排序方式： 共有94条查询结果，搜索用时 31 毫秒
51.
张汝贵 《包头职业技术学院学报》2012,(1):1-3
大型货车和客车一般都采用鼓式刹车,但由于零部件制造及装配误差等原因,常使车桥两端刹车鼓与刹车蹄之间受力不均,造成刹车跑偏。文章所设计的刮蹄机,较好地解决了上述刹车弊病。其刮蹄精度高,是一项实用、可靠的设计。 相似文献
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第十九届全国运动生物力学学术交流大会于2017年10月13-16日期间在河北石家庄顺利召开。作为全国最大规模的运动生物力学大会,吸引了来自全国各地的学者的参与和关注。大会邀请众多国内外知名专家、学者作了相关研究的专题报告,展示了当前国内外在运动生物力学及其相关外延性研究方面的诸多实用性较强的研究成果,来自全国多所高校的学生以及体育相关研究所的学者纷纷投稿并参会。本次大会为各位专家、学者、科研人员以及在校大学生提供了一个学术交流的平台,对进一步加深高校与科研机构的学科交流、促进学科发展起到了重要的推动作用。 相似文献
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1988年5月,黑龙江省文物考古研究所在阿城市巨源乡城子村西出土了一批极为珍贵的丝织品服饰、靴、鞋、袜、冠带等文物,直接填补了金代服饰研究的空白,诸多金代服饰及宋代金锦更为世所罕见,被誉为＂北方的马王堆＂。它是研究我国古代服饰最好的实物例证。 相似文献
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高跟鞋-步态-损伤之生物力学研究 总被引：1，自引：0，他引：1
高跟鞋状态下的“足一鞋”生物力学研究已引起学界和业界的高度重视。文章在综合国内外研究文献的基础上,系统总结了高跟鞋状态下的步态特征及运动损伤之生物力学机理,并对高跟鞋及由此引发的运动损伤等研究热点进行了探讨。高跟鞋状态的步态特征表现为鞋跟高度增加会使足底压力发生重新分配即足前掌压力增大、足后掌压力减小。高跟鞋运动损伤的研究表明穿着高跟鞋不仅能引发足部疾病,还可引发腰背疼痛、应力性骨折、骨关节炎等疾病。预计对不同跟高进行的高敏度研究及高跟鞋对上肢乃至全身骨骼肌肉系统影响的生物力学研究都将成为高跟鞋状态的未来研究趋势。 相似文献
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ABSTRACT Running is an activity with a consistently high injury rate. Running footwear design that mimics barefoot running has been proposed to reduce injury rate by increasing the strength of foot structures. However, there is little evidence to support this. The purpose of the current study is to use shear wave ultrasound elastography to examine material properties (shear modulus) of intrinsic foot structures in experienced minimally and traditionally shod runners. It is hypothesized that minimalist runners will exhibit increased stiffness compared to controls demonstrating the strengthening of these structures. Eighteen healthy runners (8 minimalist and 10 traditionalist), running a minimum of 10 mi · wk?1, participated. Elastography scans were performed on the left foot of each participant. There is no apparent stiffening of foot structures associated with wearing minimalist shoes. Only the FHB tendon is different between shoe types and, contrary to the hypothesis, was stiffer in traditionalist compared to minimalist runners (257.26 ± 51.64 kPa vs 160.88 ± 27.79 kPa, respectively). A moderate positive (r = 0.7) relationship between training load and tendon stiffness suggests strengthening of tendon when running in traditional shoes. If running in minimalist shoes increases loading on these structures without resulting in stronger tissues, it is possible that minimalist footwear may increase injury risk. 相似文献
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黄少青 《泉州师范学院学报》2009,27(5):114-118
文章围绕运动鞋设计专业的学生在就业初期,如何为企业产生效益这一问题,阐述鞋类行业的设计师应具备的主要技能,及就业前工作能力与企业的接轨的一些观点。学生在校期间提前完成企业对毕业生的再培训,缩短毕业生与市场的磨合期,从而使设计师设计的作品能尽快地适应市场的需求,最大限度地为企业创造效益。通过与国家劳动部联合举办鞋类设计师考试、培训（专业培训为期两年,分前、中、后三个阶段）这一平台,经过4年来对企业的调查和实践,探索出一个较适合泉州地区中小型鞋企设计师综合素质培训的方案。 相似文献
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以第9届全国少数民族传统体育运动会、女子100m板鞋竞速前2名运动员为研究对象,运用高速摄像对女子板鞋竞速运动员途中跑关键技术动作进行图像分析,从生物力学、运动解剖学的角度,分析途中跑关键技术动作的原理及技术动作之间的联系,依据人体运动规律及动作技术的基本结构与特征,探索女子100m板鞋竞速的技术、改进与创新,为女子100m板鞋的技术训练提供理论依据。 相似文献
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Mark G. L. Sayers Caroline Bachem Pascal Schütz William R. Taylor Renate List Silvio Lorenzetti 《Journal of sports sciences》2020,38(9):1000-1008
ABSTRACTThis research assessed the influence of various heel elevation conditions on spinal kinematic and kinetic data during loaded (25% and 50% of body weight) high-bar back squats. Ten novice (mass 67.6 ± 12.4 kg, height 1.73 ± 0.10 m) and ten regular weight trainers (mass 66.0 ± 10.7 kg, height 1.71 ± 0.09 m) completed eight repetitions at each load wearing conventional training shoes standing on the flat level floor (LF) and on an inclined board (EH). The regular weight training group performed an additional eight repetitions wearing weightlifting shoes (WS). Statistical parametric mapping (SPM1D) and repeated measures analysis of variance were used to assess differences in spinal curvature and kinetics across the shoe/floor conditions and loads. SPM1D analyses indicated that during the LF condition the novice weight trainers had greater moments around L4/L5 than the regular weight trainers during the last 20% of the lift (P < 0.05), with this difference becoming non-significant during the EH condition. This study indicates that from a perspective of spinal safety, it appears advantageous for novice weight trainers to perform back squats with their heels slightly elevated, while regular weight trainers appear to realize only limited benefits performing back squats with either EH or WS. 相似文献
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徐伟 《咸阳师范专科学校学报》2014,(1):75-78
关中历史悠久,文化灿烂,孕育了丰富多彩的民间艺术,其中最为精彩的便是民间刺绣。本文以关中刺绣虎头鞋为研究对象,探索这一民间刺绣的民俗文化、工艺特点和艺术特色,并剖析其生存现状,探索其艺术价值及审美特色。 相似文献