The effect of crossing legs on blood pressure: a randomized single-blind cross-over study.

Abstract:

BACKGROUND:Although there is a theoretical basis for crossing legs to increase blood pressure, there are no published data addressing this question. As a result guidelines for measurement of blood pressure are not consistent in recommending that patients legs should not be crossed during measurement. OBJECTIVE:To determine the effect of crossing legs on blood pressure. METHODS:Fifty healthy volunteers and 53 patients with hypertension were randomly allocated in a study with a cross-over design to having seated blood pressure measured with their legs in three different positions: feet flat on the floor and legs crossed using two common methods. The blood pressures were assessed by an investigator who was blinded to the leg positions and used a fully automated sphygmomanometer. RESULTS:Crossing legs during blood pressure measurement increased systolic (by average 8.1 mmHg, 95% confidence interval 5.1-11.1 mmHg for method 1; 10.5 mmHg, 6.5-14.6 mmHg for method 2) and diastolic (by 4.5 mmHg, 1.5-7.5 mmHg for method 1; 4.0 mmHg, 2.0-6.0 mmHg for method 2) blood pressures in patients who have hypertension. Crossing legs increased systolic blood pressure (by 2.5 mmHg, 1.3)3.8 mmHg for method 1; 2.3 mmHg, 0.9-3.7 mmHg for method 2) in the healthy volunteers but had little effect on diastolic blood pressure. The cardiovascular-risk class increased for a large number of the hypertensive patients but for fewer of the normotensive subjects. CONCLUSIONS:Blood pressure increases when legs are crossed and this increases the estimation of cardiovascular risk for many patients. Care should be taken to ensure that the patients feet are flat on the floor when measuring their blood pressure.

journal_name

Blood Press Monit

authors

Peters GL,Binder SK,Campbell NR

subject

Has Abstract

pub_date

1999-04-01 00:00:00

pages

97-101

issue

2

eissn

1359-5237

issn

1473-5725

journal_volume

4

pub_type

临床试验,杂志文章,随机对照试验
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    pub_type: 临床试验,杂志文章

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    更新日期:2016-06-01 00:00:00

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    pub_type: 杂志文章,评审

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    pub_type: 杂志文章

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    authors: Wang X,Qiu J,Wang Y,Cai Z,Lu X,Li T

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    pub_type: 杂志文章

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    pub_type: 杂志文章

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    authors: Cameron JD,Stevenson I,Reed E,McGrath BP,Dart AM,Kingwell BA

    更新日期:2004-10-01 00:00:00

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    pub_type: 临床试验,杂志文章

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    authors: Beime B,Deutsch C,Krüger R,Zimmermann E,Bramlage P

    更新日期:2016-12-01 00:00:00

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    pub_type: 临床试验,杂志文章

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    journal_title:Blood pressure monitoring

    pub_type: 杂志文章

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    journal_title:Blood pressure monitoring

    pub_type: 杂志文章

    doi:

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    pub_type: 杂志文章

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    authors: Coccina F,Pierdomenico AM,Cuccurullo C,Pierdomenico SD

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    pub_type: 杂志文章

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    pub_type: 杂志文章

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    更新日期:2008-08-01 00:00:00

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    journal_title:Blood pressure monitoring

    pub_type: 临床试验,杂志文章

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    更新日期:2012-04-01 00:00:00

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    journal_title:Blood pressure monitoring

    pub_type: 杂志文章,多中心研究,随机对照试验

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    pub_type: 杂志文章,评审

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    pub_type: 杂志文章,评审

    doi:

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    pub_type: 杂志文章

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    pub_type: 杂志文章,随机对照试验

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