长期冬泳对老年人骨健康指标的影响

目的了解长期冬泳运动对老年人骨密度和骨代谢指标的影响。方法以114名55~65岁的老年人为研究对象,分为冬泳组和对照组。采用Sahara Clinical Bone Sonometer超声骨密度测定仪测定跟骨宽带超声衰减(BUA)、超声声速(SOS)、定量超声指数(QUI)和骨密度(BMD)。采用MODULAR全自动生化分析仪测定血清钙(Ca)、磷(P)和碱性磷酸酶(ALP)含量,同时采用S200型酶标仪测定骨钙素(BGP)、抗酒石酸酸性磷酸酶5b(TRACP5b)含量。结果冬泳组男性老年人的BUA、SOS、QUI和BMD均值高于对照组,且存在非常显著的组间差异(P0.01);冬泳组和对照组老年人的ALP均值存在显著的组间差异(P0.05),血清Ca、BGP、TRACP5b均值的组间差异非常显著(P0.01)。结论冬泳运动能够有效改善老年人的骨代谢能力和男性老年人的骨密度,对提高老年人整体健康水平有积极意义,是适合老年人锻炼的有益运动。

Effect of long-term winter swimming on bone health in the elderly

Objective To investigate the effect of long-term winter swimming on bone mineral density (BMD) and bone metabolism in the elderly. Methods A total of 114 elderly people, aging from 55 to 65 years old, were selected and divided into winter swimming group and control group. BUA, SOS, QUI, and BMD values of the calcaneus were determined using the Sahara Clinical Bone Sonometer. The serum levels of calcium (Ca), phosphorous (P), and ALP were determined using MODULAR automatic biochemical analyzer. The content of osteocalcin (BGP) and tartrate-resistant acid phosphatase 5b (TRACP5b) was determined using S200 type microplate reader. Results The average values of BUA, SOS, QUI, and BMD in the winter swimming group were higher than those in the control group, and the difference was significant (P<0.01). The average value of ALP between the groups was significantly different (P<0.05). The significant difference of the average serum levels of Ca, BGP, and TRACP5b between two groups was also observed (P<0.01). Conclusion Winter swimming can improve the bone metabolism and BMD in the elderly men. It has a positive significance to improve the overall health of the elderly. So it is a good exercise for the elderly people.