• Journal of Digital Convergence
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• v.8 no.2
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• pp.55-68
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• 2010

This study identifies perceived importance and relative education necessity of entrepreneurship education program of university students. This research examine the major 5 factors of invention education program and identified the improvement of relative invention education program relation to entrepreneurship process. The sample survey of this research are 125 university student respondents and 5 invention entrepreneurs are participated. Research methods used means, percentile, frequency and factor analysis. Major findings are as follows; the selected course category of factor analysis categorized the understanding of invention concept, invention and management, invention and creativity, invention and patent and invention exercise. The mean value of perceived importance that invention and management, invention exercise, invention and creativity, invention concept and invention and patent are in order. But the perception of invention entrepreneurs to patent, management, creativity, invention exercise and invention concepts are in order. And the sub invention program's necessity degree relation to 'management and exercise' are higher than others. This study suggested that invention education program reinforcing the invention management and student takes interesting patent contents which accepted exercise program with easy.

• Journal of muscle and joint health
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• v.12 no.2
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• pp.132-142
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• 2005

Purpose: The purpose of this study is to analyze the effect of Tai Chi exercise on Cardiorespiratory function and to identify directions for future research. Method: 19 articles from Medline search of english journals(1981-2004) and 2 from Korean nursing journals were surveyed. The contents analysis were focused on outcome measures and relative factors regarding cardiopulmonary function. Results: There are 21 articles including 8 articles with quasi experimental design, 7 articles with randomized controlled design and 6 articles with comparative non experimental research design. The major subjects of research were older adults, but hypertensive patients, cardiac rehabilitative patient, and osteoarthritic patient also included. The major style of Tai Chi was Yang style with 108-form. The duration of Tai Chi exercise was from 12weeks to 13.2 years in comparative non experimental studies, but 6 weeks to 16weeks in randomized controlled experimental studies. The most effective duration for cardiopulmonary function was over 16weeks. The variables for cardiopulmonary function were blood pressure, heart rate and cardiopulmonary function via $VO_2$ max(ml/kg/min). To reduce the blood pressure in the result was found in 2 articles, to reduce the heart beat was found in 1 article, to improve the cardiopulmonary function via $VO_2$ max in results were found in 7 articles(73%) among 11 articles. Conclusion: The Tai Chi exercise over 16weeks improves the cardiopulmonary function. It is suggested that to verify the effect of Tai Chi on cardiopulmonary function, the difference of gender, age, health status will be identified through repeated experiments.

• Journal of Biomedical Engineering Research
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• v.43 no.3
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• pp.177-184
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• 2022

The purpose of this study was to present the IMU sensor based trunk stabilization exercise and to evaluate the changes in the muscle activity and thickness with non-specific low back pain patients (N=30). They were classified into two groups; lumbar stabilization exercise using IMU sensor (ILS), (n₁=20) and general lumbar stabilization exercise (GLS), (n₂=10). By comparing the difference between pre and post intervention via trunk muscle activity and muscle thickness, the significant differences were identified. Muscle activity was measured on external oblique (EO), internal oblique (IO), and multifidus (MF) by using surface electromyography (sEMG). Muslce thickness was measured on external oblique, internal oblique, transverse abdominis (TrA), and multifidus (MF) by using ultrasonography. sEMG activity was recorded at right side-bridge position. Each group performed the proposed lumbar stabilization exercise for 30 minutes a day, 5 times a week for 4 weeks. Trunk muscle activity was observed with a significant increase in the IO of ILS (p<.05) and a decrease in the MF of GLS (p<.05). Trunk muscle thickness was significantly increased in left EO and both IO of GLS (p<.05), and also significant increased right EO, both IO, both TrA, and both MF of the ILS (p<.05). In the future, a convergence approach of rehabilitation and engineering is needed to select a sensor suitable for rehabilitation purposes, study the validity and reliability of data, and produce appropriate rehabilitation contents.

• The Journal of the Korea Contents Association
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• v.8 no.10
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• pp.251-258
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• 2008

This study was to investigate the effects of the combined patterns of PNF(proprioceptive neuromuscular facilitation) on the static balance ability by 20 subjects for 6 weeks. The combined patterns of PNF were carried out by Sprinter and Skater suggested by Dietz which were practiced once a day, 3 times a week. This study were measured normal standing, one leg left and one leg right standing when eye open and close on GOOD BALANCE system. These result lead us to the conclusion that mean velocity of X,Y direction, COP velocity moment were showed a statically decrease applying post-exercise on Normal Standing Eye Open(NSEO), Normal Standing Eye Close(NSEC), One Leg Right Standing Eye Close(OLRSEC) and Just velocity of X direction were showed a statically decrease applying post-exercise on One Leg Right Standing Eye Close(OLRSEC). The above results from this study indicated that combined patterns of PNF have improved the static balance ability. However the used self-exercise ca be applied to normal people, i.e., the exercise is difficult to apply into clinical patients. The further study should be focused at development of various modified forms of the combined patterns of PNF in keeping up the improvement effect of the exercise.

• The Journal of the Korea Contents Association
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• v.20 no.11
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• pp.511-524
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• 2020

Purpose: This study aims to examine the effect of increased physical activity (PA) regarding health-related quality of life (QOL) and nutrition intake in hemodialysis patients. Methods: The research was quasi-experimental using pre-test and posttest design. The participants were 60 patients, 30 each in the experimental and control group. The program was up to eight weeks long and involved two kinds of aerobic exercises: intradialytic aerobic exercise to be performed thrice a week and walking for up to seven days a week. The 60 patients undergoing hemodialysis for end-stage renal disease underwent assessment of International Physical Activity Questionnaires (IPAQ), 24-hour diet recall and a 12-item short-form health survey (SF-12; physical component summary score(PCS) and mental component summary score(MCS)) before and after the exercise program. Nutrition intake was assessed using CAN-2.0. Data were analyzed using descriptive statistics, independent t-test, 𝑥2 test, and Mann-Whitney U test. Results: In the experimental group, PA post-test scores were also significantly higher than the pre-test scores and the levels of physical component summary score (PCS) in QOL were significantly improved post-test, but the scores on nutrient intake did not improve. The levels of PCS were significant correlations animal protein, manganese, selenium, and Vitamin C. Although there was no group effect, total calorie of nutrition intake was higher than the comparison group. Conclusion: Combined intradialytic exercise and walking was found to be effective on PA, and PCS in QOL. Therefore, the findings of the current study may provide an appropriate guidance for encouraging exercise by hemodialysis patient.

• The Journal of the Korea Contents Association
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• v.13 no.3
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• pp.381-391
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• 2013

The purpose of this study was try to check the change of a subjective evaluation about the life function fitness and health-related quality of life by executing the home support exercise program three times a week for total 16 weeks with elderly women that are order than 70 years old. The experiment group(total : 17 people, mean age : 79.4) and the control group(total : 17 people, mean age : 80.7) live Yeonje-gu in Busan city, and they don't have any physical injury and any inconvenience to move. and they are all composed of elderly women who agree to participate in this study. We carried out an analysis of covariance with SAS 9.2 statistics package. These are the results from it. First, the experiment group showed statistically significant increase(p<.001) in lifting dumbbells, repeatedly standing up and sitting down, 2.24m shuttle running, walking at the same place for 2 minutes. Second, there was no particular effect with the experiment group in flexibility(catching hands with their backs leaned against each other). This result point out that there is a need of supplementation like adding exercise item which can improve flexibility to home support exercise program. Third, there was no particular difference between the experiment group and the control group in 8 sub-factors with the subjective evaluation about health-related quality of life through SF-36. However, there the bodily pain and vitality sub-factors of experiment group was better than that of the control group with p<.10 level, so we considered this result showed us the positive effect slightly.

• The Journal of the Korea Contents Association
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• v.9 no.8
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• pp.285-293
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• 2009

The purpose of this study is to closely examine the effect of exercise behavior change of casino securities on their Self-efficacy. This observation takes place in casino enterprises in the whole country. Within these areas, we set the selected employees as the targeted sampling unit, we extracted the specimen, using the stratified cluster random sampling with the quota sampling, putting a weigh on the specimen of focused areas. Among 420 persons sampling unit, we have excluded 47 copied which seem to be insincere, and actually used 373 copies in this study. Evaluation forms are used as a study method; each form consists of continuance 5 points Likert scales and nominal/proportional scaling and used after excluding a test through the analysis of validity and reliability. After encoding and inputting the framing completed data along with each purpose, it was computerized by computer process, making use of SPSS 15.0 version. Through the data analysis according to these methods and procedures, the result on this study is described below. First, the exercise behavior change process the self-efficacy according to socio-demographic characteristics make a difference. Second, the self-efficacy according to socio-demographic characteristics make a difference. Third, the exercise behavior change process influence on the self-efficacy.

• The Journal of the Korea Contents Association
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• v.13 no.10
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• pp.434-443
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• 2013

The purpose of this study is to investigate the effectiveness of the way-finding exercise using a map in rehabilitation of cognitive function and activities of daily living in patients with a stroke. For the seven patients diagnosed with hemiplegia from a stroke, we executed the way-finding exercise using a map in the hospital, three times a week for two weeks. Loewenstein Occupational Therapy Cognitive Assessment(LOTCA) and Functional Independence Measure(FIM) were used to measure the cognitive function and performance of activities of daily living before and after intervention. For the visual perception area and the spatial relations of the spatial perception area of LOTCA, scores were significantly higher than before intervention(p<.05). For the walk/wheelchair of locomotion area and the problem solving of the social cognition area of FIM, scores were significantly higher than before intervention(p<.05). The results of this study show that a way-finding exercise for patients with a stroke is a useful therapeutic approach by enhancing cognitive function and performance of activities of daily living.

• The Journal of the Korea Contents Association
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• v.12 no.9
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• pp.408-421
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• 2012

The purpose of this study was to verify differences in changes of physical self-concept between Taekwondo participation group and non Taekwondo participation group in order to meet the needs of the study the limitations of previous studies had to be considered. The participants were elementary students in S city selected by this researcher. 30 students were in the Taekwondo participation group and 40 students were in the non Taekwondo participation group decided by ACSM(15) exercise guide line standard, three times repetition measurements per 12 weeks were executed for $2{\times}3$ mixed design with repeated measure. For this statistic, SPSS 12.0 for windows was used for technical statistic, two-way ANOVA, paired t-test, and independent t-test. The results were as follows; First, there were differences of change pattern in physical self-concept generally between Taekwondo participation group and non Taekwondo participation group. Second, there was a difference between Taekwondo exercise group and non Taekwondo exercise group according to 1st and 2nd, 1st and 3rd measurement point partially. Third, there were differences between the Taekwondo exercise group and non Taekwondo exercise group on the 2nd and 3rd measurement. In conclusion, Taekwondo discipline tended to have a large effect increasing physical self-concept.

• Nutritional Sciences
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• v.6 no.3
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• pp.135-140
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• 2003

The purpose of this study was to investigate the effects of glucuyonic acid (isolated from xylan) on the antioxidative defense systems of red gastrocnemius in rats after aerobic exercise. The glucuronic acid was isolated from xylan. Male Sprague-Dawley vats weighing 150$\pm$10 g were randomly assigned to one normal group and three exercise training groups. The exercise training groups were classified as T (glucuronic acid-free diet), TU (250mg glucuronic acid/kg bw) and 2TU (500mg glucuronic acid /kg bw) according to the level of glucuvonic acid supplementation. The rats in the normal group were confined to a cage for 4 weeks. The rats in the exercise training groups ran on a treadmill for 30 min/day, 5 days/week at a speed of 28 m/min (7% incline) for 4 weeks. Glutamate oxaloacetate transaminase (GOT) activity in the exercise training groups increased significantly compared with that of the normal group. That of the TU and 2TU groups decreased significantly compared with that of the T group. Xanthine oxidase (XOD) activity in the T group increased significantly to 74% compared with that of the normal group. That of the 2TU group decreased to 42% compared with that of the T group, thus recovering to a normal level. Superoxide dismutase (SOD) activity in the T group decreased to 32% compared with that of the normal group. That of the TU and 2TU groups increased to 28% and 34%, respectively, compared with that of the T group. Glutathione peroxidase (GSHpx) activity in the T group decreased to 16% compared with that of the normal group, but that of the TU group increased to 17% compared with that of the T group. Glutathiones transferase (GST) activity in the T group decreased to 11% compared with that of the normal group, but that of the TU and 2TU groups Increased to 28% and 31%, respectively, compared with that of the T group. The contents of thiobarbituric acid reactive substances (TBARS) in the T group increased to 81% compared with that of the normal group, but the glucuronic supplementation group recovered to the normal level. In conclusio, the effects of glucuronic acid on red gastrocnemius in rats engaged in exercise training would appear to be to reduced lipid peroxidation of tissue as an antioxidative defense mechanism.