主办单位:成都体育学院
ISSN 1001-9154 CN 51-1097/G8

成都体育学院学报 ›› 2013, Vol. 39 ›› Issue (2): 83-88.

• 运动人体科学 • 上一篇    下一篇

青年和老年男女抗阻训练后的骨密度变化特征

陈金鳌1,张霈2,杨帆3,陆阿明4   

  1. 1.常州大学体育学院,江苏常州213164;
    2.河北工业大学体育部,天津300130;
    3.山西省肿瘤医院骨科,山西太原030013;
    4.苏州大学体育学院,江苏苏州215021
  • 收稿日期:2012-10-18 修回日期:2014-01-03 出版日期:2013-02-20 发布日期:2014-01-03
  • 作者简介:陈金鳌(1981-),男,江苏淮安人,助教,硕士,研究方向健身运动与体适能健康;通讯作者陆阿明。
  • 基金资助:
    国家社会科学基金项目(11BTY045)。

Characteristics of Young and Old Men and Women BMD Changes after Resistance Exercises

CHEN Jin-ao, et al   

  1. Changzhou University, sports college, Changzhou Jiangsu
  • Received:2012-10-18 Revised:2014-01-03 Online:2013-02-20 Published:2014-01-03

摘要: 目的研究青年和老年男女在抗阻力训练后,身体不同部位骨密度(BMD)和骨矿含量(BMC)的变化特征。方法随机选取年龄在20-30岁之间的青年男女各35名,以及年龄在65-75岁之间的老年男女各35名作为实验对象,分别组成不同年龄及性别的4个实验组,对下肢实行为期5个月的抗阻训练计划,要求每周训练3-4次。实验前后对所有受试者进行下肢12RM肌力测试,并使用双能X线吸收法(DXA)测量腰椎(L2-L4)及股骨近端区域(股骨颈、Wards三角区、大转子)的BMD。采用单因素方差分析和事后多重比较检验考察各组实验数据间的差异,同时应用Pearson相关分析法判断BMD与肌力之间的关系。结果实验结束后,所有受试者较实验前下肢12RM肌力有明显增长(P<0.01);股骨颈、Wards三角区、大转子等3个部位的BMD和下肢BMC总体上也均有显著提高(P<0.05);而腰椎(L2-L4)BMD在实验前后无显著性差异(P>0.05)。抗阻训练后身体各部位的BMD变化无性别差异,也无年龄差异(P>0.05);仅股骨颈部位的BMD增长有青年较老年受试者偏高的趋势(P<0.06)。结论青年和老年男女在5个月抗阻训练后,整体的股骨近端区域骨密度明显上升,其中并无年龄及性别差异,仅股骨颈部位的骨密度增长有青年较老年受试者偏高的趋势。

关键词: 年龄, 性别, 抗阻训练, 骨密度, 骨矿含量

Abstract: Methods 35 young men and women aging 20-30 and 35 old men and women aging 65-70 are randomly selected as the subjects and they are divided into 4 groups with different ages and genders.They are subject to five months of resistance training to their lower limbs , 3-4 times each week. Before and after the experiment, all the subjects’ lower limbs are tested with 12RM of the lower limbs and RM muscle testing, and dual energy X-ray absorptiometry (DXA) is used to measure the BMD of lumbar (L2 - L4) and the near-end femoral zone (femoral neck, Wards triangle, greater trochanter). Single factor analysis of variance and multiple comparison are later used to detect the differences of the experimental data of each group. At the same time, Pearson correlation analysis is adopted to judge the relationship between BMD and muscle strength. Conclusion all subjects’ BMD at near-end of the femoral zone increases significantly with no age or gender differences. Only the BMD at the femoral neck of some young subjects is higher than that in some old subjects.

Key words: age, gender, resistance exercise, bone mineral density(BMD), bone mineral content(BMC)


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