1.The effects of different exercises on regional bone density in young adult female athletes.
Chan Hee SONG ; Kyung Soo KIM ; Whan Seok CHOI ; Sun Myeong OCK
Journal of the Korean Academy of Family Medicine 1998;19(8):642-651
BACKGROUND: Previous studies have suggested that regular exercise may increase bone mineral density. However, the effects on bone mineral density are different depending on the types of exercises and recent studies on the effects of different exercises on bone mineral density are insufficient. This study was conducted to assess the effects of 2 different exercises(Judo, Taekwondo) and physical fitness(back muscle strength, grip strength, broad jump, vertical jump, flexibility, sit ups) on regional BMD. METHODS: Subjects were healthy adults female volunteers aged 19 to 22 years and consisted of eight Judo athletes, twelve Taekwondo athletes, and eight nonathletic controls. We measured their bone mineral density of lumbar spine, femoral neck, femoral greater trochanter, Wards triangle, femoral shaft and distal radius using dual energy X ray absorptiometry and assessed their physical fitness. We investigated the mean differences of regional bone mineral density between the groups and the relationships between physical fitness and regional bone mineral density. RESULTS: ANCOVA revealed that there were significant differences in the regional bone mineral density between the groups. The Judo athletes group had significantly higher bone density of greater trochanter, femoral shaft, distal radius, femoral neck and lumbar spine than the control group and had significantly higher bone density of greater trochanter, femoral shaft and distal radius.than the Taekwondo atheletes group. There were no significant differences of bone density in all the regions between the Taekwondo atheletes and the control groups. Partial correlation coefficients between the back muscle strength and the bone density of Wards triangle, greater trochanter, distal radius, femoral neck, femoral shaft, and lumbar were 0.581, 0.570, 0.526, 0.502, 0.424, and 0.418, Respectively (P<0.05). Correlation coefficients between the broad jump and the bone density of femoral neck, greater trochanter, and femoral shaft were 0.577, 0.539, and 0.457, respectively(P<0.05). Correlations of the grip strength, flexibility, sit ups and vertical jump with bone density of all regions were not high(r< or=0.5). CONCLUSIONS: Different types of exercises showed different effects of bone density. The back muscle strength among the physical fitness factors was considered to be the most important predictor of bone density. In the future, further studies are necessary for the effects of other exercises on bone density.
Absorptiometry, Photon
;
Adult
;
Athletes*
;
Back Muscles
;
Bone Density*
;
Exercise*
;
Female*
;
Femur
;
Femur Neck
;
Hand Strength
;
Humans
;
Martial Arts
;
Muscle Strength
;
Physical Fitness
;
Pliability
;
Radius
;
Spine
;
Volunteers
;
Young Adult*
2.Effectiveness of Non-Pharmacological Interventions on Gaming Disorder: A Systematic Review and Meta-Analysis
Chan-Myung OCK ; Hyung-Suk LEE ; Jisoo CHAE ; Hyekyeong KIM
Psychiatry Investigation 2025;22(5):490-503
Objective:
Non-pharmacological interventions (NPIs) are effective in treating gaming disorder (GD). However, studies have not comprehensively evaluated the most effective NPIs. This systematic review and meta-analysis aimed to evaluate the effects of NPIs on the prevention and reduction of GD in the general population with GD.
Methods:
We searched five databases (MEDLINE, Embase, Cochrane CENTRAL, PsycINFO, and CINAHL) for English-language randomized controlled trials (RCTs) published till May 12, 2024, using Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines. Two independent reviewers selected studies, extracted data, and assessed quality using the Cochrane Risk of Bias Tool (RoB2). Meta-analyses were conducted using a random-effect model, with effect sizes calculated using Hedges’s g and heterogeneity assessed using I2 statistics.
Results:
A total of 18 RCTs involving 1,950 participants were included. The NPIs included psychotherapy, behavioral interventions, and other strategies. The pooled analysis showed a significant reduction in GD severity (Hedges’s g=-0.82; 95% confidence interval, -1.23 to -0.52; I2=90.36%). Psychotherapy, particularly cognitive-behavioral therapy, showed the most substantial effect (10 studies, 1,036 participants; Hedges’s g=-1.34). Behavioral interventions (4 studies, 456 participants) and prevention-focused interventions (6 studies, 1,164 participants) had smaller but positive effects. Subgroup analyses revealed greater effectiveness of treatment interventions in adults than in adolescents. Sensitivity analyses confirmed the robustness of these results despite high heterogeneity (I2=90.36%).
Conclusion
NPIs, particularly psychotherapy, are effective in reducing GD severity. However, more high-quality RCTs are needed robust, evidence-based treatment guidelines.
3.Effectiveness of Non-Pharmacological Interventions on Gaming Disorder: A Systematic Review and Meta-Analysis
Chan-Myung OCK ; Hyung-Suk LEE ; Jisoo CHAE ; Hyekyeong KIM
Psychiatry Investigation 2025;22(5):490-503
Objective:
Non-pharmacological interventions (NPIs) are effective in treating gaming disorder (GD). However, studies have not comprehensively evaluated the most effective NPIs. This systematic review and meta-analysis aimed to evaluate the effects of NPIs on the prevention and reduction of GD in the general population with GD.
Methods:
We searched five databases (MEDLINE, Embase, Cochrane CENTRAL, PsycINFO, and CINAHL) for English-language randomized controlled trials (RCTs) published till May 12, 2024, using Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines. Two independent reviewers selected studies, extracted data, and assessed quality using the Cochrane Risk of Bias Tool (RoB2). Meta-analyses were conducted using a random-effect model, with effect sizes calculated using Hedges’s g and heterogeneity assessed using I2 statistics.
Results:
A total of 18 RCTs involving 1,950 participants were included. The NPIs included psychotherapy, behavioral interventions, and other strategies. The pooled analysis showed a significant reduction in GD severity (Hedges’s g=-0.82; 95% confidence interval, -1.23 to -0.52; I2=90.36%). Psychotherapy, particularly cognitive-behavioral therapy, showed the most substantial effect (10 studies, 1,036 participants; Hedges’s g=-1.34). Behavioral interventions (4 studies, 456 participants) and prevention-focused interventions (6 studies, 1,164 participants) had smaller but positive effects. Subgroup analyses revealed greater effectiveness of treatment interventions in adults than in adolescents. Sensitivity analyses confirmed the robustness of these results despite high heterogeneity (I2=90.36%).
Conclusion
NPIs, particularly psychotherapy, are effective in reducing GD severity. However, more high-quality RCTs are needed robust, evidence-based treatment guidelines.
4.Effectiveness of Non-Pharmacological Interventions on Gaming Disorder: A Systematic Review and Meta-Analysis
Chan-Myung OCK ; Hyung-Suk LEE ; Jisoo CHAE ; Hyekyeong KIM
Psychiatry Investigation 2025;22(5):490-503
Objective:
Non-pharmacological interventions (NPIs) are effective in treating gaming disorder (GD). However, studies have not comprehensively evaluated the most effective NPIs. This systematic review and meta-analysis aimed to evaluate the effects of NPIs on the prevention and reduction of GD in the general population with GD.
Methods:
We searched five databases (MEDLINE, Embase, Cochrane CENTRAL, PsycINFO, and CINAHL) for English-language randomized controlled trials (RCTs) published till May 12, 2024, using Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines. Two independent reviewers selected studies, extracted data, and assessed quality using the Cochrane Risk of Bias Tool (RoB2). Meta-analyses were conducted using a random-effect model, with effect sizes calculated using Hedges’s g and heterogeneity assessed using I2 statistics.
Results:
A total of 18 RCTs involving 1,950 participants were included. The NPIs included psychotherapy, behavioral interventions, and other strategies. The pooled analysis showed a significant reduction in GD severity (Hedges’s g=-0.82; 95% confidence interval, -1.23 to -0.52; I2=90.36%). Psychotherapy, particularly cognitive-behavioral therapy, showed the most substantial effect (10 studies, 1,036 participants; Hedges’s g=-1.34). Behavioral interventions (4 studies, 456 participants) and prevention-focused interventions (6 studies, 1,164 participants) had smaller but positive effects. Subgroup analyses revealed greater effectiveness of treatment interventions in adults than in adolescents. Sensitivity analyses confirmed the robustness of these results despite high heterogeneity (I2=90.36%).
Conclusion
NPIs, particularly psychotherapy, are effective in reducing GD severity. However, more high-quality RCTs are needed robust, evidence-based treatment guidelines.
5.Effectiveness of Non-Pharmacological Interventions on Gaming Disorder: A Systematic Review and Meta-Analysis
Chan-Myung OCK ; Hyung-Suk LEE ; Jisoo CHAE ; Hyekyeong KIM
Psychiatry Investigation 2025;22(5):490-503
Objective:
Non-pharmacological interventions (NPIs) are effective in treating gaming disorder (GD). However, studies have not comprehensively evaluated the most effective NPIs. This systematic review and meta-analysis aimed to evaluate the effects of NPIs on the prevention and reduction of GD in the general population with GD.
Methods:
We searched five databases (MEDLINE, Embase, Cochrane CENTRAL, PsycINFO, and CINAHL) for English-language randomized controlled trials (RCTs) published till May 12, 2024, using Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines. Two independent reviewers selected studies, extracted data, and assessed quality using the Cochrane Risk of Bias Tool (RoB2). Meta-analyses were conducted using a random-effect model, with effect sizes calculated using Hedges’s g and heterogeneity assessed using I2 statistics.
Results:
A total of 18 RCTs involving 1,950 participants were included. The NPIs included psychotherapy, behavioral interventions, and other strategies. The pooled analysis showed a significant reduction in GD severity (Hedges’s g=-0.82; 95% confidence interval, -1.23 to -0.52; I2=90.36%). Psychotherapy, particularly cognitive-behavioral therapy, showed the most substantial effect (10 studies, 1,036 participants; Hedges’s g=-1.34). Behavioral interventions (4 studies, 456 participants) and prevention-focused interventions (6 studies, 1,164 participants) had smaller but positive effects. Subgroup analyses revealed greater effectiveness of treatment interventions in adults than in adolescents. Sensitivity analyses confirmed the robustness of these results despite high heterogeneity (I2=90.36%).
Conclusion
NPIs, particularly psychotherapy, are effective in reducing GD severity. However, more high-quality RCTs are needed robust, evidence-based treatment guidelines.
6.Effectiveness of Non-Pharmacological Interventions on Gaming Disorder: A Systematic Review and Meta-Analysis
Chan-Myung OCK ; Hyung-Suk LEE ; Jisoo CHAE ; Hyekyeong KIM
Psychiatry Investigation 2025;22(5):490-503
Objective:
Non-pharmacological interventions (NPIs) are effective in treating gaming disorder (GD). However, studies have not comprehensively evaluated the most effective NPIs. This systematic review and meta-analysis aimed to evaluate the effects of NPIs on the prevention and reduction of GD in the general population with GD.
Methods:
We searched five databases (MEDLINE, Embase, Cochrane CENTRAL, PsycINFO, and CINAHL) for English-language randomized controlled trials (RCTs) published till May 12, 2024, using Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines. Two independent reviewers selected studies, extracted data, and assessed quality using the Cochrane Risk of Bias Tool (RoB2). Meta-analyses were conducted using a random-effect model, with effect sizes calculated using Hedges’s g and heterogeneity assessed using I2 statistics.
Results:
A total of 18 RCTs involving 1,950 participants were included. The NPIs included psychotherapy, behavioral interventions, and other strategies. The pooled analysis showed a significant reduction in GD severity (Hedges’s g=-0.82; 95% confidence interval, -1.23 to -0.52; I2=90.36%). Psychotherapy, particularly cognitive-behavioral therapy, showed the most substantial effect (10 studies, 1,036 participants; Hedges’s g=-1.34). Behavioral interventions (4 studies, 456 participants) and prevention-focused interventions (6 studies, 1,164 participants) had smaller but positive effects. Subgroup analyses revealed greater effectiveness of treatment interventions in adults than in adolescents. Sensitivity analyses confirmed the robustness of these results despite high heterogeneity (I2=90.36%).
Conclusion
NPIs, particularly psychotherapy, are effective in reducing GD severity. However, more high-quality RCTs are needed robust, evidence-based treatment guidelines.
7.Bone Acquisition Related Health Behavior Factors and Nutritional Uptake in High School Girl Student.
Sun Myeong OCK ; Churl Min KIM ; Chan Myung OCK ; Whan Seok CHOI
Journal of the Korean Academy of Family Medicine 2002;23(7):905-916
BACKGROUND: The adolescent years are a window of opportunity to influence lifelong bone health. Bone acquisition is accelerated within the genetic potential by lifestyle choices. But some adolescent girls do not care about healthy lifestyle and nutrient uptake. Therefore, we investigated the nutrition and health behavior relating to bone acquisition. METHODS: A cross-sectional study was administered to high school girl students from 4 general and 4 commercial high schools in Uijongbu, Incheon, Suwon, and Yongin. The data was gathered from 378 girls by self-reported questionnaire, which included age, height, weight, health behavior relating to bone acquisition and food-frequency. Nutrient uptake was assessed by DIET PLUS 3.0 program. RESULTS: Girls with bone acquisition inhibiting health habits were reported. Among subjects, 12.2% had regular alcohol intake, 21% smoked daily, 77.7% did not exercise regularly, 58% had light-activity, 42.2% experienced weight reduction trial, 30% had low body weight and 72.8% had less than 2 meals a day. In nutrient uptake, 33.1% of subjects took less calcium uptake and 4% less protein uptake than recommended daily allowance. Comparing general and commercial high schools, commercial students had more bone acquisition inhibiting health habits. CONCLUSION: There were many high school girl students with bone acquisition inhibiting health and eating habits. Family physicians need to promote and educate good health habits with a balanced meal associated with bone acquisition in girls, especially commercial high school students.
Adolescent
;
Body Weight
;
Calcium
;
Cross-Sectional Studies
;
Diet
;
Eating
;
Female*
;
Gyeonggi-do
;
Health Behavior*
;
Humans
;
Incheon
;
Life Style
;
Meals
;
Physicians, Family
;
Recommended Dietary Allowances
;
Smoke
;
Weight Loss
;
Surveys and Questionnaires
8.A nonfamilial case of multiple juvenile polyposis.
Jin Seop SHIM ; Sang Mook CHOI ; Eun Mi KIM ; Jae Ock PARK ; Sang Jhoo LEE ; Chan Sup SHIM ; Chul MOON
Journal of the Korean Pediatric Society 1992;35(6):851-861
No abstract available.
9.Effect of terazosin on blood pressure and serum lipids in nild to moderate hypertension.
Jong Pil KIM ; In Koo KANG ; Seung Cheol SHIM ; Ock Chan LEE ; Kyung Soo KIM ; Jeong Hyun KIM ; Heon Kil IM ; Bang Hun LEE ; Chung Kyun LEE
Korean Circulation Journal 1993;23(3):454-460
BACKGROUND: We evaluated the antihypertensive effect, safety and effect on serum lipids of terazosin, second generation alpha1-blocker. METHODS: Terazosin 1-4mg was adminstered once daily in 20 patients for 12 weeks with dose titration every 2 weeks. RESULTS: 1) The systolic and diastolic blood pressure were decreased from 170.0+/-13.0/104.0+/-6.0mmHg to 144.0+/-13.3/88.0+/-5.6mmHg(p<0.01), but the heart rate and body weight were independant of terazosin administration. 2) Total cholesterol was decreased significantly from 209.9+/-33.5mg/dL to 194.6+/-30.1mg/dL after 12 weeks treatment(p<0.05), triglyceride was decreased significantly from 185.4+/-37.0mg/dL to 168.9+/-35.0mg/dL(p<0.05). and LDL-cholesterol was decreased significantly from 134.5+/-31.9mg/dL to 122.7+/-29.9mg/dL(p<0.05), but HDL-cholesterol was increased significantly from 37.8+/-5.6mg/dL to 40.6+/-5.5mg/dL(p<0.05). 3) The adverse effects of terazosin were dizziness in 2, headache in 2, asthenia in 1, peripheral edema in 1 and skin rash in 1 patient, but were not troublesome enough to stop medication. CONCLUSIONS: Terazosin 1-4mg once daily regimen was effective and safe as an antihypertensive agent, and moreover terazosin has favorable effects on serum lipids.
Asthenia
;
Blood Pressure*
;
Body Weight
;
Cholesterol
;
Dizziness
;
Edema
;
Exanthema
;
Headache
;
Heart Rate
;
Humans
;
Hypertension*
;
Triglycerides
10.A Case of Anterior Cervical Lipoma Mimicking Thyroid Nodule
Yong Keol YOO ; Dong Seok LEE ; Chul Hun JUNG ; Ock Chan LEE ; Ho Jung KIM ; In Soon KIM ; You Hern AHN ; Mok Hyun KIM ; On Koo CHO
Journal of Korean Society of Endocrinology 1994;9(1):32-34
Lipomas are among the most common of all benign neoplasma and occur more frequently over the back, between the shoulders, and on the back of the neck. They are usually subcutaneous in origin, and characteristically multilobulated masses of fatty tissue that vary from small nodules to large masses weighing several kilograms.A mass in the anterior part of the neck may be initially thought to be thyroid nodules and then other cervical masses should be considered. Ultrasonographic examination of benign lipoma demonstrates solid and echogenic mass and may differentiate nonthyroid from thyroid masses. When lipoma is clinically suspected, the use of CTs can establish the correct diagnosis without the use of thyroid hormone suppression or the need for urgent surgery.We experienced a case of anterior cervical mass in a 51-year-old male patient presenting a non-tender and soft mass rapidly growing for recent several months and moved with swollowing, and diagnosed his case as benign lipoma using ultrasonography, computed tomographic scan, and fine niddle asperation biopsy and therefore when we encounter patients with anterior neck mass, we should consider benign lipoma mimicking thyroid nodule.
Adipose Tissue
;
Biopsy
;
Diagnosis
;
Humans
;
Lipoma
;
Male
;
Middle Aged
;
Neck
;
Shoulder
;
Thyroid Gland
;
Thyroid Nodule
;
Ultrasonography