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Hwi Ryun Kwon  (Kwon HR) 5 Articles
The Effects of Low-Calorie Diets on Abdominal Visceral Fat, Muscle Mass, and Dietary Quality in Obese Type 2 Diabetic Subjects.
Hee Jung Ahn, Youn Ok Cho, Hwi Ryun Kwon, Yun Hyi Ku, Bo Kyung Koo, Kyung Ah Han, Kyung Wan Min
Korean Diabetes J. 2009;33(6):526-536.   Published online December 1, 2009
DOI: https://doi.org/10.4093/kdj.2009.33.6.526
  • 2,386 View
  • 36 Download
  • 7 Crossref
AbstractAbstract PDF
BACKGROUND
Weight loss through low-calorie diets (LCDs) decreases visceral fat (VF). However, the effects on muscle mass, changes of dietary quality, and insulin sensitivity are unknown for Korean obese type 2 diabetic subjects. Therefore, this study examined such effects of LCDs. METHODS: A total of 30 obese type 2 diabetic subjects (body mass index, 27.0 +/- 2.2 kg/m2) were randomly assigned to an LCD or control group. Subjects on LCDs took 500~1,000 kcal fewer energy than their usual dietary intake (1,000~1,500 kcal/day) over the course of 12 weeks. The abdominal VF and femoral muscle mass were evaluated by computed tomography, and insulin sensitivity was assessed using an insulin tolerance test (Kitt; rate constant for plasma glucose disappearance, %/min). Dietary nutrient intake consumed by subjects was assessed by 3-day food records. RESULTS: The percent VF reduction was -23.4 +/- 17.2% in the LCD group and -9.8 +/- 11.8% in the control group after 12 weeks (P < 0.001, P = 0.002). However, significant decrease in femoral mass or proportional change of marcronutrient intake and mean adequacy ratio were not found in the LCD group, as compared to the control group. Insulin sensitivity improved in the LCD group, as compared to the control group (P = 0.040). CONCLUSION: LCD effectively improved insulin sensitivity and reduced abdominal VF without reduction of femoral muscle and dietary quality in obese type 2 diabetic subjects.

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  • The association between measurement sites of visceral adipose tissue and cardiovascular risk factors after caloric restriction in obese Korean women
    Hye-Ok Lee, Jung-Eun Yim, Jeong-Sook Lee, Young-Seol Kim, Ryowon Choue
    Nutrition Research and Practice.2013; 7(1): 43.     CrossRef
  • Effects of age on changes of body composition through caloric restriction in overweight and obese women
    Jung-Eun Yim, Young-Seol Kim, Ryowon Choue
    Journal of Nutrition and Health.2013; 46(5): 410.     CrossRef
  • The effects of weight loss by a low-calorie diet and a low-calorie plus exercise in overweight undergraduate students
    Gun-Ae Yoon, Hyun-Ho Ahn, Bo-Hae Park, Danbi Yoo, Sunmin Park
    Korean Journal of Nutrition.2012; 45(4): 315.     CrossRef
  • Effect of an abdominal obesity management program on dietary intake, stress index, and waist to hip ratio in abdominally obese women - Focus on comparison of the WHR decrease and WHR increase groups -
    Ji Won Lee, Sook Young Yoo, So Young Yang, Hyesook Kim, Seong Kyung Cho
    Korean Journal of Nutrition.2012; 45(2): 127.     CrossRef
  • The Evaluation of Workplace Obesity Intervention Program using Six Sigma Methodology
    Ji Yeon Kang, Ill Keun Park, Yun Kyun Chang, Sook Hee Sung, Yoo Kyoung Park, Sang Woon Cho, Yun Mi Paek, Tae In Choi
    The Korean Journal of Obesity.2011; 20(4): 193.     CrossRef
  • The Usefulness of an Accelerometer for Monitoring Total Energy Expenditure and Its Clinical Application for Predicting Body Weight Changes in Type 2 Diabetic Korean Women
    Ji Yeon Jung, Kyung Ah Han, Hwi Ryun Kwon, Hee Jung Ahn, Jae Hyuk Lee, Kang Seo Park, Kyung Wan Min
    Korean Diabetes Journal.2010; 34(6): 374.     CrossRef
  • The Effects of Low-Calorie Diets on Abdominal Visceral Fat, Muscle Mass, and Dietary Quality in Obese Type 2 Diabetic Subjects (Korean Diabetes J 2009;33:526-36)
    Won-Young Lee
    Korean Diabetes Journal.2010; 34(1): 66.     CrossRef
Relationship of Maximal Muscle Strength with Body Mass Index and Aerobics Capacity in Type 2 Diabetic Patients.
Hwi Ryun Kwon, Kyung Ah Han, Yun Hyi Ku, Hee Jung Ahn, Bo Kyung Koo, Kyung Wan Min
Korean Diabetes J. 2009;33(6):511-517.   Published online December 1, 2009
DOI: https://doi.org/10.4093/kdj.2009.33.6.511
  • 2,164 View
  • 29 Download
  • 4 Crossref
AbstractAbstract PDF
BACKGROUND
Combination fitness regimens (including aerobic and resistance exercises) are effective for improving cardio-respiratory fitness, reducing visceral fat and increasing insulin sensitivity in diabetic patients. The combination exercise intensity that a patient is capable of is limited by his or her aerobic capacity and one repetition maximum (1RM). We investigated the relationships between 1RM, aerobic exercise capacity and body mass index in patients with type 2 diabetes. METHODS: A total of 177 (men: 85, women: 92) diabetic subjects with HbA1c < or = 10% were enrolled. Muscle strength and 1RM were assessed bychest press (upper body) and leg press (lower body). We assessed aerobic capacity by VO2max and muscle mass by bioimpedance analysis. RESULTS: There was no correlation between 1RM and VO2max in type 2 diabetic patients (upper: P = 0.122, lower: P = 0.138 for men, and upper: P = 0.952, lower: P = 0.570 for women). However, 1RM was significantly correlated with muscle mass both in men and women (upper: r = 0.493, P < 0.001, r = 0.315, P = 0.002 lower: r = 0.437 P < 0.001, r = 0.307, P =0.003, respectively). There was also a significant correlation between 1RM and BMI. In obese male subjects with BMI > or = 25 kg/m2, we observed a significant correlation between muscle mass and BMI (r = 0.374, P = 0.032), but this correlation was not observed in women. CONCLUSION: Clinicians treating Korean type 2 diabetic subjects should recommend resistance exercise to their patients. In particular, obese women with diabetes may receive greater benefits by increasing muscle mass through resistance exercises.

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  • Evaluation of Muscle Strength and Endurance in Postmenopausal Women: A Cross-sectional Study
    Arati V Mahishale, Manali P Kulkarni
    Journal of South Asian Federation of Obstetrics and Gynaecology.2021; 13(3): 163.     CrossRef
  • The Correlations between Extremity Circumferences with Total and Regional Amounts of Skeletal Muscle and Muscle Strength in Obese Women with Type 2 Diabetes
    Hwi Ryun Kwon, Kyung Ah Han, Hee Jung Ahn, Jae Hyuk Lee, Gang Seo Park, Kyung Wan Min
    Diabetes & Metabolism Journal.2011; 35(4): 374.     CrossRef
  • The Effects of Aerobic/Resistance Exercise on Body Fat Mass, Muscle Strength and Endothelial Function in Korean Type 2 Diabetes mellitus Patients
    Kyung Wan Min
    Journal of Korean Diabetes.2011; 12(1): 6.     CrossRef
  • The Effects of Resistance Training on Muscle and Body Fat Mass and Muscle Strength in Type 2 Diabetic Women
    Hwi Ryun Kwon, Kyung Ah Han, Yun Hyi Ku, Hee Jung Ahn, Bo-Kyung Koo, Ho Chul Kim, Kyung Wan Min
    Korean Diabetes Journal.2010; 34(2): 101.     CrossRef
Maximal Muscle Strength Deteriorates with Age in Subjects with Type 2 Diabetes Mellitus.
Hwi Ryun Kwon, Yun Hyi Ku, Hee Jung Ahn, Ji Yun Jeong, Sang Ryol Ryu, Bo Kyung Koo, Kyung Ah Han, Kyung Wan Min
Korean Diabetes J. 2009;33(5):412-420.   Published online October 1, 2009
DOI: https://doi.org/10.4093/kdj.2009.33.5.412
  • 2,408 View
  • 22 Download
  • 5 Crossref
AbstractAbstract PDF
BACKGROUND
It is difficult to improve muscle strength with only aerobic exercise training in type 2 diabetes patients. Resistance training is effective for improving muscle mass, muscle strength and insulin sensitivity. One repetition maxima (1RM), or the maximum amount of weight a subject can lift in a single repetition, may be a useful unit for evaluating the results of resistance training in type 2 diabetic patients. This study was aimed to assess baseline values for 1RM in a sample of Korean type 2 diabetes mellitus patients that are scaled for intensity and load of exercise, and to assess the relationship of 1RM to age. METHODS: A total of 266 (male: 95, female: 171) Korean patients with type 2 diabetes mellitus were included in the study sample. Maximal muscle strength was assessed by measuring 1RM for each subject (KEISER, Fresno, CA, USA). Two different exercises were used to measure 1RM: the chest press for the upper extremities, and the leg press for the lower extremities. RESULTS: Both upper and lower values of 1RM decreased with age in men and women; upper 1RM: r = -0.454, P<0.001 in men, r = -0.480, P< 0.001 in women, lower 1RM: r = -0.569, P<0.001 in men, and r = -0.452, P<0.001 in women. Values of 1RM significantly decreased in men only after the age of 70. In women, values of 1RM continuously decreased after the age of 60. CONCLUSION: The maximal muscle strength of individuals with type 2 diabetes decreases with age. We believe that resistance training is especially beneficial for type 2 diabetes mellitus patients after the sixth decade of life.

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  • The Effects of Floor-seated Exercise Program on Physical Fitness, Depression, and Sleep in Older Adults: A Cluster Randomized Controlled Trial
    Min-Jung Choi, Kyeong-Yae Sohng
    International Journal of Gerontology.2018; 12(2): 116.     CrossRef
  • The Effects of Aerobic/Resistance Exercise on Body Fat Mass, Muscle Strength and Endothelial Function in Korean Type 2 Diabetes mellitus Patients
    Kyung Wan Min
    Journal of Korean Diabetes.2011; 12(1): 6.     CrossRef
  • The Correlations between Extremity Circumferences with Total and Regional Amounts of Skeletal Muscle and Muscle Strength in Obese Women with Type 2 Diabetes
    Hwi Ryun Kwon, Kyung Ah Han, Hee Jung Ahn, Jae Hyuk Lee, Gang Seo Park, Kyung Wan Min
    Diabetes & Metabolism Journal.2011; 35(4): 374.     CrossRef
  • The Effects of Resistance Training on Muscle and Body Fat Mass and Muscle Strength in Type 2 Diabetic Women
    Hwi Ryun Kwon, Kyung Ah Han, Yun Hyi Ku, Hee Jung Ahn, Bo-Kyung Koo, Ho Chul Kim, Kyung Wan Min
    Korean Diabetes Journal.2010; 34(2): 101.     CrossRef
  • Relationship of Maximal Muscle Strength with Body Mass Index and Aerobics Capacity in Type 2 Diabetic Patients
    Hwi Ryun Kwon, Kyung Ah Han, Yun Hyi Ku, Hee Jung Ahn, Bo Kyung Koo, Kyung Wan Min
    Korean Diabetes Journal.2009; 33(6): 511.     CrossRef
Association Between Volume of Bowls and the Dietary Intakes in Subjects with Type 2 Diabetes.
Hee Jung Ahn, Bo Kyung Koo, Ji Yeon Jung, Hwi Ryun Kwon, Mi Yeon Chung, Yun Hyi Ku, Jin Taek Kim, Kyung Ah Han, Kyung Wan Min
Korean Diabetes J. 2009;33(4):335-343.   Published online August 1, 2009
DOI: https://doi.org/10.4093/kdj.2009.33.4.335
  • 2,545 View
  • 23 Download
  • 6 Crossref
AbstractAbstract PDF
BACKGROUND
The results of previous studies suggest that portion size is a major factor dictating dietary energy intake. We investigated the relationship between frequencies of rice meals, bowl volumes, and dietary energy intake in a sample of patients with type 2 diabetes. METHODS: A total of 203 type 2 diabetes patients were enrolled in the study. A one-week food diary was collected from each patient and used to assess the types of meal consumed as well as the context of consumption. The volumes of the eating vessels (rice, soup and side dish bowls) used by each patient were obtained by comparisons to measuring cylinders, and dietary energy and macronutrient intake were estimated for each patient by consulting three-day dietary records. RESULTS: The mean age of the 203 subjects (male: 76, female: 127) was 53.9 +/- 9.1 years and the average body mass index (BMI) was 25.6 +/- 4.2 kg/m2. Among the subjects who ate three times per day, 96.4% consumed rice more than twice out of three meals. The median volume of rice bowls used by patients was 350 cc, of soup bowls was 530 cc and of side dish bowls was 260 cc. Portion size, as estimated by rice bowl volume, was not associated with BMI. Male subjects tended to eat out of larger rice and soup bowls (P < 0.001). Portion size was correlated with energy intake from rice (P = 0.021), but not with total energy intake (kcal/kg/day), especially in male subjects. CONCLUSION: Portion size of rice bowl was correlated with energy intake from rice, but not with total energy intake in male subjects with type 2 diabetes. To design effective meal planning methods for patients with type 2 diabetes, further prospective studies are warranted to investigate causative relationships between portion size andmetabolic conditions as well as variation by gender.

Citations

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  • Trends in adherence to dietary recommendations among Korean type 2 diabetes mellitus patients
    Kyong Park
    Nutrition Research and Practice.2015; 9(6): 658.     CrossRef
  • Small Rice Bowl-Based Meal Plan for Energy and Marcronutrient Intake in Korean Men with Type 2 Diabetes: A Pilot Study
    Hee Jung Ahn, Kyung Ah Han, Jin Young Jang, Jae Hyuk Lee, Kang Seo Park, Kyung Wan Min
    Diabetes & Metabolism Journal.2011; 35(3): 273.     CrossRef
  • Nutrients and Dish Intake by Fasting Blood Glucose Level
    Jihyun Choi, Hyun-Kyung Moon
    The Korean Journal of Nutrition.2010; 43(5): 463.     CrossRef
  • Small Rice Bowl-Based Meal Plan versus Food Exchange-Based Meal Plan for Weight, Glucose and Lipid Control in Obese Type 2 Diabetic Patients
    Hee-Jung Ahn, Kyung-Ah Han, Hwi-Ryun Kwon, Bo-Kyung Koo, Hyun-Jin Kim, Kang-Seo Park, Kyung-Wan Min
    Korean Diabetes Journal.2010; 34(2): 86.     CrossRef
  • The Effects of Small Sized Rice Bowl on Carbohydrate Intake and Dietary Patterns in Women with Type 2 Diabetes
    Hee-Jung Ahn, Yu-Kyung Eom, Kyung-Ah Han, Hwi-Ryun Kwon, Hyun Jin Kim, Kang Seo Park, Kyung-Wan Min
    Korean Diabetes Journal.2010; 34(3): 166.     CrossRef
  • The Small Rice Bowl-Based Meal Plan was Effective at Reducing Dietary Energy Intake, Body Weight, and Blood Glucose Levels in Korean Women with Type 2 Diabetes Mellitus
    Hee Jung Ahn, Kyung Ah Han, Hwi Ryun Kwon, Kyung Wan Min
    Korean Diabetes Journal.2010; 34(6): 340.     CrossRef
Bowl-Based Meal Plan versus Food Exchange-Based Meal Plan for Dietary Intake Control in Korean Type 2 Diabetic Patients.
Hee Jung Ahn, Boo Kyung Koo, Ji Yeon Jung, Hwi Ryun Kwon, Hyun Jin Kim, Kang Seo Park, Kyung Ah Han, Kyung Wan Min
Korean Diabetes J. 2009;33(2):155-163.   Published online April 1, 2009
DOI: https://doi.org/10.4093/kdj.2009.33.2.155
  • 2,347 View
  • 28 Download
  • 6 Crossref
AbstractAbstract PDF
BACKGROUND
The food exchange-based meal plan is effective in controlling dietary energy intake with a macronutrient balance. However, it is difficult to practice for relatively low-literacy patients. As an alternative, we developed a system employing a standardized-sized bowl and investigated its effectiveness on achieving proper energy intake and macronutrient composition and patient compliance, compared to the conventional food exchange system in Korean type 2 diabetes patients. METHODS: Eighty subjects with type 2 diabetes were assigned to both the novel bowl-based meal plan group (BG) and the food exchange-based meal plan group (ExG). BG received limited simple instructions for the plan. Time spent for plan instruction was 10 min for BG and 40 min for ExG. Dietary energy and macronutrient intake were estimated with 3-day dietary records and patient comprehension of the plan was estimated with a 5-point Likert scale. RESULTS: After 12 weeks, dietary energy compliance showed no difference between the groups (BG: 103 +/- 10%, ExG: 101 +/- 17%). Both groups showed significant reduction in carbohydrate and protein intake and there was no difference in the proportion of carbohydrate, protein and fat in energy intake between the groups despite the shorter instruction time for BG. Following the instruction period, there was no difference in the understanding score between the groups. CONCLUSION: This bowl-based plan was equally effective as the food exchange-based plan in controlling dietary energy intake and macronutrient composition, as well as patient comprehension and compliance. Our novel plan may allow for more cost-effective methods in terms of time needed for plan instruction.

Citations

Citations to this article as recorded by  
  • Practical Diet Education for Patients with Type 2 Diabetes: Tips for Physicians
    Choong Hee Kim, Jun Sung Moon
    The Journal of Korean Diabetes.2016; 17(4): 253.     CrossRef
  • Effects of Nutrition Education and Personalized Lunch Service Program for Elderly at Senior Welfare Center in Jeonju
    Jeong-Sook Bae, Mi-Hyun Kim, Sook-Bae Kim
    Korean Journal of Community Nutrition.2013; 18(1): 65.     CrossRef
  • Effects of Chronic Disease Management Based on Clinics for Blood Pressure or Glycemic Control in Patients with Hypertension or Type 2 Diabetes Mellitus
    Won Cheong, Jun Yim, Dae-Kyu Oh, Jeong-Soo Im, Kwang Pil Ko, Yun Mi Kim
    Journal of agricultural medicine and community health.2013; 38(2): 108.     CrossRef
  • Small Rice Bowl-Based Meal Plan versus Food Exchange-Based Meal Plan for Weight, Glucose and Lipid Control in Obese Type 2 Diabetic Patients
    Hee-Jung Ahn, Kyung-Ah Han, Hwi-Ryun Kwon, Bo-Kyung Koo, Hyun-Jin Kim, Kang-Seo Park, Kyung-Wan Min
    Korean Diabetes Journal.2010; 34(2): 86.     CrossRef
  • Nutrients and Dish Intake by Fasting Blood Glucose Level
    Jihyun Choi, Hyun-Kyung Moon
    The Korean Journal of Nutrition.2010; 43(5): 463.     CrossRef
  • The Effects of Small Sized Rice Bowl on Carbohydrate Intake and Dietary Patterns in Women with Type 2 Diabetes
    Hee-Jung Ahn, Yu-Kyung Eom, Kyung-Ah Han, Hwi-Ryun Kwon, Hyun Jin Kim, Kang Seo Park, Kyung-Wan Min
    Korean Diabetes Journal.2010; 34(3): 166.     CrossRef

Diabetes Metab J : Diabetes & Metabolism Journal