Exp Physiol:10分钟步行便可逆转久坐所造成的血管损伤

2015-09-30 MedSci MedSci原创

10分钟步行便可逆转久坐所造成的血管损伤对于大多数公司来说,一般采取八小时制工作时间,其中大部分时间员工需要坐着办公。科技的发展增加了更多的久坐不动的生活方式,公众也越来越关注对久坐对心血管健康的影响。近日,来自密苏里堪萨斯大学医学院的研究人员发现,久坐6个小时后,血管的功能可受损,但是坐久后仅需步行10分钟便可逆转久坐所造成的血管损伤。 “轻易地williamhill asia 的时间便被工作所占据了因而也失去了放

对于大多数公司来说,一般采取八小时制工作时间,其中大部分时间员工需要坐着办公。科技的发展增加了更多的久坐不动的生活方式,公众也越来越关注对久坐对心血管健康的影响。近日,来自密苏里堪萨斯大学医学院的研究人员发现,久坐6个小时后,血管的功能可受损,但是坐久后仅需步行10分钟便可逆转久坐所造成的血管损伤。 

“轻易地williamhill asia 的时间便被工作所占据了因而也失去了放松的时间,造成了williamhill asia 长时间不能活动的状况,” Jaume Padilla说道,“williamhill asia 的研究发现,久坐6小时或以上时,腿部的血流量可大大减少,但是,仅需要步行10分钟便可扭转久坐对血管的损伤。”

该研究中,研究人员对比了11名健康年轻男性久坐前后的血管功能。结果显示,小腿腘动脉的血流量可在久坐6小时后显著降低。随后,所有的研究对象进行短暂的走动后,研究人员发现,10分钟的步行便可修复受损的血管功能,并改善血管的血流量。

“血流量降低时,动脉管壁上的血液受到的剪切力会减小,” Padilla说道,“适当的剪切力有益于动脉的健康,而低水平食物剪切力则可有损于血管的健康,并可降低血管扩张的能力。扩张功能是血管健康的标志, 扩张能力越强,对外界反应越敏感说明血管越健康。”

很多的工作场所是久坐不动的环境,重要的是,人们应当认识到久坐对血管健康的损害很严重。但是通过短暂的步行便可逆转久坐对血管所造成的损伤。

“研究显示,减短久坐的时间有益于机体的代谢和心血管健康,” Padilla说道,“但是,仍需更多的研究以确定久坐是否会导致长期的血管并发症。”

原始出处:

Restaino RM, Holwerda SW, Credeur DP, Fadel PJ, Padilla J.Impact of prolonged sitting on lower and upper limb micro- and macrovascular dilator function.Exp Physiol. 2015 Jul 1;100(7):829-38

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    2016-07-02 yuanming15
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    2015-12-05 lyh994

    这样的研究可再深入

    0

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