三种健身气功练习对老年女性骨密度的影响

目的探讨定期的健身气功易筋经、五禽戏和八段锦练习对老年女性腰椎和股骨近端骨密度(BMD)的影响。方法年龄、身高和体重相匹配的易筋经组(n=22)、五禽戏组(n=22)、八段锦组(n=21)和对照组(n=25)参与研究,三种健身气功组进行为期24周(5次/周,70 min/次)的健身气功练习。测试4组受试者腰椎L_(2-4)和股骨近端BMD。结果 24周后组内比较:易筋经组和八段锦组腰椎L_(2-4)的BMD分别显著增加12.0%和11.0%(P0.05),五禽戏组腰椎L_(2-4)的BMD虽有增加(5.6%)但无显著变化(P0.05);组间比较:易筋经组和八段锦组腰椎L_(2-4)的BMD分别大于对照组12.0%和9.8%(P0.05)。结论 24周易筋经和八段锦练习增加了老年女性腰椎L_(2-4)的BMD,且效果优于五禽戏。三种健身气功对股骨近端BMD影响均不明显。

Effect of three fitness Qigong exercises on bone mineral density in elderly women

Objective To explore the effect of Chinese traditional fitness Qigong, Yi Jinjing, Five-animal exercise, and Eight section brocade on bone mineral density (BMD) of the lumbar spine and proximal femur in elderly women. Methods The age, height, and weight were matched among Yi Jinjing group (n=22), Five-animal exercise group (n=22), Eight section brocade group (n=21), and control group (n=25) in the study. The exercise lasted for 24 weeks (5 days/week, 70 minutes/time). BMD of the L2-4 and the proximal femur of the 4 groups were tested. Results After 24 weeks, BMD of lumbar L2-4 in Yi JinJing group and Eight section brocade group increased by 12% and 11%, respectively (P<0.05). BMD of the L2-4 in the lumbar vertebra of Five-animal exercise group increased by 5.6%, and there was no significant change (P>0.05). BMD of lumbar spine L2-4 in Yi JinJing group and Eight section brocade group were significantly higher (12% and 9.8%, respectively) than that in control group (P<0.05). Conclusion Yi Jinjing and Eight section brocade exercise increase the BMD of the lumbar L2-4 in elder women. The effect of three kinds of Qigong on BMD of the proximal femur is not obvious.