Effects of swimming associated with risedronate in osteopenic bones: An experimental study with ovariectomized rats

Physical activity and risedronate sodium have effects on metabolic bone diseases, maintaining the integrity of bone tissue. Our objective was to evaluate the effects of swimming associated with risedronate as a prophylactic means in osteopenic bone of ovariectomized rats. A total of 24 animals of the Wistar strain were used and separated into four groups containing six animals: Ovariectomy (OVX), ovariectomy and swimming (OVXS), ovariectomy and risedronate (OVXM), ovariectomy, risedronate and swimming (OVXMS). The effectiveness of the treatments were evaluated using the tibia by means of biomechanical, radiographic, histomorphometric analyzes. Statistical analysis was performed by the non-parametric Kruskal–Wallis test (p < 0.05). The OVXM and OVXMS groups showed higher values ​​compared to OVX in maximum strength and rigidity. Microscopic analysis showed increased trabecular bone in the OVXM group in relation to the others, and in the OVXMS compared to OVXS. Proximal densitometry in the OVXM and OVXMS groups showed higher values than the OVX and OVXS groups. There were no significant differences in overall densitometry. In conclusion, when comparing the prophylactic means, risedronate was able to preserve bone mass significantly, unlike exercise where an improvement of bone tissue was observed, although not significant, and when swimming and risedronate are combined the result was even better.     

封闭式运动减肥对肥胖青少年体质健康的影响

对44名14～19岁肥胖青少年进行6周的封闭式饮食控制及运动,测定实验对象的身体形态、身体机能、身体素质和血液健康等指标.通过数理统计方法对实验所测得的数据进行分析.结果表明:肥胖青少年的脂肪量、体质量、体脂率都有明显的下降(P0.05);肺活量逐渐上升,身体素质指标(耐力、柔韧、50 m跑)与血液健康指标(血脂TC、甘油三酯TG、空腔胰岛素FINS)都呈非常明显改善(P0.01).封闭式运动减肥对青少年肥胖者体质健康具有良好的效能表现.     

中医药抗运动性疲劳的研究现状

目前,丰富医学界对中医药抗运动疲劳的研究主要有两方面一、中医对运动性疲劳的诊治;二、中药对运动性疲劳的作用.文章对这两方面的研究进展进行了综述,为进一步的研究提供了参考依据     

New efficient catalysts for the aerobic oxidation of ethers

Some nickel, copper, and silver salts or complexes are efficient catalysts for the oxidation of benzylic ethers with oxygen in 1,2-dimethoxyethane. Salts of the weakly coordinating anion trifluoroacetate are particularly efficient, approaching (and, in some cases, improving) the yields obtained with cobalt(II) chloride, the best catalyst so far reported.     

运动时血浆皮质醇变化的影响因素

本文综合了在运动时血清皮质醇浓度的变化不仅受运动形式，运动强度，运动持续时间，血浆ｐＨ，训练水平，缺氧，心理等多种因素的影响，并且各因素间的相互作用也是影响其变化的重要因素。     

高校竞技健美操运动员腕部损伤的原因及康复手段

通过调查与访谈,对参加江苏省16届运动会高校部健美操比赛的运动员手腕部的运动损伤情况进行统计与分析,总结出造成手腕部运动损伤的原因及康复治疗的手段,以期减少不必要的运动损伤,为竞技健美操教学与训练提供有效帮助。     

民营企业家体育锻炼与生活方式及健康现状的调查分析

对浙江沿海3城市(温州市、宁波市、台州市)208名(25岁～59岁)民营企业家的身体健康状况、体育锻炼情况与生活方式等进行调查,结果表明:浙江沿海3城市民营企业家身体健康状况不容乐观.体质测试总体合格率为65.86%,低于全国的合格率(71.40%)和浙江省的平均水平(79.70%).大多数民营企业家日常生活方式差,参加体育锻炼的人数少.建议民营企业家要养成良好的生活习惯,重视卫生保健知识的自我教育,积极参加体育锻炼.     

对逐级递增负荷力竭性运动前后自由基代谢的灰色关联分析

采用灰色关联分析方法研究了逐级递增负荷力竭性运动前后自由基代谢指标的变化，结果显示，自由基代谢系统不同成分之间的相互影响是非常复杂的；尿液T—SOD的变化可能主要受到肾脏本身自由基代谢状态的影响；机体各组织细胞中生成的MDA对尿液MDA含量的变化有重要影响．     

Fused silica capillary deactivation with D4 in the presence of oxygen

A new, simple procedure to deactivate fused silica capillaries without hydrothermal treatment is proposed. Based on high temperature reactions of octamethylcyclotetrasiloxane (D₄) in the presence of oxygen, this procedure results, upon coating with dimethylsilicone (SE-30), in columns which give almost symmetric peaks for as little as 150 pg of critical compounds, such as decylamine, thereby demonstrating very high inertness. A mechanism of the deactivation procedure, which, in contrast to previously developed procedures, is based on thermal reactions under aerobic conditions, is proposed.