The Effect of Nutrition Education on Visceral Fat Reduction and Diet Quality in Postmenopausal Women

폐경 여성의 내장지방 및 식사의 질에 미치는 영양 교육의 효과

  • Baek, Young-Ah (Department of Nutritional Science and Food Management, Ewha Womans University) ;
  • Kim, Ki-Nam (Department of Nutritional Science and Food Management, Ewha Womans University) ;
  • Lee, Yo-A (Department of Nutritional Science and Food Management, Ewha Womans University) ;
  • Chang, Nam-Soo (Department of Nutritional Science and Food Management, Ewha Womans University)
  • 백영아 (이화여자대학교 건강과학대학 식품영양학과) ;
  • 김기남 (이화여자대학교 건강과학대학 식품영양학과) ;
  • 이요아 (이화여자대학교 건강과학대학 식품영양학과) ;
  • 장남수 (이화여자대학교 건강과학대학 식품영양학과)
  • Published : 2008.10.31

Abstract

This study investigated the effects of the nutrition education on body weight, visceral fat and diet quality in the postmenopausal women. The subjects (n = 101) were randomly divided into two groups: Nutrition education + Exercise (NEE) group (n = 51) and Exercise only (EO) group (n = 50). Nutrition education was consisted of counseling in portion control, food selection for low carbohydrate, high fiber food items and for the improvement in micronutrient intakes and diet quality. After 6 months, the reduction in the body weight and visceral fat area was significantly greater in the NEE than in the EO group. The NEE subjects were further divided into two groups according to the amount of visceral fat area reduction; high visceral fat area loss (HVL) group with a visceral fat area reduction 2.35% or greater and low visceral fat area loss (LVL) group with a reduction less than 2.35%. In the HVL group, the reduction in body weight, BMI, percent body fat, waist to hip ratio and visceral fat area was significantly greater than that in the LVL group. We observed a significant increase in the serum HDL-cholesterol level and a decrease in systolic blood pressure, fasting blood sucrose, total and LDL-cholesterol levels in the HVL group compared to the LVL group. The energyadjusted protein, fiber, calcium, vitamin $B_6$, vitamin C, vitamin E intakes were significantly increased in the HVL compared to LVL group. The index of nutritional quality (INQ) and mean adequacy ratio (MAR) were also increased in the HVL group compared to the LVL group. These results show that our nutrition education program was an effective intervention measure for the reduction of body weight and visceral fat, blood pressure, glucose and lipid levels in the blood and also for the improvement of nutrient intake and diet quality in postmenopausal women who are overweight.

본 연구에서는 6개월간 폐경 여성을 대상으로 영양교육과 파워 워킹 프로그램을 실시한 영양교육군, 영양 교육 없이 파워 워킹 프로그램만 실시한 대조군으로 나눠 체중조절 프로그램을 실시 하였다. 그 결과, 두 군 모두 체중과 체질량 지수, 체지방량과 내장지방이 유의적으로 감소하였으나, 영양교육을 실시한 영양교육군에서 체중 감소율이 더 크게 나타났으며, 특히 폐경 여성들에게 문제 시 되고 있는 내장지방의 변화율이 더 유의적으로 감소하는 긍정적인 결과를 보였다. 또한 본 연구에서는 영양교육군 내에서 내장지방변화율에 따라 내장지방 감소율이 큰 군 (HVL group)과 내장지방 감소율이 적은 그룹 (LVL group)으로 나누어 체중조절 프로그램의 효과와 관련된 요인을 분석하였다. 그 결과 내장지방 감소율이 컸던 군에서 체중, BMI, 체지방, 복부지방, 내장지방 등의 체성분들의 변화율이 더 크게 나타났다. 혈압 및 혈액 성분에서는 수축기, 이완기 혈압과 총콜레스테롤, LDL 콜레스테롤, 중성지방, 동맥 경화 지수의 개선 정도가 더 큰 결과를 보였다. 또한 내장지방 감소율이 컸던 군이 내장지방 감소율이 적은 군에 비해 단백질, 칼슘, 비타민C의 INQ와 칼슘, 비타민 $B_1$, 비타민 $B_2$, 비타민 C의 MAR도 유의적으로 증가하여 식사의 질이 더 개선되었음을 알 수 있었다. 또한 단백질의 영양밀도 변화율은 체지방 분포의 변화율과 음의 상관관계를 나타낸 반면, 탄수화물 영양밀도의 변화율은 양의 상관관계를 나타내었고, 비타민 A 영양밀도 변화율은 총 콜레스테롤, LDL-콜레스테롤, 동맥경화 지수 변화율과 음의 상관관계를 보여, 영양교육에 따른 신체계측치 및 체성분의 변화가 영양소 섭취 변화와 관련이 있음을 보여주었다. 이는 영양 교육 및 중재에 있어 실천의 중요성을 강조하는 것으로 이를 위해서는 폐경 여성들의 대사적 특성과 더불어 생활 습관을 이해하고 만성 질병을 예방하고 올바른 식습관을 통해 건강한 삶을 유지할 수 있도록 식사의 균형성, 다양성을 포함한 권장 식사 지침을 제시하고, 적당한 식품 섭취량을 포함한 종합적인 프로그램을 개발하여야 할 것이다. 또한 이러한 페경 여성을 위한 전문적이며 체계적인 프로그램을 통해 폐경 이후 체중 및 체지방 증가를 예방하고, 나아가 만성질병을 예방, 관리할 수 있을 것으로 사료된다.

Keywords

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