若年男女における食事量の過小・過大評価と身体的,心理的要因および生活習慣との関係  [in Japanese] Relationship between Under and Overestimation of Energy Intake and Physical and Psychological Factors and Lifestyle Characteristics in Young Japanese Men and Women  [in Japanese]

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Abstract

日本人若年男性37名,女性174名を対象に,実測した基礎代謝量を基準にしてタイムスタディ法で算出したエネルギー消費量と,食物摂取頻度調査(FFQg)より得られたエネルギー摂取量との差を△エネルギー量として,食事量の過小・過大評価の実態と要因について検討した. 本研究では,若年男女ともに,エネルギー摂取量はエネルギー消費量より有意に(p<0.01)低く評価された.エネルギー摂取量の過小・過大評価の平均値(△エネルギー量/エネルギー消費量×100)は男性-26±20%,女性-12±26%となっており,女性は男性よりも過小評価率が有意に(p<0.01)低かった.Body mass index(BMI)と △エネルギー量の間には,男女とも有意な(男性p<0.01,女性p<0.001)負の相関関係(男r=-0.463,女r=-0.360)がみられ,BMIが高値の者ほど食事量を過小に見積もっていた.また女性の「やせたい」という意識は食事量の過小評価量を有意に(p<0.01)大きくさせていた.同様に「体を動かす心がけ」という意識は女性の過小評価量を有意に(p<0.05)大きくさせていた.逆に「栄養バランス」を意識する女性は過小評価量が有意に(p<0.05)小さくなっていた.同様に「朝食を食べる」「欠食をしない」女性や「夕食時間を決めている」男性は,過小評価量が有意に(それぞれp<0.05,p<0.01,p<0.001)小さくなっていた.これらの結果から,食事量の過小・過大評価には身体的要因や社会的望ましさといった心理的要因と共に,食に関するライフスタイルが関わっていることが示唆された.We examined the relationship between under and overestimation of dietary intake and the predictive factors in 37 Japanese men and 174 Japanese women aged 19-21y. Total energy expenditure (TEE) was calculated by using a time study method which measured basal metabolic rate. Total energy intake (TEI) was estimated by a food frequency questionnaire (FFQg). We used "△energy " (total energy intake - total energy expenditure ) to represent the relationship. Both the men and the women, reported TEI was significantly lower than TEE (p<0.01, p<0.01, respectively). The average underestimation rate (△energy / TEE × 100 ) was -12±26% in the women and -26±20% in the men. The magnitude of underestimation in the women was significantly smaller than the men (p<0.01). Body mass index (BMI) was negatively correlated with △energy in both the men (r=-0.463) and the women (r=-0.360) (p<0.01, p<0.001, respectively). In the women, the magnitude of underestimation significantly increased due to a "desire for slenderness" and an "attempt to be physically active" (p<0.01, p<0.05, respectively), in contrast, decreased due to an "interest in dietary nutritional balance", eating "breakfast daily" and "no meal-skipping behavior" (p<0.05, p<0.05, p<0.01, respectively). In addition, the magnitude of underestimation significantly decreased in the men due to "having regular dinnertimes" (p<0.001). These results suggest that under and overestimation of dietary intake are associated with the physical factor BMI and the psychological factors of social desirability and dietary habit.

"We examined the relationship between under and overestimation of dietary intake and the predictive factors in 37 Japanese men and 174 Japanese women aged 19-21y. Total energy expenditure (TEE) was calculated by using a time study method which measured basal metabolic rate. Total energy intake (TEI) was estimated by a food frequency questionnaire (FFQg). We used ""△energy "" (total energy intake - total energy expenditure ) to represent the relationship. Both the men and the women, reported TEI was significantly lower than TEE (p<0.01, p<0.01, respectively). The average underestimation rate (△energy / TEE × 100 ) was -12±26% in the women and -26±20% in the men. The magnitude of underestimation in the women was significantly smaller than the men (p<0.01). Body mass index (BMI) was negatively correlated with △energy in both the men (r=-0.463) and the women (r=-0.360) (p<0.01, p<0.001, respectively). In the women, the magnitude of underestimation significantly increased due to a ""desire for slenderness"" and an ""attempt to be physically active"" (p<0.01, p<0.05, respectively), in contrast, decreased due to an ""interest in dietary nutritional balance"", eating ""breakfast daily"" and ""no meal-skipping behavior"" (p<0.05, p<0.05, p<0.01, respectively). In addition, the magnitude of underestimation significantly decreased in the men due to ""having regular dinnertimes"" (p<0.001). These results suggest that under and overestimation of dietary intake are associated with the physical factor BMI and the psychological factors of social desirability and dietary habit."

Journal

  • Kawasaki medical welfare journal

    Kawasaki medical welfare journal 16(1), 109-119, 2006

    Kawasaki University of Medical Welfare

Cited by:  2

Codes

  • NII Article ID (NAID)
    110004727305
  • NII NACSIS-CAT ID (NCID)
    AN10375470
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • Journal Type
    大学紀要
  • ISSN
    09174605
  • NDL Article ID
    8095755
  • NDL Source Classification
    ZE5(社会・労働--社会問題・社会保障)
  • NDL Call No.
    Z6-3791
  • Data Source
    CJPref  NDL  NII-ELS  IR 
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