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Clinical and Experimental Obstetrics & Gynecology  2020, Vol. 47 Issue (3): 324-328    DOI: 10.31083/j.ceog.2020.03.5186
Original Research Previous articles | Next articles
Lung ventilation and the strength of the respiratory muscles of women in the third trimester of pregnancy in the aspect of physical activity
P. Okrzymowska1, *(), M. Kurtys1, N. Smolarek2, M. Kurzaj1, R. Slopien3, K. Rozek-Piechura1
1Department for Rehabilitation in Internal Medicine, Univercity School of Physical Education in Wroclaw, Poland
2Department of Mother’s and Child’s Health, University of Medical Sciences of Poznań, Poland
3Department of Infertility and Reproductive Endocrinology Poznan University of Medical Sciences, Poland
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Abstract  

The research concerned assessment of the respiratory function and function of the respiratory muscles of women in the third trimester of pregnancy in terms of the level of their physical activity. Using the ATS/ERS assessment criterion, there was no lung ventilation disorder in the studied groups of women. The results of the study indicate that in women who were more active, the values of all measured functional parameters of the respiratory system were higher. In almost all women, irrespective of the level of physical activity, the strength of the inspiratory muscles was found to decrease. The majority of surveyed women undertook physical activity in the form of walking with varying frequency during the week, but only a few of them had undertaken a more intense physical effort. Pregnant women frequently do not undertake more demanding activities due to concerns about the child.

Key words:  Pregnant women      Inspiratory muscle strength      Respiratory function     
Submitted:  02 March 2019      Accepted:  14 May 2019      Published:  15 June 2020     
*Corresponding Author(s):  PAULINA OKRZYMOWSKA     E-mail:  asrs@wp.pl

Cite this article: 

P. Okrzymowska, M. Kurtys, N. Smolarek, M. Kurzaj, R. Slopien, K. Rozek-Piechura. Lung ventilation and the strength of the respiratory muscles of women in the third trimester of pregnancy in the aspect of physical activity. Clinical and Experimental Obstetrics & Gynecology, 2020, 47(3): 324-328.

URL: 

https://ceog.imrpress.com/EN/10.31083/j.ceog.2020.03.5186     OR     https://ceog.imrpress.com/EN/Y2020/V47/I3/324

Table 1  — Somatic characteristics in the studied women
Variables Group I Group II p
Mean ± SD mean ± SD
Age [years] 28.67 ± 3.5 30.11 ± 3.18 0.08
Body height [cm] 168.28 ± 6.76 169.89 ± 4,54 0.45
Body weight [kg] 67.42 ± 11.09 75.89 ± 7.11 0.99
Table 2  — Descriptive characteristics of functional parameters and the significance of differences between groups
Variables Group I Group II p
Mean ± SD mean ± SD
VC [l] 3.46 ± 0.54 3.57 ± 0.46 0.65
VC % 89.73 ± 11.56 91.23 ± 11.39 0.78
FVC [l] 3.39 ± 0.55 3.5 ± 0.5 0.67
FVC % 89.48 ± 12.38 90.89 ± 12.16 0.81
FEV1 [l] 2.99 ± 0.47 3.08 ± 0.55 0.69
FEV1 [%] 90.27 ± 11.83 91.76 ± 15.59 0.82
PImax [kPa] 3.89 ± 2.7 4.18 ± 1.14 0.76
PImax [%] 35.17 ± 24.3 37.79 ± 10.5 0.77
PEmax [kPa] 3.7 ± 1.66 3.71 ± 2.54 0.99
PEmax [%] 41.89 ± 18.78 42.37 ± 28.92 0.97
FEV1 % VCmax % 88.66 ± 11.19 85.97 ± 5.8 0.38
MEF50 [L/s] 12.73 ± 25.77 4.39 ± 1.42 0.86
MEF50 [%] 81.65 ± 38.96 96.03 ± 30.8 0.79
PEF [l/s] 13.56 ± 24.14 5.49 ± 1.5 0.72
PEF [%] 67.93 ± 28.3 74.94 ± 20.85 0.38
Assessment of physical activity 1.56 ± 0.53 2.67 ± 0.5 0.96
MET [min./week] 850.5 ± 292.10 3884.44 ± 1207.35 0.00
Walking [days] 5.22 ± 1.79 6.78 ± 0.67 0.04
Walking [h] 0.88 ± 0.49 2.78 ± 0.97 0.00
Sitting [h] 6.39 ± 2.42 5.67 ± 2.69 0.53
Activity before pregnancy 0.44 ± 0.53 0.78 ± 0.44 0.00
Table 3  — Correlation of measured parameters in group 1 and group 2
Variables Correlation of Spearman’s rank order
Marked correlation coefficients are significant from p < 0. 05
Group I Group II
PImax (mmHg) PEmax (mmHg) MET-min./week PImax (mmHg) PEmax (mmHg) MET-min./week.
Age 0.44 -0.26 -0.53 -0.57 -0.56 -0.18
Body height [cm] 0.1 0.83 0.78 -0.59 -0.83 -0.23
Body weight [kg] 0.23 0.02 -0.18 -0.1 -0.42 -0.07
PImax [mmHg] 1.00 0.42 -0.1 1.00 0.87 -0.29
PImax [%] 1.00 0.42 -0.1 1.00 0.87 -0.29
PEmax [mmHg] 0.417 1.00 0.71 0.87 1.00 -0.08
PEmax [%] 0.47 0.97 0.76 0.87 1.00 -0.08
VCmax [l] 0.53 0.33 -0.05 -0.17 -0.02 -0.05
VCmax [%] 0.62 0.05 -0.4 0.08 0.35 0.05
FEV1 [l] 0.55 0.63 0.36 0.07 0.13 -0.24
FEV1 [%] 0.83 0.25 -0.18 0.02 0.22 -0.08
FVC [l] 0.45 0.37 0.08 -0.1 0.04 -0.07
FVC [%] 0.58 -0.02 -0.42 0.08 0.28 -0.09
FEV1 % VCmax 0.28 0.37 0.38 0.17 0.00 0.2
MEF50 [l/s] 0.6 0.6 0.21 0.32 0.28 -0.07
MEF50 [%] 0.67 0.02 -0.24 0.48 0.53 -0.08
PEF [l/s] 0.33 0.38 -0.11 0.23 0.35 0.25
PEF [%] 0.43 -0.33 -0.73 0.43 0.55 0.13
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