• Journal of Preventive Medicine and Public Health
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• v.38 no.3
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• pp.291-297
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• 2005

Objectives : The effects of exercise on bone density have been found to be inconsistent in previous studies. We conducted a cross-sectional study in premenarcheal girls to test two hypotheses to explain these inconsistencies. Firstly,'the intensity of mechanical strain, in terms of the ground reaction force(GRF), has more important effects on the bone mass at a weight-bearing site', and secondly, 'calcium intake modifies the bone response to exercise'. Methods : The areal bone mineral density was measured at the Os calcis, using peripheral dual energy X-ray absorptiometry, in 91 premenarcheal girls aged between 9 and 12 years. The intensity of mechanical strain of exercise was assessed by a self-report questionnaire and scored by the GRF as multiples of body weight, irrespective of the frequency and duration of exercise. The energy and calcium intake were calculated from the 24-hour dietary recall. An analysis of covariance(ANCOVA) was used to determine the interaction and main effects of exercise and calcium on the bone density, after adjusting for age, weight, height and energy intake. Results : The difference in the bone density between moderate and low impact exercise was more pronounced in the high than low calcium intake group. The bone density for moderate impact exercise and high calcium intake was significantly higher than that for low impact exercise (p=0.046) and low calcium intake, after adjusting for age, weight, height and energy intake. Conclusions : Our study suggests that the bone density at a weight-bearing site is positively related to the intensity of mechanical loading exercise, and the calcium intake may modify the bone response to exercise at the loaded site in premenarcheal girls.

• Journal of Korean Public Health Nursing
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• v.14 no.1
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• pp.122-130
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• 2000

This study was designed to investigate the effects of an aquatic exercise program on the physical function and depression among the community elderly. The subjects were 41 cases of aged over 65 who went to elderly college in Hawsung-Kun, Kyeongkee province. Seventeen of them were assigned to control group, while twenty four subjects to the experimental group. The period of data collection was from June., 1999 to November., 1999. The aquatic exercise program was developed by the author with the assistance of rehabilitation medicine doctor and physical therapist in the public health center. The program was carried out once a week for 6 months in regular swimming pool. Data were analyzed with t-test, $X^2$ test, ANCOVA. paired t-test using SAS 6.12. Results were obtained as follows: 1. The increments in the range of motion of the shoulder and knee joints in experimental group after exercise was significantly greater than those in the control group. 2. The physical pain score decreases significantly after the exercise in the experimental group only. 3. The experimental group revealed lower level of depression after exercise than the level before the exercise, whereas control group showed no significant changes in this level. These findings may indicate that the aquatic exercise program is effective in increasing the range of motion of shoulder and knee joints and also effective in decreasing pain, the level of depression. Accordingly. the aquatic exercise program can be adopted as an health promotion program for community elderly.

• Korean Journal of Occupational Health Nursing
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• v.29 no.1
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• pp.29-37
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• 2020

Purpose: The purpose of this study was to examine relationships between perceived exercise benefits/barriers, competence, depression, and wellness, and then to identify influencing factors on the wellness of traditional market traders. Methods: One hundred eight persons working in a traditional market participated in the study of questionnaire. Data were analyzed using t-test, ANOVA, and multiple regression. Results: The scores were 2.82±0.66 for "perceived exercise benefits", 1.84±0.42 for "perceived exercise barriers", 4.68±1.56 for "competence", 9.60±7.56 for "depression", and 3.64±0.64 for "wellness". Regression analysis to identify factors affecting the wellness of traditional market traders showed that "perceived exercise benefits" was the most significant factor (β=.32, p<.001), followed by "competence" (β=.04, p=.009) and "depression" (β=.17, p=.039). The explanatory power of these variables for wellness of traditional market traders was 53%. Conclusion: Our findings suggest that perceived exercise benefits, competence and depression are significantly related to traditional market trader's wellness. Therefore, wellness programs should be developed to reduce depression and improve perceived exercise benefits and competence.

• Journal of Korean Public Health Nursing
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• v.25 no.2
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• pp.266-275
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• 2011

Purpose: The study investigated the relationship of health behavior with bone mineral density (BMD) for college students. Methods: A descriptive study was done using a convenient sampling of college students (n=116) enrolled in a health-related department. Height, weight, body mass index (BMI), health behaviors recognition of subjective health, smoking, drinking, exercise, food habits, intake of calcium, and family history of fracture were measured. BMD was measured at the right forearm using Hologic lunar duel-energy X-ray absorptiometry. Data were analyzed using descriptive analysis, t-test, ANOVA and multiple linear regression. Results: The prevalence of osteopenia and osteoporosis was 41.4% and 22.4%, respectively. Significant relationships were observed between BMD of right forearm and gender, BMI, subjective health recognition, drinking, and exercise (p<.05). Results of linear regression after adjusted BMD were increased concerning subjective health recognition and regular exercise (p<.05). Conclusions: Subjective health recognition and exercise carries positive effects on BMD. We recommend for college students that healthy behaviors like proper weight, smoking cessation, regular exercise, regular food habits, and health awareness are helpful to BMD.

• Journal of muscle and joint health
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• v.26 no.3
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• pp.232-240
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• 2019

Purpose: The purpose of this study was to investigate the effects of exercise intention, exercise habit, exercise self-efficacy on exercise behavior with elders at welfare center. Methods: The subjects were 152 elders at the welfare center at J city. Data were collected using the questionnaires which consisted of the Exercise intention scale and the Exercise habit scale developed by Lee and Gu (2018), and the Exercise self-efficacy scale developed by Lee and Chang (2001). The collected data were analyzed with the SPSS/WIN 22.0 program, which was used for frequency, percentage, mean, standard deviation, x² test, and multiple logistic regression. Results: The regular exercise group consisted of 92 elders (62.5%) and the irregular exercise group of 60 elders (39.5%). The scores for exercise intention, exercise habits, exercise self-efficacy were 3.28±0.70, 3.92±0.61, 2.80±0.88 in regular exercise group, and 2.38±0.99, 3.00±1.07, 2.04±0.73 in irregular exercise group, respectively. Two groups were significantly different between the two groups. Multiple logistic regression analysis showed that exercise intention (OR: 2.26, 95% CI:1.19~4.28), exercise habits (OR: 1.79, 95% CI:1.01~3.15), exercise self-efficacy (OR: 1.99, 95% CI:1.11~3.57) were affecting factors for regular exercise in elders. Conclusion: To increase the regular exercise behaviors of the elderly at the welfare center, it is needed the strategies to increase exercise intention, exercise self-efficacy, and exercise habits.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.9 no.3
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• pp.388-398
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• 2002

Purpose: This research was designed as a pre-post experimental study with a nonequivalent control group to verify the effects of meridian exercise on health status, depression and self-esteem in institutionalized elderly people. Method: The research population included 38 participants, 65 years and over, who were assigned to an experimental group (18) or a control group (20). All of the participants were institutionalized in Seoul Data collection was done from October. 2000 to May, 2001 and the experimental treatment for this study, meridian exercise, was done for a total 30 minutes per session for 12 sessions over two weeks. The exercise was developed by a professor of Oriental Medicine and the researchers involved in this study. The data were analyzed using the SPSS PC+ program. Result: There were no significant differences for general characteristics between the two groups. Physical health status, mental-mood health status, depression and self-esteem were low. Differences in the physical health status of the elderly people was higher in the experimental group (t=16.299, p=.000). The effects of the meridian exercise on mental-mood health status, depression, and self-esteem were statistically significant (t= 10.301, p= .000 ; t=15.579, p=.000, t=14.571, p=.000). Conclusion: According to the results, meridian exercise should be used to improve health status, reduce depression and increase self-esteem, and so promote the quality of life for elderly People who must be institutionalized. A study to measure the physiological index in meridian exercise for elderly people is suggested as a method to set up a Korean nursing intervention to enable elderly people to manage their own health.

• Journal of Korea Association of Health Promotion
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• v.3 no.2
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• pp.147-164
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• 2005

The purpose of this study was to examine the effects of physical activity on women's health. I conducted literature reviews for meta-analyses and randomized controlled trials with the target diseases including cardiovascular diseases, diabetes, cancers osteoporosis, and pregnancy outcomes. Women who were active had less total mortality and smaller incidence of hypertension, coronary heart diseases, and stroke. Exercise was better than drug therapies in preventing diabetes and effective in preventing colon and breast cancers. Exercise can reduce the risks of falling injury in elderly women. Walking during pregnancy was not harmful to the mothers and their infants, and desirable to prevent the complications of pregnancy or weight gain after pregnancy. Physical activity at work and leisure-time showed similar effects on women's health. Based on these results, moderate-intensity physical activity should be recommended to all women, Resistive, muscle strength, and balance-training exercise also can be recommended. Doctors' advices are effective to make women exercise, especially using handouts or motivational interviewing techniques. It is desirable to recommend to peform other health promotion measures together such as smoking cessation, weight control and diet control.

• Korean Journal of Occupational Health Nursing
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• v.29 no.2
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• pp.97-105
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• 2020

Purpose: This study aimed to identify the effects of psychological need satisfaction in exercise and motivation for exercise on physical activity. Methods: Eighty-five women working in three retail and health service sectors completed self-reported questionnaires during September and November 2018. Data were analyzed using SPSS for Windows 24.0 through descriptive statistics, t-tests, and logistic regression analysis. Results: Logistic regression analysis showed that intrinsic motivation (OR=1.95, 95% CI: 1.10~3.47) and autonomy (OR=1.65, 95% CI: 1.00~2.70) affected female workers' physical activity. Conclusion: To improve physical activity among women working in retail and health service sectors, programs to improve autonomy and intrinsic motivation should be developed and examined.

• The Journal of Korean Society for School & Community Health Education
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• v.19 no.3
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• pp.109-121
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• 2018

Background & objectives: Life style modification reduces the health risks of young people and improves their health status. Physical activity is known the effective factor to reduce health risks and health problems. This study performed to analyze health promotion behaviors related to physical activity among first-year students of university. Methods: To examine the association with physical activity and health promotion practices, health survey was conducted with 3,806 students who were first-year students in a university by self-reported questionnaire from February 26 to March 10, 2015. Multiple logistic regression analysis was performed to identify the difference of health promotion behaviors by physical activities. Results: 51.4% of the first-year student was regular exercisers who had practiced on regular walking exercise or regular strength exercise or regular aerobic exercise for a week. 87.8% of students exercised one or more times within the last one week. On the other hand, 12.2% of them did not exercise. In multiple logistic regression models, it remained significantly the difference of regular exercise by gender, subjective health status, sleeping time per one day, BMI, drinking behavior, and eating habit (p<0.05, p<0.01, p<0.001). Also it remained significantly the difference by physical activity type, such as walking, strengthen, and aerobic exercise (p<0.05, p<0.01, p<0.001). Conclusion: To help the achievement of academic goal, it should build physical activity policies and comprehensive health promotion programs to reduce health risk factors of university students. Comprehensive university health services and customized program for university students could help to make the best of their health. In future, to enhance physical activity practice, it needs to develop various tailed messages and smart healthcare service using health information technology (IT) on campus.

• Journal of muscle and joint health
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• v.2 no.1
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• pp.87-95
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• 1995

Many researches of aqua exercise, one of effective management for arthritis patients to reduce pain and distortion of joint have been done. Actually in America water exercise programs have been actively practiced for arthritis patients. However the study and practice of water exercise can not be found easily in Korea. Considering that the effectiveness of aqua exercise has been evidently confirmed, the exercise should be fully utilized. Under this circumstance, we provide basic data for aqua exercise program through the research on the needs of water exercise and characteristics of arthritis patients. Summerising the result of this study, the primary needs of aqua exercise is to get additional effect of medical treatment for the patients, especially unsatisfied patients to the medical treatment. The level of needs shows very high as of 57.3% of total sample. The strength of needs has relation to economic status and sociality. Hospitals and health centers should develop aqua exercise program not as a simple physical exercise but as a medical management for arthritis patients. Institutional base must be prepared for the patients, who have weak economic, physical and social ability, to easily access to the benificial exercise.