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Acute improvement in hemodynamic control after osteopathic manipulative treatment in the third trimester of pregnancy.


ABSTRACT:

Objectives

The physiological changes that occur during pregnancy, including increased blood volume and cardiac output, can affect hemodynamic control, most profoundly with positional changes that affect venous return to the heart. By using Osteopathic Manipulative Treatment (OMT), a body-based modality theorized to affect somatic structures related to nervous and circulatory systems, we hypothesized that OMT acutely improves both autonomic and hemodynamic control during head-up tilt and heel raise in women at 30 weeks gestation.

Design

One hundred subjects were recruited at 30 weeks gestation.

Setting

The obstetric clinics of UNTHealth in Fort Worth, TX.

Intervention

Subjects were randomized into one of three treatment groups: OMT, placebo ultrasound, or time control. Ninety subjects had complete data (N=25, 31 and 34 in each group respectively).

Main outcome measures

Blood pressure and heart rate were recorded during 5 min of head-up tilt followed by 4 min of intermittent heel raising.

Results

No significant differences in blood pressure, heart rate or heart rate variability were observed between groups with tilt before or after treatment (p>0.36), and heart rate variability was not different between treatment groups (p>0.55). However, blood pressure increased significantly (p=0.02) and heart rate decreased (p<0.01) during heel raise after OMT compared to placebo or time control.

Conclusions

These data suggest that OMT can acutely improve hemodynamic control during engagement of the skeletal muscle pump and this was most likely due to improvement of structural restrictions to venous return.

SUBMITTER: Hensel KL 

PROVIDER: S-EPMC3893141 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature

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Publications

Acute improvement in hemodynamic control after osteopathic manipulative treatment in the third trimester of pregnancy.

Hensel Kendi L KL   Pacchia Christina F CF   Smith Michael L ML  

Complementary therapies in medicine 20130830 6


<h4>Objectives</h4>The physiological changes that occur during pregnancy, including increased blood volume and cardiac output, can affect hemodynamic control, most profoundly with positional changes that affect venous return to the heart. By using Osteopathic Manipulative Treatment (OMT), a body-based modality theorized to affect somatic structures related to nervous and circulatory systems, we hypothesized that OMT acutely improves both autonomic and hemodynamic control during head-up tilt and  ...[more]

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