Effects of Long -Term Winter Swimming on Bone Metabolism of Senile Men

To determine the level of Ga, P, BGP, T, and E2 content in the serum quantitatively, value of bone mineral content (BMC), bone width(BW),and bone mineral density (BMD) of distal radius in senile men. The results showed that TBG, T, and E2 in winter swimming group were higher than those in the control group, two groups show a significant difference (P < 0.05), while serum calcium, serum phosphorus and no significant difference between the two groups (P > 0.05). Serum calcium, serum phosphorus concentration after exercise in winter swimming group were lower than those in the control group, the difference was not significant. BMC and BMD in winter swimming group were significantly higher than those in the control group, most significant difference (P < 0.01), while BW in two groups had no significant difference (P > 0.05). Winter swimming is helpful to improve the bone metabolism in the elderly.