Journal List > Korean J Women Health Nurs > v.15(1) > 1037206

Chang, Kim, Ko, Bae, and An: Effects of Abdominal Breathing on Anxiety, Blood Pressure, Peripheral Skin Temperature and Saturation Oxygen of Pregnant Women in Preterm Labor



This study was done to examine the effects of abdominal breathing on VAS-Anxiety (VAS-A), blood pressure, peripheral skin temperature and saturation oxygen in pregnant women in preterm labor.


The study design was a matched control group interrupted time series. Forty-six women matched to gestational age were assigned to either the experimental group (26) or control group (20). Data were collected between March 2007 and May 2008. For the experimental treatment the women performed abdominal breathing 30 times, which took 5 minutes, and did one set of 5-minute abdominal breathing daily for three days. Data collection was done before and after the abdominal breathing to measure VAS-A, blood pressure, peripheral skin temperature and oxygen saturation. Descriptive, χ2, Mann-Whitney U tests were used to analyze the data with the SPSS/PC+Win 15.0 program.


For the experimental group there were significant decreases in VAS-A (Z=-4.37, p=.00), systolic blood pressure (Z=-3.38, p=.00), and an increase in skin temperature (Z=-4.50, p=.00) and oxygen saturation (Z=-3.66, p=.00).


These findings suggest that abdominal breathing in pregnant women in preterm labor results in decreases in anxiety(VAS-A) including biological evidences such as systolic blood pressure, and increases in peripheral skin temperature and oxygen saturation. Further longitudinal study is needed on the lasting effects and obstetric and neonatal outcomes following abdominal breathing.

Figures and Tables

Figure 1
Research framework
Figure 2
Research design
Table 1
Time process of abdominal breathing for one minute

I = Inspiration; E = Expiration.

Table 2
Homogeneity test of general characteristics between the experimental and control groups (N=46)

*p < .05. Adm.-IUP = Admission-Intra Uterine Pregnancy

Table 3
Differences in anxiety, blood pressure, peripheral skin temperature and oxygen saturation between the experimental and control groups (N=46)

ED = Experimental day.


This study was financially supported by the Korea Research Foundation (No.2006-0294-E00087).


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