摘要
测定亚热带地区126例12～17岁健康在校青春期少女夏秋季和冬季的基础代谢,其中32例作月经周期代谢观察,实验采用间接式开放测定法,用Douglas袋收集气体,以Beckman OM-11氧分析仪及LB-2二氧化碳分析仪进行呼出气样分析,按标准的基础代谢测定条件进行。结果为:1。少女BMR(基础代谢率)随性征发育程度的增加而下降。2.月经来潮组与未来潮组BMR以kJ·kg^(-1)·h^(-1)表示时,差异有高度显著意义,未来潮组比已来潮组高8.3％。3.BMR受月经周期影响,月经期比月经前下降7.2％。4。广州地区12～17岁青春期少女BMR有随年龄组增加而逐渐下降的趋势,其BMR分别为:164.64、157.49、152.13、147.95、143.64、和137.53 kJ/·m^(-1)·h^(-1),其中12与13岁组间及它们与各高年龄组间的差异有显著意义。5.广州地区青春期少女BMR有季节变化,冬季比夏秋季节高3.5％。6.青春期少女BMR受多因素综合作用的影响,其中体表面积、体脂及脉搏的联合作用对BMR影响较大。本文对结果进行了对比与讨论。
The basal metabolism of 126 healthy adolescent girls aged from 12-17 living in Guangzhou are carefully measured over Summer-Autumn and Winter seasons. Of these 126 subjects 32 were determined the BM during the menstrual cycles. The open indirect calorimetry method was employed. All expired gas were collected in Douglas bags. Gas samples were carried out by Beckmen OM-11 oxygen analyser and LB-2 carbon dioxide analyser. The BMR results are:(1) The BMR of adolescent girls are gradually decreased as the index of secondary sexual appearance appeared. (2) When the energy expenditure expressed as kcal.kg-1.h^1, the difference of BMR is significantly at pre or post menarche. The BMR of pre-menarche is 8.3% higher than those of postmenarche. (3) BMR is influenced by menstrual cycles, shows a slight premenstrual rise and a 7.2% menstrual depression.( 4 ) The BMR of adolescent girls aged 12-17 in Guangzhou appeared a gradually decrease tendency with the growing process. The mean BMR values for aged from 12 to 17 were 164.64, 157.49, 152.13, 147.95,143.64,137.53 kJ.m-2.h-1 respectively The differences of BMR between aged 12 and 13 groups and the other age groups are statistical significant. This results are a littel (4.7-9.5%) lower than the figures of Fleish as compared with western count- rtes.( 5 ) There are seasonal changes of BMR for adolescent girls in Guangzhou. The BMR is 3.5% higher in Winter than in Summer-Autumn. (6) The BMR of adolescent girls are influenced by combined factors of surface area, body fat and pulse. The results are discussed.
出处
《营养学报》
CAS
CSCD
北大核心
1991年第3期252-258,共7页
Acta Nutrimenta Sinica
关键词
基础代谢
青春期少女
亚热带地区
basal metabolism adolescent girl subtropical area
