• Journal of the Korean Data and Information Science Society
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• v.23 no.4
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• pp.703-715
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• 2012

The purpose of this study is to observe the effects of the 12-week comprehensive exercise program on the metabolic syndrome index and general health of overweight middle aged women. Before and after the exercise program, research participants were measured in metabolic syndrome index and health fitness. The measurements gathered before and after the exercise program were analyzed through SPSS 18.0 to calculate average and standard deviation of all response variables. To find changes in the response variables before and after the 12-week program, Wilcoxon signed rank test was performed at a significance level of ${\alpha}$=.05. The results of this research are as follows. The 12-week comprehensive exercise program has a positive impact on the metabolic index and health fitness of overweight middle-aged women.

• Journal of muscle and joint health
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• v.14 no.2
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• pp.158-168
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• 2007

Purpose: The purpose of this study was to determine the effects of exercise using Thera Band on body compositions, blood pressure and physical fitness in the elderly women. Method: The study was designed as a nonequivalent control group pretest-posttest quasi-experimental study. Twenty four subjects were assigned for experimental group and twenty one subjects were assigned for control group. The experimental group participated in Thera Band exercise program consisting of 60 minutes per session, 3 times a week during the period of 12 weeks. The effects of the program were assessed using the instruments measuring the body compositions, blood pressure and physical fitness before and after applying the program. Data were collected between April and June in 2006, and analyzed by $x^2$-test, t-test, ANCOVA using a SPSS 11.5 program. Results: There were statistically significant in percent of body fat, muscle strength, muscle endurance, flexibility, and balance ability, but no significant differences were found in body weight, systolic pressure and diastolic pressure. Conclusion: Exercise using Thera Band can be an effective nursing intervention to improve percent of body fat, muscle strength, muscle endurance, flexibility and balance ability in the elderly women.

• Journal of the Korean Applied Science and Technology
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• v.35 no.1
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• pp.306-315
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• 2018

The purpose of this study was to investigate the effects of football talents program on body composition, fitness, self-control and self-efficacy in elementary school students The subjects were eighty males students volunteers, composed of the lower group (n=40; 1-3th grade) and senior group (n=40; 4-6th grade). The test data were analyzed by paired t-test, independent t-test and two-way repeated measures ANOVA. The alpha level of p<0.05 was set for all tests of significance. The results of the study in the both group were as follows; The muscle mass in the body composition had significantly increased, and there was a significant difference between groups. Body fat mass had significantly decreased. Fitness(cardiorespiratory endurance, muscular strength, flexibility, power and agility) had significantly increased, cardiorespiratory endurance, muscular strength, and power was a significant difference between groups. Self-control and self-efficacy had increased significantly in both groups. Therefore, the football talents program had a positive effects on body composition and physical fitness levels of elementary school students. And it seems to be effective in increasing self-control and self-efficacy.

• Journal of the Korean Applied Science and Technology
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• v.38 no.6
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• pp.1627-1642
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• 2021

This study aims to evaluate physical fitness according to the bone age of youth, and ultimately provide basic data for balanced development of youth through physical fitness standard indicators according to the bone age. A total of 730 youth aged 11 to 13 years in bone age and 11 to 13 years in chronological age were selected as subjects; and after taking X-ray films to calculate the bone age, they were evaluated by using the TW3 method. A total of 2 components in physique, which were stature and weight, were measured using a stadiometer(Hanebio, Korea, 2021) and Inbody 270(Biospace, Korea, 2019). A total of 7 components in physical fitness were measured as well, which included muscular strength (Hand Grip Strength), balance (Bass Stick Test), agility (Plate Tapping), power (Standing Long Jump), flexibility (Sit&Reach), muscular endurance (Sit-Up), and cardiovascular endurance (Shuttle Run). Descriptive statistics and independent t-test were conducted for data processing using the SPSS PC/Program(Version 26.0), and it was considered significant at the level of p< .05. The results of this study may be summarized as follow. First, the result of comparing the bone age and the chronological age of 11 to 13 years old in physical fitness, males showed significant difference in muscular strength, power, muscular endurance, and cardiovasular endurance. In females, muscular strength, balance, agility, power, flexibility, muscular endurance, and cardiovascular endurance showed significant difference. Second, physical fitness standard indicators were presented for each gender and age (11-13 years old) of youth according to the bone age; and based on this, physical fitness standard indicators, which are basic data for physical fitness evaluation according to the bone age of youth, were presented.

• Journal of Korean Home Economics Education Association
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• v.14 no.2
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• pp.15-25
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• 2002

The Purpose of this study were to identify school uniform satiafaction factors and to compare Parents. teachers. and students' middle and high school uniform satisfaction. Respondents were middle and high school parents. teachers. and students in Chonbuk province and data was collected during March, 2002. Frequencies. percentages. and mean were calculated. ANOVA. Chi-square test. reliability test were done. The results were as follows : 1. The school uniform satisfaction was composed of 5 factors of symbolism. design. management and comfort. durability and economy. and fitness. The satisfaction level of symbolism was the highest. and the management and comfort was the lowest. 2. The school uniform satisfaction level was relatively low. Teacher's school uniform satisfaction level was the highest. and students' satisfaction level was the lowest. The parents' satisfaction level of management and comfort. durability and economy. and fitness were the highest. and the teachers' satisfaction level of symbolism and design were the highest. 3. The parents and teachers' satisfaction level of symbolism and students' satisfaction level of school uniform design were higher under the strict school regulation on school uniform. Parents. teachers and students who agreed to the school uniform Policy showed higher school uniform satisfaction.

• Journal of the Korean Applied Science and Technology
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• v.34 no.4
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• pp.899-907
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• 2017

The purpose of this study is to investigate effects of floor exercise on senior fitness test, blood lipids and arterial stiffness in elderly women with metabolic syndrome. Forty one elderly women with metabolic syndrome were randomly assigned to a exercsie group(n=23) or control goup(n=18). The exercise group performed floor exercise for 12 weeks, 3times per week. Exercise intensity was increased gradually from 30%-60% of heart rate reserve. Senior fitness, blood lipids profile and arterial stiffness were measured pre and post the 12 weeks intervention. Senior fitness(lower body strength, upper body strength, flexibility, aerobic capacity and body composition(%fat, LBM, WC)), Blood lipids(TC, TG, HDL-C and LDL-C) and Arterial stiffness(PWV) were significantly improved in the exercise group after floor exercise, however no changes were confirmed in the control group. These findings indicates that 12 weeks of floor exercise improves senior fitness, blood lipids and arterial stiffness in elderly women with metabolic syndrome. Thus, this study provides evidence that floor exercise is important methods to improve metabolic syndrome health. And it can reduce metabolic syndrome symptoms risk in elderly women with metabolic syndrome.

• The Journal of Korean Physical Therapy
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• v.13 no.1
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• pp.73-82
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• 2001

In order to study the effect of the isometric exercises on the flexibility. the strength and the waist and hip circumferences, 10 female university students who aged 22.10 ${\pm}$ 1.10 years were measured by sit-up for strength, and trunk flexion test and trunk lifting for flexibility, and also measured by waist and hip circumferences before and during, and after the Swiss ball exercise program. Statistical analysis was performed using SPSS/PC WIN 7.0 version. and one-way repeated ANOVA Test, The results of the test were as shown; We found that the number of performing sit-up was increased. and the trunk flexion test and trunk lifting was increased, and the waist and hip circumferences were increased after the 6 weeks Swiss ball exercise program. These findings indicate that Isometric exercise using Swiss ball could be beneficial to the low back pain patients due to the effect of increasing strength and flexibility of the patients.

• Safety and Health at Work
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• v.8 no.1
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• pp.36-41
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• 2017

Background: Police work is generally sedentary although there may be situations that require physical endurance and strength, such as foot chases and arresting suspects. Factors such as excessive body fat can impede an officer's physical ability to deal with such occurrences. Our objective was to examine associations between officers' body fat percentage (BF%) and performance on a standardized fitness protocol. Methods: Data were obtained from fitness screening among 1,826 male and 115 female officers in a large US police agency. The screening consisted of a 2.4-km run, push-ups, sit-ups, and sit-and-reach test. Sex-specific body fat percentages were estimated from skinfold thickness measured using calipers. Linear regression models were used to examine unadjusted and adjusted mean scores of fitness tests across BF% tertiles. Results: The prevalence of overall fitness was 4.3 times greater in male officers and 3.6 times greater in female officers having the lowest BF% tertile compared with the highest tertile (30.3% vs 7.1% and 46.0% vs 12.8%, respectively). BF% was linearly and positively associated with the time of 2.4-km run (p < 0.001), and linearly and inversely associated with the number of push-ups (p < 0.001), sit-ups (p < 0.001), and the distance of sit-and-reach (p < 0.001) in men. Similar associations were observed in women with the exception of sit-and-reach (p = 0.122). Associations were independent of age, race/ethnicity, rank, and duty station. Conclusion: Overall, BF% was inversely associated with fitness levels in male and female officers. Future longitudinal studies should be initiated to explore the potentially causal relationship between BF% and fitness in law enforcement officers.

• The Journal of the Korea Contents Association
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• v.8 no.10
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• pp.301-308
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• 2008

The purpose of this study was to investigate the change of physical fitness, MDA, SOD after short-term weight reduction through exercise, food restriction and exhalation of sweat among Taekwondo players. The subjects ten male collage Taekwondo players with excellent practical skills, and more than seven years of experiences. They were asked to reduce about 5% of their body weight in seven days. Physical fitness levels were analyzed through grip strength, muscle endurance, flexibility, power, agility, balance, reaction time and MDA and SOD through blood test. The results of this study were as follows; First, there was no significant change in physical fitness due to short-term weight reduction in muscle strength, muscle endurance, flexibility, power, agility, balance and reaction time. Second, The change of MDA and SOD, resulting from short-term weight reduction did not show significant difference statistically. Therefore, the results of this study indicate that the Taekwondo players' short-term weight reduction of 5% of their body weight did not influence on their athletic performance and physiological capacity. Therefore athletes and coaches should endeavor to take exercise, dietary, and dehydration into consideration when conducting 5% of their body weight reduction in a week.

• Journal of dental hygiene science
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• v.19 no.4
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• pp.238-244
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• 2019

Background: Recently, three-dimensional (3D) printing has been hailed as a disruptive technology in dentistry. Among 3D printers, a digital light processing (DLP) 3D printer has certain advantages, such as high precision and relatively low cost. Therefore, the latest trend in resin crown manufacturing is the use of DLP 3D printers. However, studies on the internal fitness of such resin crowns are insufficient. The recently introduced 3D evaluation method makes it possible to visually evaluate the error of the desired area. The purpose of this study is to evaluate the internal fitness of resin crowns fabricated a by DLP 3D printer using the 3D evaluation method. Methods: The working model was chosen as the maxillary molar implant model. A total of 20 resin crowns were manufactured by dividing these into two groups. One group was manufactured by subtractive manufacturing system (PMMA), while the other group was manufactured by additive manufacturing system, which uses a DLP 3D printer. Resin crowns data were measured using a 3D evaluation program. Internal fitness was calculated by root mean square (RMS). The RMS was calculated using the Geomagic Verify software, and the mean and standard deviation (SD) were measured. For statistical analysis, IBM SPSS Statistics for Windows ver. 22.0 (IBM Corp., USA) was used. Then, independent t-test was performed between the two groups. Results: The mean±SD of the RMS were 41.51±1.51 and 43.09±2.32 for PMMA and DLP, respectively. There was no statistically significant difference between PMMA and DLP. Conclusion: Evaluation of internal fitness of the resin crown made using a DLP 3D printer and subtractive manufacturing system showed no statistically significant differences, and clinically acceptable results were obtained.