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目的了解南阳地区回族6~15岁中小学生躯干、四肢脂肪与总体脂肪关系的年龄变化特点,为指导学生进行科学锻炼提供依据。方法采用身体成分分析仪对南阳市9所回族学校6~15岁中小学生进行体成分测量,对所得数据进行统计学处理。结果南阳市回族6~15岁期间女生脂肪率及躯干脂肪量均高于男生,男生脂肪率最高为16.6%,女生最高为28.0%。6~9岁男生脂肪量高于女生,10~15岁女生脂肪量高于男生,且男、女生脂肪率及脂肪量在10岁以后性别差异有统计学意义(P值均<0.05)。南阳市回族6~15岁男生和6~11岁女生躯干脂肪量、上肢脂肪量、下肢脂肪量与总脂肪量具有高度相关性(r值均>0.9),但相关均无统计学意义(P值均>0.05)。但12~15岁女生躯干脂肪量与总脂肪量具有高度相关性(r值均>0.9),且均有统计学意义(P值均<0.05);而上肢、下肢脂肪量与总脂肪量仅具有中度相关性(0.50.05)。结论男女生总脂肪量与各部位脂肪量存在年龄和性别差异;通过腹部皮褶厚度能准确推测南阳回族12岁后女生的总脂肪量。
Objective To understand the age characteristics of the relationship between body fat, total body fat and fat of primary and secondary school students aged 6 ~ 15 in Nanyang District, so as to provide basis for guiding students to conduct scientific exercises. Methods The body composition analyzer was used to measure the body composition of primary and high school students from 9 to 15 Hui nationality schools in Nanyang City. The data were statistically processed. Results The female fat rate and body fat percentage of Hui girls aged 6-15 years were higher than boys in Nanyang. The highest fat percentage was 16.6% and the highest was 28.0%. The fat mass of boys aged 6 ~ 9 was higher than that of girls. The fat mass of girls aged 10 ~ 15 was higher than that of boys, and there was significant difference in fat rate and fat mass between male and female after 10 years of age (all P <0.05). The body fat mass, upper body fat mass, lower extremity fat mass and total fat mass of Hui boys and girls aged 6 ~ 11 in Nanyang were highly correlated (r> 0.9), but the correlation was not significant Value> 0.05). However, there was a significant correlation between trunk fat mass and total fat mass in 12 ~ 15-year-old girls (r = 0.9), both of which were statistically significant (P <0.05), while those of upper limbs, lower limbs and total fat mass There was a moderate correlation (0.5 0.05). Conclusions The total amount of fat of fathers and girls and the amount of fat in each part have age and gender difference. The total amount of fat of 12-year-old girls in Nanyang Hui nationality can be accurately estimated by the thickness of abdomen skinfold.