Time spent sitting at a screen matters less if you are fit and strong
屏幕前久坐伤身？多运动身体棒就能减少伤害
The impact of screen time on cardiovascular disease, cancer incidence and mortality may be greatest in people who have lower levels of grip-strength, fitness and physical activity, according to a study published in the open access journal, BMC Medicine.
最近发表在开放获取期刊《BMC医学》（BMC Medicine）上的一项研究发现，握力较差、身体素质较差以及运动较少的人，最容易因久坐于屏幕前而增加心血管疾病患病率、肿瘤患病率和死亡率。
Researchers at Glasgow University, UK, found that the amount of leisure time spent watching a television or computer screen had almost double the impact on the risk of mortality, cardiovascular disease and cancer in people with low grip strength or low fitness levels than on participants who had the highest levels of fitness and grip strength. Increasing strength and fitness may offset the adverse health consequences of spending a large proportion of leisure time sitting down and watching a screen, according to the authors.
看电视或用电脑时久坐会提高死亡率、心血管疾病发病率和肿瘤发病率，而来自英国格拉斯哥大学的研究者们发现，这种对健康的损害效果，在低握力或低身体素质的参与者中是高握力、高身体素质参与者的2倍。作者说，增强力量、改善身体素质可能可以抵消久坐带来的负面影响。
Dr Carlos Celis, corresponding author of the study said: “Our study shows that the risks associated with sedentary behaviour are not the same for everyone; individuals with low physical activity experience the greatest adverse effects.
研究的通讯作者Carlos Celis博士说：“我们的研究表明，在久坐带来的健康风险面前并非人人平等。不爱运动的人受到的影响最大。”
“This has potential implications for public health guidance as it suggests that specifically targeting people with low fitness and strength for interventions to reduce the time they spend sitting down may be an effective approach.”
“这可能可以给公共卫生指南的制定带来一些启发，因为我们的研究显示针对身体素质较差、力量较小的人进行干预，减少他们静坐的时间，可能是种很有效的办法。”
The authors suggest that measuring grip strength could be an efficient way to target individuals that may benefit most from public health interventions to reduce screen time.
作者们指出，握力可以作为一个有效的衡量指标，帮我们找到最能从减少静坐时间中获益的人群。
Dr Celis explained: “While fitness testing can be difficult in healthcare and community settings, grip strength is a quick, simple and cheap measure, therefore it would be easy to implement as a screening tool in a variety of settings.”
Celis博士解释说：“想在医保和社区体系下进行身体素质测验并不容易，检测握力是一种快捷、简单又便宜的方法，所以容易在不同的场景下作为筛查工具进行推广。”
The study analysed data from 391,089 participants from the UK Biobank, a large, prospective, population-based study that includes data on all-cause mortality, cardiovascular disease and cancer incidence, along with screen time, grip strength, fitness and physical activity.
这个研究中分析的共391,089人的数据来自一个大规模前瞻性人群研究——英国生物样本库（UK Biobank），这个研究中包含的数据包括全因死亡率、心血管疾病和肿瘤的发病率，以及坐在屏幕前的时间、握力、身体素质和体力活动情况。
The researchers caution that the use of self-reported screen time and physical activity data may have impacted on the strength of the associations drawn in this study. The observational nature of the study does not allow for conclusions about cause and effect.
研究者也提醒，研究中的静坐时间和体力活动情况均为自我报告数据，可能会影响到最后结论中的关联强度。作为观察性研究，本文也无法得出因果性的结论。
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For interviews contact Elizabeth McMeekin or Ali Howard in the University of Glasgow Communications and Public Affairs Office on 0141 330 4831 or 0141 330 6557; or email Elizabeth.mcmeekin@glasgow.ac.uk or ali.howard@glasgow.ac.uk 如果想进行采访，请联络格拉斯哥大学传播与公共事务办公室的Elizabeth McMeekin 或Ali Howard。您可以致电+44 0141 330 4831 或+44 0141 330 6557，也可以发送邮件至Elizabeth.mcmeekin@glasgow.ac.uk 或 ali.howard@glasgow.ac.uk
Notes to editor附注:
1. Research article原文:
Associations of discretionary screen time with mortality, cardiovascular disease and cancer are attenuated by strength, fitness and physical activity: findings from the UK Biobank study
Celis et al. BMC Medicine 2018
DOI: 10.1186/s12916-018-1063-1
When the embargo lifts the article will be available at: 限制令解除后，原文链接如下： https://bmcmedicine.biomedcentral.com/articles/10.1186/s12916-018-1063-1 Please name the journal in any story you write. If you are writing for the web, please link to the article. All articles are available free of charge, according to BMC's open access policy. 报道时请提及期刊名称《BMC医学》（BMC Medicine）。如果您是为网站写作稿件，请附上原文链接。由于BMC的开放获取政策，本刊所有文章都可以免费阅读。
2. BMC Medicine is the flagship medical journal of the BMC series. An open access, open peer-reviewed general medical journal, BMC Medicine publishes outstanding and influential research in all areas of clinical practice, translational medicine, medical and health advances, public health, global health, policy, and general topics of interest to the biomedical and sociomedical professional communities. We also publish stimulating debates and reviews as well as unique forum articles and concise tutorials.
《BMC医学》（BMC Medicine）是BMC系列期刊中的医学类旗舰刊。《BMC医学》是一本开放获取的同行评审医学期刊，发表临床执业、转化医学、医学和健康方向的进展、公共卫生、全球健康、政策以及生物医学和社会医学专业人士感兴趣的所有相关领域中的优秀、有影响力的研究。我们还会发表辩论文章和综述。
3. A pioneer of open access publishing, BMC has an evolving portfolio of high quality peer-reviewed journals including broad interest titles such as BMC Biology and BMC Medicine, specialist journals such as Malaria Journal and Microbiome, and the BMC series. At BMC, research is always in progress. We are committed to continual innovation to better support the needs of our communities, ensuring the integrity of the research we publish, and championing the benefits of open research. BMC is part of Springer Nature, giving us greater opportunities to help authors connect and advance discoveries across the world.
BMC作为开放获取出版的先锋，不断推出一系列高质量的同行评议期刊，这包括了BMC Biology 和BMC Medicine等涵盖范围较广的期刊，以及Malaria Journal、Microbiome和BMC系列期刊等专门刊物。BMC认为，科研永不止步。因此，我们致力于不断创新，以更好地满足科学共同体的需要，确保所发表的科研成果的完整性，并推广开放研究的益处。BMC是施普林格∙自然旗下机构，这让我们更有机会帮助世界各地的作者相互沟通并促进科学发现。
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Journal
BMC Medicine