“Pulmonary function in third trimester – A Cross- Sectional study”.


  • Sushmita Jha Student
  • Dr. Archana Nagargoje




Third trimester, Pulmonary function test, Physiotherapy


ABSTRACT: The present Cross sectional study was conducted on 43 women who were in their third trimester. Analysis of the Pulmonary function of the individual was done by using the Pulmonary Function Test.

Methodology: It was an observational study with 4 months duration. Total 43 Pregnant women in Third trimester were recruited with purposive sampling method. The Outcome measure was FEV1, FVC, FEV1/FVC & PEFR which was seen by using Pulmonary Function Test. Result: The predicted and performed value of FEV1, FVC, PEFR were compared using Paired t test where the p value was <0.0001 which was Extremely Significant. The reduction seen between Predicted and Performed values was 46%, 53% an 40%. The predicted and performed value of FEV1/FVC were compared using Paired t test where the p value was 0.6232 which showed Not Significant. Conclusion: The study concludes that Changes are seen in Pulmonary Function during the Third trimester i.e FEV1, FVC and PEFR decreases during the Third trimester whereas there is no change seen in FEV1/FVC ratio.


King JC. Physiology of pregnancy and nutrient metabolism. The American journal of clinical nutrition. 2000 May 1;71(5):1218S-25S.

Hytten FC. Clinical physiology in obstetrics - Oxford: Blackwell, 1980.

Campbell LA, Klocke RA. Implications for the pregnant patient. American journal of respiratory and critical care medicine. 2001 Apr 1;163(5):1051-4.

MARX GF, MURTHY PK, ORKIN LR. Static compliance before and after vaginal delivery. British journal of anaesthesia. 1970 Dec 1;42(12):1100-4.

Gee JB, Packer BS, Millen JE, Robin ED. Pulmonary mechanics during pregnancy. The Journal of clinical investigation. 1967 Jun 1;46(6):945-52.

LoMauro A, Aliverti A. Respiratory physiology of pregnancy: physiology masterclass. Breathe. 2015 Dec 1;11(4):297-301.

Pulmonary Function Testing- Kevin Mc Carthy- 2 Feb 2018. (Google Scholar)

Grindheim G, Toska K, Estensen M, Rosseland L. Changes in pulmonary function during pregnancy: a longitudinal cohort study. BJOG 2012;119:94–101.

Rasika R Takke, D. A. Effects of different trimesters of pregnancy on pulmonary function test. International Journal of Multidisciplinary Research and Development. 2017:168-171.




How to Cite

Jha, S., & Nagargoje, D. A. (2021). “Pulmonary function in third trimester – A Cross- Sectional study”. VIMS JOURNAL OF PHYSICAL THERAPY, 3(1), 4–9. https://doi.org/10.46858.VIMSJPT.3101



Original Article