Influence of Common Subject Training on Bone Metabolism Indexes and Bone Mineral Density of Recruits

WU Lei; LI Hongtao; ZHANG Yongdong; ZHANG Xiuqin; LI Jiarui; HUANG Pingbo; YU Mingliang

doi:10.13730/j.issn.2097-2148.2025.10.012

Abstract：Objective To investigate the influence of common subject training on bone metabolism indexes and bone mineral density(BMD)of recruits.Methods A total of 149 recruits enlisted in September 2024 from a certain Armed Police Force unit were randomly selected.Before participating in common subject training,they filled in the general situation questionnaire,and body mass index(BMI)was calculated,serum calcium,serum inorganic phos-phorus,25-hydroxyvitamin D(25-OH-D),β-C-terminal telopeptide of type 1 collagen(β-CTx),bone alkaline phos-phatase(B-ALP),total procollagen type 1 amino-terminal propeptide(TP1NP)levels were measured,and BMD,T value,Z value and relative risk of fracture(RRF)were measured by dual energy X-ray absorptiometry,the above sur-vey and index detection were carried out again at the end of the common subject of new training.Results After 3 months of common subject training,the age and physical exercise ratio of recruits were higher than those before train-ing,and the body weight and BMI were lower than those before training,and the differences were statistically signifi-cant(all P＜0.05).In terms of serological indicators,the levels of B-ALP,TP1NP and β-CTx of recruits after training were significantly higher than those before training,and the levels of serum calcium,serum inorganic phos-phorus and 25-OH-D were significantly lower than those before training(all P＜0.001).In terms of BMD indexes,BMD,T value and Z value of recruits after training were higher than those before,and RRF was lower than that be-fore training(all P＜0.05),but there was no significant difference in the diagnosis results of each grade of BMD compared with that before training(P＞0.05).Conclusion Common subject training can induce high turnover of bone metabolism in recruits,that is,the bone resorption index and bone formation index are increased,the serum cal-cium,inorganic phosphorus and 25-OH-D significantly decreased,and the BMD increased.