• 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 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.

• 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.

• Korean Journal of Adult Nursing
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• v.20 no.2
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• pp.269-279
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• 2008

Purpose: The study was to examine the effect of lumbar stabilization exercise on back pain, physical fitness, sleep, and depression in middle-aged women who have chronic back pain. Methods: With one group pre-post test design, 18 subjects who have had more than 6 months of back pain were recruited by convenience sampling in D metropolitan area. Lumbar stabilization exercise was based on Tai Chi for back pain program developed by Lam(2003). This program was mainly focusing on strengthening lumbar stabilizing muscle for one hour per session, twice a week for 20 weeks. Degree of back pain, back pain disability, sleep, and depression were measured at three time points(pretest, 12 weeks, and 20 weeks) by a structured study questionnaire. Physical fitness variables including waist flexibility, mobility, and back muscle strength were measured three times at health promotion center located in the university hospital. Data were analyzed by frequency, descriptive statistics, and repeated measures of ANOVA. Results: Mean age of subjects was 52 years(SD = 6.4). Most of them(90%) had suffered from back pain more than one year and 67% was taking medicine to relieve their back pain. Results showed that back pain score and disability score were not significantly decreased after the exercise. On physical fitness variables, however, waist flexibility(F = 3.50, p = .04) and mobility(F = 3.31, p = .04) were improved after the exercise. Quality of sleep(F = 4.48, p = .03) was improved gradually and depression scores were also decreased(F = 3.12, p = .05) after the exercise. Conclusion: This lumbar stabilization exercise was not able to reduce chronic back pain, but could improve physical fitness and psycho-social variables for community dwelling women who have chronic back pain. Further study is needed to replicate this exercise with control group to confirm the positive effect.

• Research in Community and Public Health Nursing
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• v.20 no.4
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• pp.474-482
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• 2009

Purpose: The purpose of this study was to examine the effects of Danjeon Breathing Exercise (DBE) on vital capacity, physical fitness, anxiety and depression among older adults. Methods: This study employed the nonequivalent control group pretest-posttest design. The experimental group participated in a 12-week DBE program. Vital capacity and physical fitness were measured with a health measurement system (HELMAS). Anxiety and depression were measured with SCL-90-R-K. Data were collected from 37 community-dwelling older adults (experimental group=21, control group=16) in the Seoul metropolitan area. The data were analyzed by $x^2$-test, Mann-Whitney test and ANCOVA. Results: The experimental group taking DBE reported significant increases in flexibility than the control group, but differences in vital capacity and balance were not significant. Older adults taking DBE showed significant decreases in the anxiety and depression levels. Conclusion: A DBE program may be a useful nursing intervention for older adults to improve their flexibility and to reduce anxiety and depression.

• 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 Internet of Things and Convergence
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• v.10 no.4
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• pp.89-99
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• 2024

The purpose of this study was to examine how functional movement screen (FMS) affects the health fitness of adults and to consider how injury prevention measures that utilize the strengths of each function are helpful. The subjects of the study were 40 ordinary people who received level 1 in the physical fitness evaluation results of National Fitness 100. For data processing, correlation analysis was performed to determine the relationship between variables, and paired t-test was performed to compare differences between variables according to gender. The research results are as follows. First, a correlation between FMS and health fitness was confirmed. Second, gender differences were confirmed in FMS measurement. Third, gender differences were confirmed in the health fitness test. By utilizing the advantages of functional movement screen (FMS) measurement, we presented how it contributes to injury prevention for recreational athletes, and presented an effective exercise method by analyzing the differences in FMS measurement and health fitness according to gender. Through these FMS measurements and health fitness measurement research, we hope to apply IT technology and wearable technology to improve the health of adults and prevent injuries, and improve the physical strength and health of the people.

• Journal of the Korean Applied Science and Technology
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• v.37 no.3
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• pp.551-563
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• 2020

The purpose of this study was to identify the characteristics of health-related indicators according to the participation of swimming program by adults with intellectual disabilities(ID). To this end, 20 adults with IDs, aged 20-39 living in Busna, were selected. Participants divided into two groups: swimming program participation(n=10) and non-participation(n=10). Data were collected by measuring the subjects health-related physical fitness, stress hormones, and immune function and data analysis was conducted using SPSS 18.0, paired t-test, independent t-test and two-way ANOVA. As a result, muscle strength(p<.001), muscular endurance(p<.001), flexibility(p<.001), cardiovascular endurance(p<.01) improvement of exercise group significantly but there was no significant difference in the control group. The stress hormone cortisol(p<.01) was significantly decreased in the exercise group and there was no significant difference in the control group. The immunoglobulins, IgA(p<.05), IgG(p<.001), IgM(p<.05) were significantly increased in the exercise group, but not significantly different in the control group. Therefore, regular swimming program can be said to be a very effective exercise program for improving the physical fitness of adults with IDs, and it is thought that it can reduce stress and help improve immune function. This suggests the need for active physical activity program development and intervention to maintain the health of adults with IDs and prevent chronic diseases.

• Journal of Physiology & Pathology in Korean Medicine
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• v.20 no.5
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• pp.1254-1260
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• 2006

The purpose of this study was to the Pre-Post submaximal exercise for analyze the Blood Lactate, LDH(Lactate Dehydrogenase) and Glucose in the runners. The subjects were 12 volunteers 6 sprinters and 6 distance runners who agreed to intention of this study. Subjects peformed until possible all-out trials. Blood samples were taken from a Ante cubital vein Pre-Post exercise and every rest 5min during the all-out trial. The results obtained were summarized as follow; 1) Blood Lactate of Pre-Post exercise in treadmill test showed no significant difference between sprinters and distance runners, but showed significant in sprinters and distance respectively. 2) Serum LDH of Pre-Post exercise in treadmill test showed no significant difference between sprinters and distance runners, and that showed no significant in sprinters and distance respectively. 3) Blood Glucose of Pre-Post exercise in treadmill test showed no significant difference between sprinters and distance runners, and showed no significant in distance, but showed significant in sprinters. These data indicate first that the value of 4mmol/${\ell}$, commonly referred to as OBLA(Onset of Blood Lactate),may often underestimate the upper limit of tolerance to lactate during a maximal endurance peformance test until all-out. second, our date suggested that the sprinters exercise decreases serum LDH activities and the distance increases serum LDH activities. therefore serum LDH concentration changed following a different exercise. Third. for the concentration of the glucose in blood the sprinters was show to be higher. However it needs more studies to find out the relationship between this result and the fitness factor. therefor, since the runners has an intermittent characteristic which includes a frequent momentary change, it needs the fitness training that being consisted of various training. in the training method, it needs the training process which is from the whole fitness to specific fitness to improve general physical ability.

• Journal of The Korean Association of Information Education
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• v.19 no.1
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• pp.99-112
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• 2015

While youth health is getting worse and worse, various physical improvements programs are being operated in schools. However, self-learning fitness management without the guidance of a teacher has various limitations. Fitness management applications may be helpful to overcoming the limitations. But as they are mostly developed for adults, young people will have limitations in using them. Therefore, this study is intended to develop a physical activity promotion system (application) which will enable young people to do self-learning fitness management. The features of the application are that it is classified as home training and school training, providing various physical activity programs, and added with interesting elements for continuous use. The results of application have revealed that student test groups experienced improvement in fitness health and showed positive reponses to satisfaction of the application, exercise hours, and continuous use.