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1.
老年人随龄增长骨量变化与健骨运动的研究进展 总被引：1，自引：0，他引：1
通过对老年人骨量变化与健骨运动的研究回顾,从运动健骨的角度,对不同运动项目、运动与非运动老年人群的骨量变化等方面进行了分析与综述,明确了运动对老年人骨量和骨代谢活动的影响,对指导老年人的运动健身有一定的意义。 相似文献
2.
目的：探讨乒乓球运动对跟骨骨密度的影响。方法：采用CM-100超声波骨密度测定仪进行跟骨部超声波传导速度（SOS）的测定，同时测定血睾酮浓度。结果：乒乓球运动员的跟骨骨密度与普通大学生有显著性差异，两组骨密度都与血睾酮呈正相关。结论：乒乓球运动对跟骨骨密度有促进作用，血睾酮与骨密度有一定的相关性。 相似文献
3.
目的:比较音、体、美、舞蹈专业教育对青春期女大学生体成分及骨密度(BMD)的影响.方法:采用双能X线吸收法和生物电阻抗法对232名岭南师范学院音、体、美、舞蹈及普通专业大一女生体成分和骨密度进行测试.结果:①体育生和舞蹈生腰臀比、体脂百分比低于音乐生、美术生与普通生,而体重、肌肉量却高于音乐生、美术生与普通生;音乐生与美术生的体重高于普通生,具有统计学差异(p＜0.05).②体育生和舞蹈生前臂骨和跟骨的骨密度值均高于音乐生、美术生与普通生;美术生跟骨骨密度高于音乐生与普通生,差异具有统计学意义(p＜0.05);体育生前臂骨跟骨骨密度与普通生比分别高出,13.63％,22.31％.结论:音、体、美、舞蹈专业教育对青春期女大学生体成分和骨密度的影响各有不同:经常参与体育与舞蹈锻炼,能增加去脂体重,有效提高骨密度;音乐与美术专业教育对女生形体美的塑造有一定作用,但却不能有效提高去脂体重和骨密度、减少体脂量及体脂在腰部的堆积. 相似文献
4.
Objective: To investigate the directed transplantation of allograftic bone marrow-derived mesenchymal stem cells (MSCs) in myocardial infarcted (MI) model rabbits. Materials and Methods: Rabbits were divided into 3 groups, heart infarcted model with MSCs transplanted treatment (MSCs group, n=12), heart infarcted model with PBS injection (control group, n=20), sham operation with PBS injection (sham group, n=l 7). MSCs labelled by BrdUrd were injected into the MI area of the MSCs group. The same volume of PBS was injected into the MI area of the control group and sham group. The mortality, LVIDd, LVIDs and LVEF Of the two groups were compared 4 weeks later. Tropomyosin inhibitory component (Tn I) and BrdUrd immunohistochemistry identified the engrafted cells 4 weeks after transplantation. Result: The mortality of the MSCs group was 16.7% (2/12), and remarkably lower than the control group's mortality [35% (7/20) (P＜0.05)].Among the animals that survived for 4 weeks, the LVIDd and LVIDs of the MSCs group after operation were 1.17±0.21 cm and 0.74±0.13 cm, and remarkably lower than those of the model group, which were 1.64±0.14 cm and 1.19±0.12 cm (P＜0.05); the LVEF of the MSCs group after operation was 63±6%, and remarkably higher than that of the model group,which was 53±6% (P＜0.05). Among the 10 cases of animals that survived for 4 weeks in the MSCs group, in 8 cases (80%),the transplanted cells survived in the non MI, MI region and its periphery, and even farther away; part of them differentiated into cardiomyocytes; in 7 cases (70%), the transplanted cells participated in the formation of blood vessel tissue in the MI region. Conclusion: Transplanted allograftic MSCs can survive and differentiate into cardiomyocytes, form the blood vessels in the MI region. MSCs transplantation could improve the heart function after MI. 相似文献
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杜甫作为典型的儒家知识分子,其诗歌创作始终贯穿着爱国主义精神、忧国忧民的思想,永不衰退的政治热情。以饥寒之身而怀济世之心,尤以其＂骨＂诗的精神尤为突出,其对仁爱做出的生动而深刻的诠释引起了后人极大的心灵震撼。 相似文献
6.
目的:建立HPLC法测定鹿骨片中硫酸软骨素钠的含量方法。方法:采用C18柱(250×4.6mm,5μm)为色谱柱;甲醇-0.004%庚烷磺酸钠溶液(20:80),用磷酸调节p H值至3.5为流动相;流速0.8m L·min-1;检测波长197nm。结果:该方法在0.0208mg·m L-1~0.2078mg·m L-1浓度范围内具有良好的线性关系,R=0.9999;平均回收率为99.80%,RSD(%)=0.35%。结论:该测定方法准确、可靠、重复性好,可作为鹿骨片的质量控制方法。 相似文献
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1）高原地区青少年骨骼发育晚熟比率大于早熟比率,正常比率为54.70%,晚熟比率为38.20%,早熟比例为7.10%。2）高原地区青少年发育不同指标的差异分析表明,在0.05差异显著性水平下,不同单位的龄差存在差异,是否独生子女的龄差存在差异,不同性别的龄差不存在差异,不同民族的龄差不存在差异。3）鉴于高原地区因遗传或特殊环境造成的青少年整体发育相对较为（晚）（龄差均值=-0.742）特殊性,就高原地区青少年耐力性运动员初级选材而言,其龄差标准应在参考国家标准（龄差绝对值≥2）的基础上,以新标准（龄差≤-2.5或龄差>1.0）为主。 相似文献
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脊椎动物通过进化选择了磷酸钙类磷灰石矿物来构建其牙齿和骨骼。本文描述了磷灰石在生物矿化过程中的关键特征,揭示了生物如何调制磷灰石的结构来控制矿物的组成和功能。通过以应用目的而进行的磷酸钙的合成与性能测试进行的研究,加深人们对磷灰石的化学和物理性质与其生长条件的敏感性有了更深刻的理解。 相似文献
9.
India seems to have the highest prevalence of osteoporosis. With growing awareness of osteoporosis and its impact on life
span especially in India, special attention is being paid to early detection, management and treatment of postmenopausal osteoporosis
in women. Measurement of BMD and osteocalcin are of value in estimating bone turnover rates. The aim of this study is (1)
to measure the specific, sensitive bone formation marker such as osteocalcin and BMD in postmenopausal osteoporosis women
and postmenopausal non-osteoporosis women; (2) the follow up study to evaluate the impact of specific antiresorptive therapy
(alendronate + calcium + vitamin D) regimen in postmenopausal osteoporosis by assaying osteocalcin and BMD. Sixty clinically
diagnosed postmenopausal osteoporosis patients and 60 normal subjects (postmenopausal non-osteoporosis women) were recruited
as control. Mean bone mineral density T score and Z score was significantly decreased (P < 0.001) in postmenopausal osteoporosis patients as compared to controls. Highly significant increase in the mean score of
BMD—T score and Z score from baseline to post therapy of 3 months was observed in postmenopausal osteoporosis women. Serum osteocalcin levels
were significantly increased (P < 0.001) as compared to control group. Serum osteocalcin levels were decreased significantly (P < 0.001) from baseline to post therapy of 3 months in postmenopausal osteoporosis women. BMD is the best quantifiable predictor
of osteoporotic fracture and osteocalcin is specific, sensitive, promising, currently used marker for better prognosis of
osteoporosis and for monitoring responses to antiresorptive therapy. 相似文献
10.
传统的尸检文书包含有尸图,用于记录尸体的损伤情况。然而,当命案调查中遇到白骨化尸体时,尸图并不适合表征骨骼的情况。清代刑部为解决该问题,于1770年绘制了检骨图。然而,该图绘制了一些多余的骨骼。本文描述了其中的一些骈枝骨骼的特征,并分析了导致它们出现的文献上的一些原因。本文认为,《律例馆校正洗冤录》中一些骨骼的命名方式,骨骼知识的形成方式和该文献的汇编性质,都是导致骈枝骨骼出现的原因之一。 相似文献