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Featured researches published by Gunsoo Han.


Journal of Physical Therapy Science | 2014

Changes in Glucose, TNF-α and IL-6 Blood Levels in Middle-aged Women Associated with Aerobic Exercise and Meditation Training.

Sun Hur; Gunsoo Han; Byung-Jun Cho

[Purpose] The purpose of this study was to investigate the effects of exercise therapy on glucose, TNF-α and IL-6 blood levels in middle-aged women. [Subjects] A total of 46 participants were assigned to four groups: Type D personality+Exercise (n=12), Type D+no-Exercise (n=12), not-Type D+Exercise (n=12), and not-Type D+no-Exercise (n=10). [Methods] Blood glucose was measured by the hexokinase method. An enzyme-linked immunosorbent assay (ELISA) was used to measure the circulating plasma levels of TNF-α and IL-6 (Quantikine HS, R&D Systems, Minneapolis, USA). An aerobic exercise program and meditation were conducted in parallel by the Exercise groups for 10 months. Stretching was performed for 10 min as a warm-up, and then walking and running on a treadmill at 60 to 70% of HRmax were performed for 40 min three times a week. Blood samples were processed according to standard laboratory procedures. [Results] Fasting glucose showed a significant interaction effect among groups, group×time, and post-test. TNF-α showed a significant difference among groups, and was lower in the not-Type D personality+Exercise group than in the other three groups. IL-6 showed a significant difference among the groups. [Conclusion] In conclusion, personality may affect the established effect of exercise on cytokine activity. Type D personality was independently associated with significant immune activation, and increase in TNF-α activity was observed among Type D participants.


Journal of Physical Therapy Science | 2013

Endurance Exercise Effects on Cardiac Hypertrophy in Mice

Gunsoo Han

[Purpose] The purpose of this study was to investigate the effects of eight weeks of an endurance exercise training program on cardiac hypertrophy in mice. [Subjects] Male 129 SvJ/C57BL6 mice (n=12) were used. The exercised mice ran on a motor-driven treadmill five days per week for 40 minutes at a speed of 24 m/min for eight weeks. All mice were weighed once a week to monitor excessive increases or decreases in weight. Peak weight was determined as the highest weekly recorded weight. Post-training weight was also taken on the day of final data collection. Following body weight measurement, the heart was excised from the body and weighed. The ratio of heart weight to body weight was calculated as an indicator of cardiac hypertrophy in the current study. Using an independent t test, the ratio of heart weight to body weight was compared between the exercised mice and the sedentary mice. [Results] The results show that the untrained mice had a significantly greater heart weight to body weight ratio compared with the wild-type mice. There was also a significant difference in body weight between the exercised and sedentary groups. The ratio of heart weight to body weight was lower in the untrained mice, but no significance was observed. [Conclusion] Running on the motor- driven treadmill five days per week for 40 minutes at a speed of 24 m/min for eight weeks did not increase in the ratio of heart weight to body weight in mice compared with the sedentary.


Journal of Physical Therapy Science | 2018

The relationship between physical fitness and academic achievement among adolescent in South Korea

Gunsoo Han

[Purpose] The purpose of this study was to identify the relationship between physical fitness level and academic achievement in middle school students. [Subjects and Methods] A total of 236 students aged 13–15 from three middle schools in D city, South Korea, were selected using a random sampling method. Academic achievement was measured by students’ 2014 fall-semester final exam scores and the level of physical fitness was determined according to the PAPS (Physical Activity Promotion System) score administrated by the Korean Ministry of Education. A Pearson correlation test with SPSS 20.0 was employed. [Results] The Pearson correlation test revealed a significant correlation between physical fitness and academic achievement. Specifically, students with higher levels of physical fitness tend to have higher academic performance. In addition, final exam scores of core subjects (e.g., English, mathematics, and science) were significantly related to the PAPS score. [Conclusion] Results of this study can be used to develop more effective physical education curricula. In addition, the data can also be applied to recreation and sport programs for other populations (e.g., children and adult) as well as existing national physical fitness data in various countries.


Journal of Physical Therapy Science | 2017

Effect of belly dancing on urinary incontinence-related muscles and vaginal pressure in middle-aged women

So-Young An; Seungsuk Kim; Gunsoo Han

[Purpose] This study examined the effect of belly dancing on the urinary incontinence-related muscles and vaginal pressure in middle-aged women to provide fundamental data for establishing an effective training program focusing on mitigating and preventing urinary incontinence. [Subjects and Methods] The subjects included 24 middle-aged women, who have been diagnosed with urinary incontinence. The subjects were randomly divided into two groups, viz. the experimental group (N=12) and control group (N=12). The experimental group underwent a belly dancing program focusing on pelvis moves. [Results] In the experimental group, the urinary incontinence-related muscle strength and vaginal pressure were increased, while the control group showed no significant change. [Conclusion] Belly dancing focusing on pelvis moves had a positive effect on the urinary incontinence-related muscle strength and vaginal pressure, suggesting that a recreational dance program focusing on pelvic exercise can be used to prevent and relieve the symptoms of urinary incontinence as a non-surgical treatment.


Journal of the Korea Academia-Industrial cooperation Society | 2016

The Relationship among Flow, Satisfaction, Service Quality, and Revisit Intention of College Ski Class Participants

Gunsoo Han; Jung-Heun Lee; Wi-Sug Ko

The purpose of this study was to examine the relationship among flow, satisfaction, service quality, and revisiting intention of college ski class participants. By analyzing a total of 106 college students from a university in G city, this study found the following. First, the flow of ski classes had a positive influence on the satisfaction with the ski class. Second, the satisfaction with the ski classes had a positive influence on the service quality of the ski resort. Third, the service quality of the ski resort had a positive influence on the revisit intention. Fourth, the flow of the ski class had a positive influence on the service quality of the ski resort mediated by the satisfaction of the ski class. Fifth, the satisfaction of the ski class had a positive influence on the revisiting intention mediated by the service quality of the ski resort.


Journal of Physical Therapy Science | 2016

The effect of peculiar complex core balance training on isokinetic muscle functions of the knee and lumbus

Myung-Sun Lee; Gunsoo Han

[Purpose] This study aimed to investigate the effect of peculiar complex core balance training on the isokinetic muscle function of the knee joint and lumbus to provide fundamental data for establishing a training program that focuses on improving the performance and prevention of injury by developing the core and low extremity muscles. [Subjects and Methods] The participants in this study included a total of ten high school athletes involved in a throwing event for over five years. The subjects were randomly divided into two groups: The experimental group (N=5) and the control group (N=5). The experimental group underwent peculiar complex core balance training. [Results] According to the analysis of covariance, there was a significant effect of peculiar complex core balance training. Therefore, the isokinetic muscle function of the knee joint and lumbus in the experimental group participating in peculiar complex core balance training was significantly increased compared to the control group. [Conclusion] It is concluded that peculiar complex core balance training had a positive effect on the isokinetic muscle function of the knee and lumbus in throwing event athletes.


Journal of Physical Therapy Science | 2016

Effect of a 12-week complex training on the body composition and cardiorespiratory system of female college students.

Seungsuk Kim; Gunsoo Han

[Purpose] The aim of this study was to examine the effects of a complex exercise program on the body composition and cardiorespiratory system of female college students. [Subjects and Methods] This study included 20 female college students who had not participated in any particular sports in the last 3 months. The complex exercise program consisted of two parts, aerobic exercise and weight training. First, aerobic exercise was implemented (30 min 5 times a week for 12 weeks) according to the participants’ exercise tolerance. Second, weight training was implemented (40 min 5 times a week for 12 weeks) with 60% of 1 repetition maximum (RM). [Results] The t-test results showed significant differences in body composition between the before and after the complex exercise program. The subjects’ body weights and body fat percentages were decreased, and their skeletal muscle masses were increased. Increased levels of maximal oxygen uptake (VO2max), maximal expiratory volume (VEmax), and maximal heart rate (HRmax) were also observed. [Conclusion] In conclusion, the 12-week complex exercise program, including aerobic and weight training, had positive effects on the body composition and cardiorespiratory system of the female college students.


Journal of Physical Therapy Science | 2013

Effects of endurance exercise on mitochondrial function in mice.

Gunsoo Han; Seon-Rye Kim

[Purpose] The purpose of this study was to investigate the effects of 8 weeks of endurance exercise on the cardiac mitochondrial function of mice. [Subjects] Ten 129 SvJ/C57BL6 Male mice were used. The mice were randomly divided into an exercise group (n=5; mean ± SD weight, 27.4 ± 1.6 g) and a control (n=5; mean ± SD weight, 28.2 ± 1.1 g). The exercise mice ran on a motor driven treadmill 5 days per week for 30 minutes at a speed of 24 m/min for 8 weeks. Mitochondrial function as measured RCI was compared between the exercise and control group mice using an independent t test. [Results] The exercise mice had a significantly greater state 4 respiration than to the sedentary control mice. There was also a significant difference in RCI between exercise and sedentary control mice. [Conclusion] Endurance exercise decreased RCI, indicating an uncoupling of respiration and oxidative phosphorylation.


Journal of the Korea Academia-Industrial cooperation Society | 2012

Relationships between achievement goal orientation and self-management in high school track & field athletes

Wi-Sug Ko; Gunsoo Han

This study examined the relationship between an achievement goal orientation and self-management in track & field athletes` of physical education high schools. Moreover, we hypothesized that the achievement goal orientation and self-management would be differed by their gender, special field, and career. Participants were 229 athletes. They completed achievement goal orientation and self-management questionnaires independently. Results from each statistical method based on the research questions revealed that there was a statistical difference in the subject goal orientation(p


Journal of the Korea Academia-Industrial cooperation Society | 2012

The Effects of Participation in Family Leisure Activity on School Adjustment of Middle School Students

Jung-Joo Lee; Wi-Sug Ko; Gunsoo Han

The purpose of this research was to investigate effects of participation in family leisure activity on school adjustment of middle school students. A total of six hundred questionnaires were distributed to the subjects, but only 587 questionnaires were collected. After excluding 12 questionnaires, 575 questionnaires were used for the analysis. An analysis of variance and independent t test were conducted using SPSS 18.0 for Windows and all comparisons were made at the p

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Byung-Jun Cho

Kangwon National University

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Moon Tae Young

Kangwon National University

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Myung-Sun Lee

Chungnam National University

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Seon-Rye Kim

Chungnam National University

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Sun Hur

Kangwon National University

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Younghwa Lee

Chungnam National University

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