Role of objectively measured sedentary behaviour in physical performance,frailty and mortality among older adults: A short systematic review

Sedentary behaviour (SB) has recently emerged as an independent risk factor for different health outcomes. Older adults accumulate long time in SB. Understanding the role that SB plays on health is crucial for a successful aging. This short systematic review summarizes the current evidence related to the effects of objectively measured SB on frailty, physical performance and mortality in adults ≥60?years old. The literature search produced 271 records for physical performance (n?=?119), frailty (n?=?31), and mortality (n?=?121). Finally, only 13 articles fulfilled the inclusion criteria and were included in this review. All articles but one included in the physical performance section (n?=?9) showed a negative association between longer time spent in SB and physical performance. A significant association of SB with higher odds of frailty was found, however this association disappeared after adjusting for cognitive status. Lastly, two of the three included studies showed positive associations between SB and mortality, but this effect decreased or even disappeared in the more adjusted models. In conclusion, there is consistency that SB is negatively associated with physical performance. However, the relationship between objectively measured SB and frailty incidence and mortality rates remains unclear and deserves further research. The use of homogenous criteria to assess SB and the inclusion of more robust research designs will help clarifying the independent effects that SB could have on physical performance, frailty, and mortality. This will ultimately help designing more efficient and comprehensive physical activity guidelines for older adults.     

Emotional energy and sub-cultural politics: alternative bands in post-1997 Hong Kong

The paper attempts to work out the link between the structuring of the public domain and hegemonic masculinities in contemporary Kerala, South India. Using the debates around an incident of sexual harassment that happened in 1999, it argues for a conjunctural understanding of the contemporary where various events and moments in history are replayed through narrativization and popular memory. The paper goes on to analyse the debates around the incident that produce a ‘narrative public domain’, to foreground the various notions of masculinity that construct and structure it in relation to notions of female sexuality and changing structures of family. These notions of masculinity could be, the paper argues, a starting point for a historical inquiry into Kerala's modernity – an inquiry that would throw light on the past and the ways in which the contemporary is produced through its historical legacies.     

高校图书馆采购招标之辩证思维

辩证地分析了高校图书馆图书采购招标工作的意义与存在的不足,并提出了做好采购招标工作的可行性措施.     

2020-2021赛季CBA职业联赛后卫攻防能力的综合评价研究

以2020-2021赛季CBA常规赛后卫球员的攻防能力作为研究对象,对后卫球员的主要攻防指标进行因子分析,构建了后卫球员攻防能力的综合评价模型。结果显示:后卫球员攻防能力主要受投篮稳定能力、三分能力、地面攻防能力和空中对抗能力的影响;通过评价模型得出的后卫球员攻防能力综合得分及排序,与球员的综合实力和比赛表现趋于一致。     

2023年全国科技馆运行情况分析

2023年全国科技馆持续提升服务能力和服务效能,总体建设、教育活动均表现出色,接待观众数量同比更创新高,增长率超90%。本文在2023年全国科技馆调查结果的基础上进行了分析研究,希望为科技馆的规划编制、决策部署、业务发展、项目研究提供参考,从而推动现代科技馆体系高质量发展。     

力学与土木工程专业的力学课程教学

文章在阐述力学学科的建立和发展、力学课程在土木工程专业的地位和作用的基础上,结合我院土木工程专业力学课程教学的现状,提出了将力学教学与实践教学、毕业设计相结合的教学改革方法,以提高教学和学习的效果。     

Wearable skin-like optoelectronic systems with suppression of motion artifacts for cuff-less continuous blood pressure monitor

According to the statistics of the World Health Organization, an estimated 17.9 million people die from cardiovascular diseases each year, representing 31% of all global deaths. Continuous non-invasive arterial pressure (CNAP) is essential for the management of cardiovascular diseases. However, it is difficult to achieve long-term CNAP monitoring with the daily use of current devices due to irritation of the skin as well as the lack of motion artifacts suppression. Here, we report a high-performance skin-like optoelectronic system integrated with ultra-thin flexible circuits to monitor CNAP. We introduce a theoretical model via the virtual work principle for predicting the precise blood pressure and suppressing motion artifacts, and propose optical difference in the frequency domain for stable optical measurements in terms of skin-like devices. We compare the results with the blood pressure acquired by invasive (intra-arterial) blood pressure monitoring for >1500 min in total on 44 subjects in an intensive care unit. The maximum absolute errors of diastolic and systolic blood pressure were ±7/±10 mm Hg, respectively, in immobilized, and ±10/±14 mm Hg, respectively, in walking scenarios. These strategies provide advanced blood pressure monitoring techniques, which would directly address an unmet clinical need or daily use for a highly vulnerable population.     

高校网球教学中学生网球兴趣的培养和提高

网球是一项非常有益身心健康的运动,可以帮助人们提高自身的运动能力、增强体质,很多高校开设了网球课程。如何提高学生对网球的兴趣,使其积极参与到网球课程中来成为了高校网球教学面临的主要难题。对此,笔者从高校当前的网球教学现状出发,为提高学生网球兴趣提出相应的建议。     

刍议余暇体育走进大学校园

余暇体育是近几年在大学校园里风行的一股运动休闲热潮,它来自大学生的健身、娱乐需求,满足着他们身心健康、愉悦的需要.在研究余暇体育的基础上论及高校余暇体育的特点,阐述了高校开展余暇体育的意义.