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目的:分析比较不同年限及方式踢毽锻炼中老年男性骨矿含量(BMC)和骨密度(BMD)的不同。方法:选取每周踢毽5～7次、每次2～4小时的40～60岁男性27例,按踢毽年限和目前踢毽方式分为踢毽I组(3～12年,双腿踢毽,13例)和踢毽II组(1～3年,单腿踢毽,14例),另选不常运动的16例同龄男性为对照组。采用双能X线骨密度扫描仪测试BMC和BMD,比较分析三组全身和10个部位(头部、胸椎、腰椎、骨盆、非优势臂、优势臂、左肋、右肋、非优势腿、优势腿),以及组内两臂、两肋、两腿的BMC和BMD差异。结果:两踢毽组受试者全身BMC、全身BMD均显著高于对照组(P<0.05,P<0.01)。局部比较:踢毽II组优势腿、非优势腿、骨盆3个部位BMD和非优势腿BMC均显著高于对照组(P<0.05,P<0.01);踢毽I组除左肋外的其他9部位BMC和全部10个部位BMD均显著高于对照组(P<0.05,P<0.01)。双侧比较:踢毽II组非优势腿BMD显著高于优势腿(P<0.05,P<0.01)。结论:长期踢毽锻炼中老年男性全身BMC和BMD较无运动男性更高;踢毽年限越长,获得更高BMC和BMD的部位越多,在下肢和骨盆部位更明显;长期单腿踢毽可能造成两腿BMD发展不均衡。
OBJECTIVE: To analyze the differences of bone mineral content (BMC) and bone mineral density (BMD) between middle-aged and elderly men in different ages and modes of kick and kick. Methods: A total of 27 male 40 to 60-year-olds aged 5 to 7 times a week for 2 to 4 hours were divided into two groups according to their playing time and the current kick-off method. Group I (3-12 years, 13 cases of kick and 13 cases of kick and 踢 II group (1-3 years, one-legged kick 毽, 14 cases), and another 16 cases of the same age were selected as the control group. BMC and BMD were measured by dual-energy X-ray absorptiometry. Three groups of whole body and 10 parts (head, thoracic vertebrae, lumbar vertebra, pelvis, non-dominant arm, superior arm, left rib, right rib, Dominance), and differences in BMC and BMD between arms, two ribs, and two legs. Results: The body mass index (BMC) and whole body BMD in both groups were significantly higher than those in the control group (P <0.05, P <0.01). Local comparison: BMD and non-dominant leg BMC in dominant and non-dominant legs and pelvis were significantly higher in Group II than those in control group (P <0.05, P <0.01) The BMD of 9 BMCs and all 10 sites was significantly higher than that of the control group (P <0.05, P <0.01). Bilateral comparison: The BMD of non-dominant leg of Group II was higher than that of dominant leg (P <0.05, P <0.01). Conclusion: BMC and BMD in middle-aged and elderly men with long-term kick are higher than those without exercise. The longer the kick-off duration, the more sites with higher BMC and BMD, the more obvious in the lower extremities and pelvis. The long- BMD may cause uneven development of both legs.