Correlation analysis of lipid metabolism and heart rate deflection point in 7-12-year old students residing at high altitude

Objective To explore the suitable load of endurance training for primary school students with different BMI levels living in 3 200 m plateau, and to provide guidance for exercise and weight control for children residing in high altitudes. Methods The heart rate deflection point (HRDP) and HRDPspeed of 7-12-year-old students residing at high altitude were evaluated by using the site Conconi test. The serum lipid metabolism level was detected by ELISA. The correlation between HRDP and lipid metabolism was analyzed by Pearson correlation analysis. Results The level of leptin, adiponectin, total cholesterol (TC) and triglycerides (TG) in obesity group was highest, follow by the overweight group, normal weight and under-weight group ( F = 3.75-24.12, P 0.05) . Conclusion It is suggested that HRDP and lipid metabolism may be signcficantly correlated with BMI in students aged 7-12 years at different BMI levels in plateav and the above indicators can be used as an effective means to evaluate aerobic exercise endurance capacity of healthy adults at plateau. 【摘要】 目的 探究世居 3 200 m 髙原不同体质量指数 (BMI) 水平小学生耐力训练的适宜负荷, 为世居髙原人群体育健 身及运动减肥提供指导性建议。 方法 采用场地 Conconi 测试评估塔什库尔干县 273 名不同BMI水平的 7〜12 岁世居髙 原学生心率偏离点 (heart rate deflection point, HRDP) 及 HRDPspeed, 通过ELISA法检测受试者血清脂代谢水平, 采用 Pearson 相关分析法讨论HRDP与脂代谢水平的关联性。 结果 不同年级肥胖组瘦素 (LEP)、脂联素 (ADPN)、总胆固醇 (TC) 及三酰甘油 (TG) 水平均髙于其他组, 超重组亦均髙于正常组及消瘦组 ( F =3.75~24.12, P 值均 0.05)。 结论 世居髙原不同 BMI 水平的 7〜12 岁学生 HRDP 与脂代谢可能存在显著关联, 可作为评估世居髙原健康成人有氧运动 耐力能力的有效手段。