A Study on Body Composition and Symmetry in Male Cadets during Basic Military Physical Fitness Training
This research delves into the variations in body composition and symmetry among male cadets undergoing four months of basic military physical fitness training,aiming to establish a foundation for daily training.METHOD:Dual-energy X-ray absorptiometry was utilized to assess body composition in 25 healthy male participants during the training period.RESULTS:The right arm exhibited significantly higher bone area,bone mineral content,and bone density compared to the left arm(P＜0.05);no significant difference in fat content was observed between the left and right arms(P＞0.05).Right arm lean mass and overall mass were notably higher than the left arm(P＞0.05);right arm muscle content and overall mass were significantly greater than the left arm(P＜0.01).However,the right arm's fat percentage was significantly lower than the left arm(P＜0.01).No significant differences were found in the bone area,bone mineral content,bone density,fat content,muscle content,and fat percentage of the lower limbs(P＞0.05).The overall Z-score distribution revealed 76.9％within the range of 2 to-1,19.2％within the range of-1 to-2,and 3.8％below-2.CONCLUSION:Throughout basic physical fitness training,male cadets exhibit upper limb body composition discrepancies,while lower limb body composition remains consistent.Despite relatively good overall symmetry,a higher proportion of Z-scores in the moderate and high-risk ranges suggests potential low energy availability.Implementing effective measures is crucial to preventing adverse effects on long-term skeletal health.
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