Analysis on the correlation between changes of waist circumference and blood lipids in military pilots and intervention suggestions
10.3760/cma.j.cn113854-20231016-00098
- VernacularTitle:军事飞行员腰围变化趋势与血脂相关性分析及干预建议
- Author:
Zhiying LUO
1
;
Jun LIU
;
Weifang WANG
;
Chao CHENG
;
Jie ZOU
;
Yanchao TANG
;
Yanqiu GONG
;
He ZHANG
Author Information
1. 空军杭州特勤疗养中心疗养三区健康管理科，杭州 310000
- Publication Type:Journal Article
- Keywords:
Waist circumference;
Blood fat;
Health interventions;
Military pilots
- From:
Chinese Journal of Aerospace Medicine
2024;35(3):187-192
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To provide basis for personalized health interventions for military pilots by analyzing the longitudinal variation trend of waist circumference and its correlation with BMI and lipid metabolism indicators among military pilots.Methods:A retrospective analysis was used on the base of collecting the physical examination data of 323 pilots who had been consecutively recuperated for 3 times and completed 3 health indicator examinations in Air Force Healthcare Center for Special Services Hangzhou from January of 2017 to January of 2022. The pilots were divided into waist circumference <85 cm group, ≥85-90 cm group, and ≥90 cm group. According to their waist circumference change trend, they were divided into increased group (difference of waist circumference >0 cm) and decreased group (difference of waist circumference ≤0 cm). According to the 5-year change rate of waist circumference (Δ5), they were divided into waist circumference relative increased group (Δ5>3%), relative stable group (-3%≤Δ5≤3%), and relative decreased group (Δ5<-3%). The stratification of different waist circumference, the 5-year change rate of waist circumference and BMI, blood lipid indexes and abnormal rate of hyperlipidemia were compared. Waist circumference was measured and determined according to the relevant standards for flying personnel and adults.Results:①The mean waist circumference of 323 pilots was close to the value of pre-central obesity. The mean BMI had reached the overweight standard, and the mean TG and TC were at high end of normal values.②During the 5-year period, the values of blood lipid metabolism indicators were repeatedly measured 3 times, and the mean values of TG, TC, and LDL-C showed an increasing trend, with significant differences ( F=7.39, 9.49, 3.67, P=0.001,<0.001, =0.026) and the mean values of TG and TC of the third measurement had approached to high limit. ③The results of BMI, TG in 3 measurements, LDL-C in the first and third measurements, TC in the first measurement and the incidence of hyperlipidemia were all increased with the increase of waist circumference and the differences were significant ( F=3.06-133.39, χ2=9.08-22.99, all P<0.05); HDL-C decreased with the increase of waist circumference, with significant differences ( F=6.32, 9.78, 10.86, P=0.002, <0.001, <0.001). The mean BMI of the ≥85-90 cm group reached the overweight level in the 3 measurements. The mean values of TG and TC in the first 2 measurements were at high end of normal value, but the mean values in the third measurement were higher than the normal range. The mean values of BMI, TG, and TC in ≥90 cm group were all within the abnormal range. ④ The 5-year change rate of BMI and LDL-C in the waist circumference increased group were higher than those in the waist circumference decreased group ( F=26.02, 14.95, both P<0.001). ⑤The waist circumference relative stable and relative increased group had a higher incidence of new hyperlipidemia, with 27 cases (21.77%) and 24 cases (20.00%) respectively. The waist circumference relative decreased group had the highest improvement rate of hyperlipidemia in 5 cases (6.33%), but the difference was not significant (all P>0.05). Conclusions:The abnormal rates of waist circumference, BMI, and blood lipids in military pilots are relatively high and show an increasing trend. The changes in waist circumference are closely related to BMI and blood lipids, and maintaining waist circumference within a normal range helps to maintain stability of blood lipid metabolism.
