JAHA:糟糕的空气质量并不能消除锻炼所带来的心脏获益

2018-08-19 佚名 嘉音

7月18日,在线发表于《Journal of the American Heart Association》杂志上的一项研究表明,即使在空气质量较差的地区,正常进行身体锻炼还是可以减少首次心脏病的发生和心脏病的复发。虽然目前已知运动会降低心血管疾病风险,但空气污染会增加心血管疾病、哮喘和慢性阻塞性肺病的风险。然而,目前几乎没有关于空气质量差是否会抵消身体锻炼对预防心脏病发作的保护作用的数据。因此丹

7月18日,在线发表于《Journal of the American Heart Association》杂志上的一项研究表明,即使在空气质量较差的地区,正常进行身体锻炼还是可以减少首次心脏病的发生和心脏病的复发。

虽然目前已知运动会降低血管疾病风险,但空气污染会增加血管疾病、哮喘和慢性阻塞性肺病的风险。然而,目前几乎没有关于空气质量差是否会抵消身体锻炼对预防心脏病发作的保护作用的数据。因此丹麦哥本哈根大学Nadine Kubesch博士及其同事研究了休闲时间以及交通相关的体力活动对心肌梗塞(MI)风险的影响,以及交通相关的空气污染是否会降低了这些体力活动对MI的潜在益处。

研究人员评估了51868例50~65岁成年人的户外体力活动水平(运动,骑自行车,步行和园艺)和二氧化氮的暴露(交通产生的NO₂污染物),比较了自我报告的体力活动水平和生活方式因素与心脏病发作之间相关性。在随访的17.7年时间里,有2936例首次心脏病发作和324例复发性心脏病发作。研究人员使用每个受试者居住区域的交通污染监测数据来估算平均NO₂暴露量,结果发现:较高的NO₂暴露水平与更高的心脏病发作风险相关,然而,那些体力活动较多的人的心脏病风险较低;每周骑自行车四小时或更长时间可使复发性心脏病发作的风险降低31%。

无论空气质量如何,当所有四种类型的体育活动(每周共四小时或更长时间)结合在一起时,复发性心脏病发展风险减少了58%;参与体育运动的人的首次心脏病发作风险降低15%,骑自行车与风险降低9%有关。相比于居住在低NO₂暴露水平的受试者,高暴露水平地区患者的首次心脏病发作风险增加17%,复发性心脏病发作风险增加39%。

Kubesch博士说到,“我们的研究表明,即使暴露于空气污染的环境中,在与哥本哈根相似的城市中,运动锻炼仍可以降低心脏病发作的风险。我们的研究结果支持现有的证据,即使是中等水平的常规身体活动,例如主动通勤,也足以使人们获得这些心血管的健康益处”

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    2018-08-21 zhaohui6731
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    2018-08-20 flysky120

    空气质量每个地方不同的

    0

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    2018-08-19 jingjing

    运动锻炼应该是健康第一要素,对各类疾病都应该有益。但是国内这方面研究太少

    0

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    2018-08-19 131****1460

    学习了受益匪浅

    0

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    2018-08-19 12399b99m28(暂无昵称)

    哥本哈根的空气质量能代表糟糕?

    0

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    2018-08-19 hilda0308

    锻炼仍可有心脏获益,但是肺部的不良影响是怎样

    0

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