Study on Male Body Composition,Bone Density,and Symmetry During Military Physical Training Period
Objective:To study the body composition,bone density and symmetry of young male students during military basic physical training to provide a basis for daily training.Methods:Ninety-two healthy male subjects underwent a 2-month military basic physical training for body composition and bone density by dual-energy X-ray bone density meter.Result:Bone area,bone mineral content,and bone mineral density in the right arm were significantly higher than those in the left arm(P<0.001).The overall mass was significantly higher than the left arm(P<0.001);The right arm was higher than the left arm(P<0.01)but the right arm was significantly lower fat percentage than the left arm(P<0.001);The right lower limb(P<0.01);The lean mass and overall mass of the right lower limb were significantly higher than the left lower limb(P<0.001).The distribution of overall Z score was 77.1%from 2 to-1,-1 to-2 was 20.7%,and<-2 was 2.1%.Conclusion:The asymmetry between the limbs of young students during the new training period is still common,and the dominant side is significantly stronger than the inferior side.At the same time,due to the sudden increase in training intensity compared to the past,students'energy intake is insufficient to meet their daily needs,and gradually fall into a state of low energy availability.Therefore,it is necessary to adjust daily training plans and increase dietary intake to help eliminate the impact of low energy availability.
Military trainingBody compositionBone densitySymmetry
万方数据
维普
