Programa de Pós-graduação Stricto Sensu em Enfermagem e Biociências, PpgEnfBio, da Universidade Federal do Estado do Rio de Janeiro, UNIRIO, Rio de Janeiro, Brazil.
Arch Gerontol Geriatr. 2013 May-Jun;56(3):466-71. doi: 10.1016/j.archger.2012.12.012. Epub 2013 Feb 1.
The aim of the present study was to evaluate the effects of an AAG on BMD, osteocalcin and functional autonomy in older women. The sample consisted of eighty-two post-menopausal women with low BMD, randomly divided into two groups: the Aquatic Aerobics Group [AAG; n=42; age: 66.8±4.2years], submitted to two weekly sessions over eight months, and the Control Group (GC; n=42; age: 66.9±3.2years), which did not participate in regular exercise. BMD was measured by Dual Energy X-ray Absorptiometry [DXA] of the lumbar and femur, and serum osteocalcin was measured using electrochemiluminescence. A functional autonomy assessment protocol (GDLAM, 2004) was also applied. Statistical analyses used were repeated measures ANOVA and Tukey's post hoc tests. The results showed a significant improvement in tests following the GDLAM protocol: 10 meters walk (10mw) -p=0.003; rising from a ventral decubitus position (RVDP) - Δ%=0.78, p<0.001; rising from a chair and moving around the house (RCMH) -p<0.001 and autonomy index (AI) -p=0.007, with more favorable results observed in the AAG when compared to the CG. The AAG achieved the best results for BMD; however, no inter or intragroup statistical differences were recorded for total femur -p=0.975 and lumbar L(2)-L(4)p=0.597. For serum osteocalcin, intra and intergroup statistical differences of p=0.042 and p=0.027 were observed in the AAG, respectively. This demonstrates that an eight-month aquatic aerobic exercise program can improve functional autonomy and osteocalcin levels, although training did not improve lumbar and total femur BMD in the older women.
本研究旨在评估 AAG 对骨密度、骨钙素和老年女性功能自主性的影响。研究对象为 82 名患有低骨密度的绝经后妇女，随机分为两组：水上有氧运动组（AAG；n=42；年龄：66.8±4.2 岁），每周进行两次训练，共持续 8 个月；对照组（GC；n=42；年龄：66.9±3.2 岁），不参加常规运动。使用双能 X 射线吸收法（DXA）测量腰椎和股骨的骨密度，使用电化学发光法测量血清骨钙素。还应用了功能自主性评估方案（GDLAM，2004 年）。使用重复测量方差分析和 Tukey 事后检验进行统计分析。结果显示，GDLAM 方案测试的以下项目有显著改善：10 米步行（10mw）-p=0.003；从仰卧位起身（RVDP）-Δ%=0.78，p<0.001；从椅子上起身并在室内活动（RCMH）-p<0.001 和自主性指数（AI）-p=0.007，AAG 组的结果优于 GC 组。AAG 组的骨密度改善最佳；然而，总股骨和腰椎 L2-L4 处的组内和组间差异均无统计学意义（p=0.975 和 p=0.597）。对于血清骨钙素，AAG 组的组内和组间差异均有统计学意义（p=0.042 和 p=0.027）。这表明，为期 8 个月的水上有氧运动方案可以提高老年女性的功能自主性和骨钙素水平，尽管训练并未改善腰椎和总股骨的骨密度。
