• Journal of agricultural medicine and community health
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• v.35 no.2
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• pp.165-176
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• 2010

Objectives: This study is to identify the effect of detraining on lipoprotein and body composition after 8 week calorie restriction and different level of aerobic exercise among obese middle-aged women. Methods: The 30 middle-aged women whose body fat were over 30% were randomly allocated into three groups of control, exercise group of 40% $VO_2$max level, and exercise group of 60% $VO_2$max level. All the participants were taught to record their calorie intake and restrict daily 500kcal intake. After eight-week exercise and daily 500kcal restriction, their body compositions and blood lipid levels were measured again. Results: The weight, BMI, body fat, total cholesterol, triglyceride, and LDL-cholesterol levels showed significant decreases after eight-week exercise and calorie restriction in the two exercise groups. However, detraining tended to increase them again after detraining of 4 weeks, and even more after 8 weeks. Conclusions: Detrainging after calorie restriction and exercise tended to increase levels of indices for body composition and lipoprotein among obese middle-aged women.

• Journal of Digital Convergence
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• v.18 no.4
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• pp.163-176
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• 2020

The strong demand for corporate social responsibility has led to growing consumer boycotts of corporate misconduct. Although there are differences over the legality of the boycott, it is important to develop the boycott in an effective and correct way because of its positive effects in terms of consumer rights and society. This study identified the factors and their influences on the intention of continuing and stopping boycotts when the boycott was becoming popular. In addition, in accordance with the duration(low/high) and intensity(low/high) of consumer boycott participation, the relative influence of antecedent factors on the continuous and discontinuous intention of boycotts was examined. A total of 272 questionnaires were collected from consumers currently participating in the boycott and analyzed. The analysis showed that the preceding factors had discriminatory effects on the intention of continuing and stopping the boycott, and the effects of the preceding factors on the intention of continuing and stopping the boycott were different depending on the duration and intensity of the boycott. Based on the research results, this study suggested implications, limitations, and future research directions.

• Journal of Digital Convergence
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• v.12 no.1
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• pp.579-592
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• 2014

The present paper attempts to account for temptation of quit excercise of dance sports participant. purpose of this study is to find out the relationship among the Partner Violence experiences of dance sports participant, their temptation of quit excercise, their embarrassment and desire of accomplishment. The results of this study are as follows; First, there are differences in temptation of quit exercise according to personal characteristics. Second, after the analysis of the original structural model proposed in order to explain temptation of quit exercise of dan sports participants, it was found out that the modified model eliminating inappropriate factors, such as results which is a measurement variable of temptation of quit exercise. Third, in the following order, these factors had more relative influences on temptation of quit exercise of dance sports participants. Based on the above explanation, it was found out that partner violence experiences, embarrassment, and desire of accomplishment had direct causality with the temptation of quit exercise. Therefore, it is necessary to prevent and react appropriately to the possible violence of partner in order to lower the temptation of quit exercise of dance sports participants. Also, it is required for coaches and administers to make active and consistent efforts ro improve positive desire of accomplishment.

• Journal of the Korea Convergence Society
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• v.10 no.4
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• pp.219-227
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• 2019

The purpose of this study was to analyze relations among the stages of exercise change, exercise self-schema, and temptation of quitting exercise to figure out changes to the exercise behavior according to a psychological process. For this purpose, the study used total 297 questionnaires from adults using a public sports center. Collected data was treated with the SPSS 18.0 program, being put to the test through exploratory factor analysis, MANOVA, multiple regression analysis, and discriminant analysis. The findings were as follows: first, there were differences in exercise self-schema according to the stages of exercise change; second, there were differences in the temptation of quitting exercise between coaches and burnout according to the stages of exercise change; third, behavioral self-schema and burnout were major factors to distinguish the stages of exercise change; and finally, exercise self-schema had negative effects on burnout, and cognitive-emotional self-schema had negative effects on affect.

• 대한근관절건강학회:학술대회논문집
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• 1999.11a
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• pp.376-377
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• 1999

• Journal of Life Science
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• v.22 no.4
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• pp.532-537
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• 2012

We investigated the effect of smoking on cardiovascular responses during acute dynamic exercise. Eleven college students who had been smoking (duration of smoking: $7.45{\pm}0.90$ years; number of cigarettes per day: $17.72{\pm}1.22$) participated in this study. All subjects completed a graded exercise testing to determine the relative exercise intensity. The cardiovascular responses were measured at rest, and during mild and moderate exercise immediately, 24, and 48 hours after smoking. The same procedures were repeated during 24-h smoking withdrawal. All subjects were continuously instrumented to measure systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR), stroke volume (SV), cardiac output (CO), and total vascular conductance (TVC) at rest and during exercise. The results showed that compared to the nicotine abstention, SBP, DBP, MAP, and HR were significantly higher at 24 and 48 hours after smoking ($p$<0.05), and CO was significantly higher at rest and during moderate exercise ($p$<0.05). There were no differences in SV and TVC before and after smoking. Thus, the results suggest that smoking is associated with an exaggerated sympathetic nerve activity during dynamic exercise. Consequently, smoking cessation may help reduce cardiac events, such as stroke and heart attack, during exercise.

• 한국노년학
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• v.29 no.4
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• pp.1247-1259
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• 2009

Muscle mass is reduced by aging. There seems to be no direct relationship between sarcopenia(muscle loss) and medical cost in the elderly, but lowering muscle mass results in increase risk of fall and decrease of strength, fitness, physical activity, and independent life. This is coupled with physical trouble and chronic degenerative disease such as diabetes, obesity, hyperlipidemia, and hypertension. Thus, sarcopenia is potential risk factor increasing mortality. The purpose of this study was to investigate the effects of elastic band exercise and detraining on sarcopenia prevention related variables, body composition and fitness. The subject of this study was 60~70 aged 14 seniors who participated in exercise program in J-welfare senior center at J-gu in S-city. Elastic band exercise was performed twice per week for 12 weeks. The body composition and fitness variables were measured before 12 weeks of control, after control(before exercise), after 12 weeks of exercise(before detraining), and after 12 weeks of detraining. There was no significant difference in body composition and fitness variables before and after 12 weeks of control, but elastic band exercise before and after 12 weeks has effect on body composition variables such as weight (t=2.978, p=0.001), body mass index (t=3.502, p=0.004), percent body fat (t=2.216, p=0.045), muscle mass (t=-3.837, p=0.002), visceral fat area (t=5.186, p<0.001), and waist-hip ratio (t=3.045, p=0.009) and on fitness variables such as 2-minutes step (t=-6.891 p<0.001), arm curl (t=-4.702, p<0.001), chair stand (t=-4.860, p<0.001), chair sit and reach (t=-5.910, p<0.001), back scratch (t=-3.835, p=0.002), and 8-ft up and go (t=7.560, p<0.001). This exercise effect was continued after 12 weeks of detraining on body composition variables such as weight (t=2.323, p=0.037), body mass index (t=2.503, p=0.026), muscle mass (t=-3.137, p=0.008) and on fitness variables such as 2-minutes step (t=-6.489 p<0.001), chair stand (t=-4.694, p<0.001), chair sit and reach (t=-3.690, p=0.003), and 8-ft up and go (t=7.539, p<0.001). It was found that the elastic band exercise has positive effect on body composition and fitness in the elderly and the effect was maintained over 12 weeks of detraining.

• Journal of muscle and joint health
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• v.6 no.2
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• pp.185-196
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• 1999

The purpose of this study was to identify influencing factors adherence and dropout of aquatic exercise in patients who had been diagnosed chronic arthritis. Subjects were 54 patients with rheumatoid arthritis and osteoarthritis who had participated in the 6-week aquatic exercise program in Taejon metropolitan city. Data was collected from march 25 to April 25, 1999 through face to face and telephone interview. Result are as follows. Fourteen subjects(26.0%) were adherer who was keeping aquatic exercise. The reasons of aquatic exercise adherence were improvements of physical and affectional factors. And the major reasons of dropout was an environment factors(65.8%) and second reasons was physical factors(34.2%). Participants of friends(r=.34, p=.014) was significantly associated with the total duration of an aquatic exercise adherence. For these results, the nurse who care to patients with arthritis have to encourage to maintain aquatic exercise within six month after they begin aquatic exercise.

• The Science & Technology
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• v.34 no.6 s.385
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• pp.18-20
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• 2001

• Journal of Life Science
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• v.12 no.6
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• pp.796-802
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• 2002

The purpose of this study was to determine changes in their insluin and leptin in 30 obese girls' high school students, 26kg/$m^2$ or over in BMI after the aerobic exercise and obese education program over 8 weeks and then those changes 8 weeks after the program. Those 30 obese students were divided into four groups, aerobir exercise and obese education(8), aerobic exercise(8), obese education(8) and control group(6). Aerobic exercise was applied in the form of jogging for 8 weeks, 4 times a week and 50 minutes a time and with the exercise strength of 65 to 75% HRmax. Obese education was provided 60 minutes per week over the same weeks. The results of the study can be described as follows. 1) For the level of insulin, aerobic exercise and obese education, and aerobic exercise groups showed a more significant decrease after the programs were completed than either before they were applied or 8 weeks after they were halted(p＜.05). 2) In terms of the level of leptin, aerobic exercise and obese education, and aerobic groups accomplished a more significant lowering after the programs were completed than either before they were started or 8 weeks after they were stopped(p＜.05).