1 0 0 0 OA ボディイメージとセルフイメージ(第2報) : 体重の課題認知と自己評価的意識の関係
- 著者
- 竹内 聡 早野 順一郎 堀 礼子 向井 誠時
- 出版者
- 一般社団法人 日本心身医学会
- 雑誌
- 心身医学 (ISSN:03850307)
- 巻号頁・発行日
- vol.33, no.8, pp.697-703, 1993-12-01 (Released:2017-08-01)
Social pressure for thinness has been emphasized as a cause of recent increase in the prevalence of eating disorders. We have previously found that female junior-high-school students are strongly possessed with their body weight (BW) and body physique and that their self-esteem is associated with their body image. However, only a little fraction of people actually suffer from eating disorders, indicating that individual differences in the reactivity to the social pressure are also important in the etiology of the disease. This study aimed to examine the hypothesis that the BW over'estimation is associated with low self-esteem independently of actual BW in adolescent females. We performed a questionnaire survey on the relationship between self-esteem and body image in 714 students (361 male, 353 female) in an urban coeducational public junior-high-school. The self-esteem was evaluated by means of Kajita's self-esteem scale. The body image was evaluated from the relationship between obesity index and an adjective expression of physique (fat, average, lean) selected by subjects. Based on the relationship between obesity index and adjective expression of physique, subjects were divided into three groups as follow : "over-estimators" were as- signed when "fat" was selected by subjects with an obesity index of < 0% and when "average" was selected by those with an obesity index of < -20% ; in the opposite cases assigned were "under-estimators"; and otherwise "approximate-estimators" were assigned. Additionally, the subjects in "appropriate-estimator" with an obesity index of < 0% were specially defined as "nonover-estimators". Cluster analysis performed on the responses to 23 items of the self-esteem scale showed that the items could be divided into three categories, which were respectively named "self-acceptance", "superiority", and "defense". The appropriate-estimators were 94.7 and 87.8% of male and fe-male students, respectively, whereas the under-estimators were 3.5 and O% and the over-estimators were 1.8 and 12.2%, respectively (p < 0.001). The frequency of over-estimator increased with advancing school grade in the female students (7.l%, 9.6%, and 19.0% for 1 st, 2 nd and 3 rd grade ; p < 0.018), but no significant difference was found in the male students. Analysis focused on the differences between the over- and non-over-estimators in the female subjects revealed that the over-estimators was lower in the self-acceptance score than the non-over-estimators (p=0.022), although no differences was found in the superiority or defense scores. Stepwise discriminant analysis revealed that self-acceptance was a significant discriminator between the two groups even when obesity index and school grade were forced to enter (p < 0.001). These results not only confirm our previous finding that female students desire their BW Iower than medically ideal / BW but also support the hypothesis that low self-acceptance may impair the acceptance of bodyimage and result in the over-estimation of BW in adolescent females.
1 0 0 0 OA 心拍変動解析の標準化の問題点
- 著者
- 向井 誠時 早野 順一郎
- 出版者
- Japanese Heart Rhythm Society
- 雑誌
- 心電図 (ISSN:02851660)
- 巻号頁・発行日
- vol.16, no.3, pp.217-224, 1996-05-31 (Released:2010-09-09)
- 参考文献数
- 8
- 被引用文献数
- 1 1
心拍変動解析の標準化のための基礎データとして, 心拍変動解析時の種々の要因が解析結果に与える影響を調べ, 次のことを明らかにした. (1) 不整脈処理時に行うデータ欠損部の補間処理はLF成分振幅の過大評価と, HF成分振幅成分の過少評価の原因となる. (2) 自己回帰スペクトル分析の次数を変化させたところ, LF成分, HF成分の振幅はともに16次以上で一定となる. (3) 呼吸周波数の減少は心拍数の変化を伴わずにHF成分の振幅を増加させることから, HF成分振幅は心臓迷走神経活動レベルとは独立に呼吸周波数の影響を受ける. (3) 心拍数が変化する時, R-R間隔による心拍変動の増減と瞬時心拍数による心拍変動の増減と一致しないことがある. (5) complex demodulation法は心臓自律神経活動の経時的変化の分析に適する.
1 0 0 0 中学生の体重イメージ : マスメディアの影響
- 著者
- 竹内 聡 早野 順一郎 堀 礼子 向井 誠時 藤浪 隆夫
- 出版者
- 一般社団法人 日本心身医学会
- 雑誌
- 心身医学 (ISSN:03850307)
- 巻号頁・発行日
- vol.33, no.8, pp.691-695, 1993
- 被引用文献数
- 6
Eating disorders are multidimensional disease, but recent increase of the disease is mainly explained by the effect of socio-cultural pressure for thinness. We suggested in a previous study of junior-high-school students that they are strongly affected by the socio-cultural pressure. Mass media is one of the most effective factors to spread the pressure. It is possible that the thin standards in female to be emphasized by mass media stimulate female to diet. However, no studies have ever tried to investigate the relationship between ideal body image of pubertal female and body size of models to be informed by mass media. Then we investigated real body weight, desirable body weight and appropriate body weight of 687 students (347 male, 340 female) in a public junior-high-school and compared three body weights with so-called standard body weight ((height-100)xO.9), and cosmetic body weight (height-110). In addition to these, in female three body weights were compared with idol talent's body weight (n=109) which was printed in student-oriented entertainment magazines. The purpose of this paper is to identify what weight they think is standard and ideal, and how different body weight image is between males and females. There was no difference between actual, appropriate and desirable body weight in male students. In female students, there was no difference between actual and appropriate body weight, but desirable body weight was lower than actual and appropriate body weight and was inclined toward idol talent's body weight. Neither the so-called standard body weight nor the cosmetic body weight was similar to appropriate body weight in either sexes. We may, therefore, reasonably conclude that only female students have much difference between actual and ideal body weight images and that information from mass media affects their ideal image. This may be related to the fact that many eating disorders are found in females but rare in males. As a countermeasure of recent increase of eating disorders, we consider that it is insufficient to treat them with individual psychopathology and that it is necessary to discuss socio-cultural problems.