed and the ground reaction force of the upper and lower extremities were measured in the same exercise. Integrated EMG (iEMG) revealed that the upper extremity muscles were more active in Nordic walking than in regular walking, where lower extremity muscles were relatively more inactive. In addition, when EMG measurements were performed at each measurement point during walking exercise, the pattern was different. Nevertheless, the result was the same as in iEMG. The load that occurs in each exercise was measured using the ground reaction force system. As a result, Nordic walking had a lower load than regular walking. Therefore, it was found that Nordic walking minimized the load on the lower extremities owing to the effect of whole-body exercise and was a safer and more efficient exercise method.

• Journal of Korean Physical Therapy Science
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• v.5 no.4
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• pp.795-807
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• 1998

The purpose of this study was to investigate the effects of exercise therapy to oldwomen's muscle strength, flexibility and IADL. To identify the effect of exercise therapy on oldwomen's muscle strength, flexibility and IADL, this study attempted to determine grip strength, back strength, leg strength, flexibility of upper and low(flexion, extension, abduction), flexibility of trunk(flexion, extension) and IADL, using dynamometer, goniometer and Geriatric center IADL, for 34 female. Thirty-four subjects participating in this study consisted of A group(from sixty-five to sixty-nine, eleven person), B group(from seventy to seventy-four, twelve person), C group(over seventy-five years old, eleven person). Data from the findings of this experiment were computed for and standard deviation by using repeated measurement of MINI TAB. As a result, the following conclusion was drawn : 1. Subject group showed significantly higher scores on effect of exercise between three age group after regular exercise. 2. Subject group showed significantly higher scores on muscle strength(grip strength, back strength, leg strength) and there is a difference between three age group after regular exercise of muscle strength. 3. Subject group showed significantly higher scores on flexibility (upper, lower, trunk) and there is a difference between three age group after regular exercise of flexibility. 4. Subject group showed significantly higher scores on IADL(Instrumental activities of daily living) and there is a difference between three age group after regular exercise. As a result of this study, the effect of exercise training program had improved muscle strength, ROM (range of motion) of joint, IADL. Thus exercise training program could be beneficially applied for the prevention of disability and promotion of health and wellbeing in the aged easily and safely.

• The Korean Journal of Food And Nutrition
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• v.14 no.2
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• pp.113-119
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• 2001

The purpose of this study was to compare to the effects of regular exercise on body fat contents and plasma lipid composition of college women. This study was conducted from May to August in 2000. The subjects selected for the experiment were composed sixty three female college students. The basal anthropometric measurements were performed. The levels of total cholesterol, HDL-cholesterol, triglyceride and fatty acid composition of plasma were determined. And plasma glucose concentrations was also assayed. The results obtained are summerized as follows : Average height and weight of E(exercise) group were found to be slightly higher than NE(non exercise) group. The percent of body fat and body fat mass (kg) in E group was slightly lowered than that of NE group. There was decreased on the levels of plasma total cholesterol, triglyceride by regular exercise. HDL-cholesterol level was not significantly different between two groups, but LDL-cholesterol level in E group was significantly lowered than that of NE group. Therefore, plasma total cholesterol and LDL cholesterol levels was significantly decreased by regular exercise.

• Nutrition Research and Practice
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• v.10 no.2
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• pp.161-166
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• 2016

BACKGROUND/OBJECTIVES: Energy production and the rebuilding and repair of muscle tissue by physical activity require folate and vitamin $B_{12}$ as a cofactor. Thus, this study investigated the effects of regular moderate exercise training and durations of acute aerobic exercise on plasma folate and vitamin $B_{12}$ concentrations in moderate exercise trained rats. MATERIALS/METHODS: Fifty rats underwent non-exercise training (NT, n = 25) and regular exercise training (ET, n = 25) for 5 weeks. The ET group performed moderate exercise on a treadmill for 30 min/day, 5 days/week. At the end of week 5, each group was subdivided into 4 groups: non-exercise and 3 exercise groups. The non-exercise group (E0) was sacrificed without exercising and the 3 exercise groups were sacrificed immediately after exercising on a treadmill for 0.5 h (E0.5), 1 h (E1), and 2 h (E2). Blood samples were collected and plasma folate and vitamin $B_{12}$ were analyzed. RESULTS: After exercise training, plasma folate level was significantly lower and vitamin $B_{12}$ concentration was significantly higher in the ET group compared with the NT group (P < 0.05). No significant associations were observed between plasma folate and vitamin $B_{12}$ concentrations. In both the NT and ET groups, plasma folate and vitamin $B_{12}$ were not significantly changed by increasing duration of aerobic exercise. Plasma folate concentration of E0.5 was significantly lower in the ET group compared with that in the NT group. Significantly higher vitamin $B_{12}$ concentrations were observed in the E0 and E0.5 groups of the ET group compared to those of the NT group. CONCLUSION: Regular moderate exercise training decreased plasma folate and increased plasma vitamin $B_{12}$ levels. However, no significant changes in plasma folate and vitamin $B_{12}$ concentrations were observed by increasing duration of acute aerobic exercise.

• Korean Journal of Health Education and Promotion
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• v.26 no.1
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• pp.51-61
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• 2009

Objectives: The objective of this study was to identify the factors associated with the percentage of body fat and bone mineral density (BMD). Methods: 886 students of the 4, 5, 6th grade were sampled from 6 elementary schools in Daejeon city from May to June 2005. Participants completed the questionnaire on socio-demographic factors, eating habits and physical activities, and had the measurements of body composition, BMD, height and weight. T-test, one-way ANOVA and ANCOVA were used to compare body composition and BMD among groups defined by study factors. Multiple regression analysis was used to determine the factors related with percentage of fat and BMD in each sex. Results: When adjusting age, height, weight and family income, the amount of food intake and regular exercise including the days of exercise per week and the daily exercise duration were significantly associated with percentage of fat in boys, but not in girls. When adjusting the same variables, regular exercise, the days of exercise per week and the daily exercise duration were positively associated with BMD in both sexes. Conclusion: Regular exercise with one or more days per week were the common factor to decrease percentage of fat and increase BMD in school children. This showed that regular exercise program could improve the body composition of school children.

• Korean Journal of Community Nutrition
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• v.13 no.5
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• pp.653-662
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• 2008

This study has been performed to analyze nutrition knowledge, dietary self-efficacy and eating habits of the elementary- and middle- school students (n = 342) according to student's stage of regular breakfast or exercise. Middle school students had higher nutrition knowledge than primary school students. Total dietary self-efficacy and dietary habit scores were not different by school year and gender. Nutrition knowledge, dietary self-efficacy and dietary habit scores were positively correlated each other. By the stage of regular breakfast, the pre-contemplation stage comprised 13.6%, contemplation 2.1%, preparation 15.7%, action 11.5% and maintenance stage 59.1%. By the stage of regular exercise, the pre-contemplation stage comprised 20.9%, contemplation 7.3%, preparation 45.6%, action 9.8% and maintenance stage 16.4%. According to the stage of change, movement from the pre-contemplation and contemplation to upper stage increased the dietary self-efficacy score. Dietary habit score increased significantly across the five stages of changes. The results of this study indicate differences in stages of changes in breakfast intake and regular exercise and indicate the need for taking these phases of change into account in nutrition education.

• Journal of The Korean Society of Integrative Medicine
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• v.4 no.2
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• pp.67-76
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• 2016

Purpose : The purpose of this study was to compare the effects of a 5 week walking program on body composition and functional fitness, as well as its effects on anxiety and depression in elderly women by regular walking exercise(RWE), which helps to provide proper treatment program to them. Method : The 32 subjects who had a regular walking exercise in this research and randomly assigned into two groups, a walking group and a control group. 15 subjects in the experimental group who had RWE. The 17 subjects in the control group who did not have walking exercise. The members of exercise group had walking 50 minutes a day, three times a week, for 5 weeks in same conditions. Results : After RWE, The participants showed lower body weight, body fat mass, % fat, BMI, wast-hip ratio in the walking program. Muscle mass and basic metabolic rate significantly increased after completing the walking program. The health-related physical fitness of the walking group, flexibility and static balance ability were significantly increased. elderly women taking RWE showed significant decreases in the anxiety and depression levels. Conclusion : Findings of this study indicated that A RWE program had favorable effect on body composition, functional fitness, and depression and anxiety in elderly women. Future research needs to target various elderly women groups of a long period.

• Korean Journal of Health Education and Promotion
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• v.20 no.3
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• pp.255-267
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• 2003

The purpose of this study is to analyze the affecting factors on self-efficacy of walking exercise. The subjects were 413 working men. Whose data and material were collected through an organized questionnaire from October, 1999 to May 2000. The major results of this were as follows； 1. 61.1％ of the subjects' major affecting factor was deep sleep, 65.0％ of the subjects' majo affecting facto was regular physical screening, 51.1％ of the subjects' regular exercise, 18.7％ of the subjects' walking exercise. 2. stages of change related to walking exercise of the subjects were as follows, 15.8％ of the subjects were in the precontemplation stage, 51.1％ of the subjects were in the precontemplation stage. 3. The average self-efficacy concerning walking exercise was 3.16 points. 4. With stepwise multiple regression, the most significant factor on self-efficacy related to walking exercise in stages of change was the preparation stage. According to the results of this study, a concrete practice program is needed to promote self-efficacy related walking exercise.

• Korean Journal of Exercise Nutrition
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• v.13 no.2
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• pp.109-113
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• 2009

The objective of this study was to compare the effects of a combined treatment consisting of an isoflavone diet and aerobic exercise on the Caspase 9 levels, and Bcl-2 levels during menopause, using 30 S.D ovariectomized rats as a model, over 12 weeks. The ovariectomized rats were divided into 4 experiment groups, with 8 rats in each group, as follows: (1) General diet group (GD, n=8), (2) Isoflavone diet group (ID, n=8), (3) General diet + Exercise group (GEX, n=8), (4) Isoflavone diet + Exercise group (IEX, n=8). The findings of this study were as follows: 1. Combined treatment consisting of an isoflavone diet and regular exercise resulted in a significant reduction in the expression of caspase-9 proteins (p<0.05), and a significant increase in the expression of Bcl-2 proteins (P<0.001). In addition, apoptotic cells were more decreased (p<0.001) in GEX and IEX group. This also suggests that cardiovascular disease in postmenopausal women might be prevented or inhibited to exert positive apoptotic inhibitory effects by increasing Bcl-2 protein expression within aortic tissues during vascular movement and decrease caspase-9 protein.

• Korean Journal of Social Welfare
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• v.66 no.4
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• pp.5-23
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• 2014

This study performed a series of analyses to examine the effects of regular exercise on depression using data from the HAS (Hallym Aging Study) and the KLoSA(Korean Longitudinal Study of Ageing). The effect of regular exercise on depression was tested through propensity score matching methods. In addition, analyses of five indirect effect models were performed to verify a theoretical description about how regular exercise has an effect on depression. The results of analysis were as follows. First, it was found in the two samples that elderly people who exercise regularly have a lower level of depression compared to those who do not. Second, the results of analysis of five indirect effect models were all significant. The psycho-physiological models showed the effect of regular exercise on depression using ADL(Activities of Daily Living) and grip strength. The psycho-social models also demonstrated the effect of regular exercise on depression using variables related to social activities. Based on these findings, intervention strategies to prevent depression was discussed.