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101.
生物力学是研究力与运动学、医学、生物学和材料学等学科之间关系的学科,是一门多学科交叉学科相互结合、相互渗透、融合而形成的交叉科学体系。其分支运动生物力学与医用生物力学是实验性和实践性很强的学科,是科技奥运的一个重要组成部分。本文围绕"科技奥运"主题所刊登的有关生物力学在竞技体育应用和在运动医学基础与应用方面相关文稿作出简要综述。 相似文献
102.
2008年奥运会开闭幕式应急医疗队在开幕式接诊患者573人、闭幕式接诊患者125人,以观众为主,各占就诊人数的50.61%和47.2%,转院治疗人数分别为27人及11人;开幕式接诊的患者所患疾病以热相关疾病为首位,为381人占66.49%,其次为急慢性损伤,为124人占21.64%;而闭幕式接诊的患者以急慢性损伤为主,为54人占43.2%。对于大型公众活动,要重视不同环境因素的影响,在高温潮湿天气下,热相关疾病是最常见的公共卫生问题。根据具体情况制定预案,加强检伤分类与后送的管理,高效利用医疗资源,实施科学的应急医疗保障,达到快速诊治患者目的。 相似文献
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104.
目的探讨家庭护理中游戏对幼儿语言能力发展的作用。方法选取四川省成都市温江区某幼儿园1~3岁幼儿62例,按父母职业分类和幼儿年龄以分层抽样的方式分为试验组和对照组。对照组不予以特殊干预,试验组则指导家长如何与幼儿做游戏,干预分为3个阶段,每个阶段干预时间为1个月,采用津守询问式学龄前儿童精神发育诊断量表进行语言商测量。结果试验组和对照组幼儿的语言能力比较,试验组幼儿的语言商得分明显高于对照组,差异有高度统计学意义(P<0.01),不同性别的幼儿语言商得分差异无统计学意义(P>0.05),从事不同职业的父母对幼儿语言能力的发展有一定影响。结论家庭护理中家长合理运用游戏对幼儿语言能力的提高具有积极意义。 相似文献
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“人文奥运”是北京举办2008年奥运会的三大理念之一,也是北京2008年奥运会提出的新理念,它是奥林匹克运动的核心和灵魂。本文从人文、科技和绿色三个角度对北京2008奥运理念进行探讨,“人文奥运”的核心内容以及“人文奥运”理念与其他两大理念之间的关系。 相似文献
107.
Joo-Yul Bae Jun O. Yoon Shin Woo Choi Jae Kwang Kim 《Journal of orthopaedic science》2017,22(6):1049-1053
Background
The purpose of this study was to determine whether a partially healed (surgical delay of 2–6 weeks) metaphyseally malaligned distal radius fracture (DRF) treated using the extended palmar approach with palmar locking plate fixation has poorer clinical or radiological outcomes than those of acute (surgical delay of ≤2 weeks) metaphyseally unstable DRF treated by palmar locking plate fixation.Methods
We identified 24 patients (Group A) who were treated with palmar locking plate for a partially healed (surgical delay of 2–6 weeks) metaphyseally malaligned DRF. We selected 48 patients (Group B) who were treated with palmar locking plate among the acute (surgical delay of ≤2 weeks) metaphyseally unstable DRF to be individually matched in a 1:2 ratio for sex, age, and fracture type. The two study groups were compared with respect to clinical and radiological parameters. The clinical parameters examined were; wrist range of motion (flexion, extension, supination, and pronation), grip strength, and Disabilities of Arm, Shoulder and Hand (DASH) scores. Radiological measurements included radial inclination, palmar angulation, and ulnar variance.Results
The wrist flexion and grip strength were significantly greater in group B than group A at 3 months postoperatively. However, wrist ranges of motion, grip strengths, and DASH scores were not significantly different at 1 year postoperatively. Radiographic evaluation demonstrated no intergroup difference in terms of radial inclination, palmar angulation, or ulnar variance at 1 year postoperatively.Conclusions
Partially healed metaphyseally malaligned healed DRFs had inferior clinical outcomes to acute metaphyseally unstable DRFs in an early postoperative period, however, achieved similar clinical outcomes at 1 year postoperatively when treated using palmar locking plate fixation. 相似文献108.
A plateau in oxygen consumption (V̇O2) has long been considered the criterion for maximal effort during an incremental exercise test. But, surprisingly, the termination
of a maximum exercise test often occurs in the absence of a V̇O2 plateau. To explain this inconsistency, some have proposed that an oxygen limitation in skeletal muscle occurs only in elite
athletes. To evaluate this hypothesis, we determined the frequency with which the "plateau phenomenon" developed in a group
of elite male and female athletes. Fifty subjects performed a continuous incremental treadmill test to measure maximal oxygen
consumption (V̇O2max). Treadmill velocity increased by 0.31 m s−1 until the respiratory exchange ratio (R) reached 1.00. Thereafter the treadmill gradient increased by 1% each minute until exhaustion. The V̇O2max was the highest V̇O2 sustained for 60 s. Three criteria were used to determine maximal efforts: (1) a plateau in the V̇O2, defined as an increase of less than 1.5 ml kg−1 min−1; (2) a final R of 1.1 or above; (3) a final heart rate (HR) above 95% of the age-related maximum. Mean V̇O2max exceeded 65 ml kg−1 min−1 in both groups. The criteria for R and HR were satisfied by 72% of males and 56% females, and 55% of males and 69% of females, respectively. In contrast a V̇O2 plateau was identified in only 39% of males and 25% of females. These findings refute the twin arguments: (1) that the absence
of a "plateau phenomenon" results from an inadequate motivational effort in poorly trained athletes and (2) that the "plateau
phenomenon" and a consequent skeletal muscle anaerobiosis occur only in athletes with the highest V̇O2max values. 相似文献
109.
110.
目的 了解深圳市第26届世界大运会控烟工作现状及居民在公共场所的控烟行为,为深化公共场所控烟工作提供依据.方法 在深圳市6个区12个人流量较大的区域进行随机拦截问卷调查.结果 80.43%的居民对目前的控烟氛围持肯定的态度,53.78%的居民认为目前控烟环境较好.与大运会控烟保障工作启动前的2010年底相比,38.94%的居民认为目前深圳市控烟宣传材料或禁烟标识增多了;36.96%的居民认为目前控烟宣传活动增多了;33.85%的居民认为吸烟人数减少很多了;32.92%的居民认为劝阻吸烟现象增多了.不同性别之间和不同户籍之间的控烟环境总体评价差异均无统计学意义(χ2=2.55,P〉0.63;χ2=7.22,P〉0.13).结论 大运控烟工作取得一定成效,但与WHO〈烟草控制框架公约〉的有关规定等尚存一定差距,今后需要加强政府投入和社会支持力度,进一步深化深圳市控烟工作. 相似文献