Implication of Back Extensor Muscles in the Appearance of Back Pain in 30 Beninese Pregnant Women

Abstract

The pregnancy involves important modifications in the pregnant woman. These include, we have the rachidian pains which are painful demonstrations sitting on the level of the rachis. They go from a simple embarrassment to an impossibility of carrying out daily and or professional tasks. The woman is thus confronted with serious health problems. Objective. Showing the role of the extensors of the back (thoracic Spinalis and longissimus lumbar) in the appearance of the rachidian pains in the pregnant woman. Methods. It is about an experimental and analytical study. Thirteen women are included according to criteria. Parameters ENR and RMS were measured using an electromyography of surface (EMGS). For the study, women written assent, a card of data collection was used to record the measured data. The statistical analysis was processed by means of the software Graph Pad PRISM5. Results. At the end of this work, it arises that values ENR and RMS of the various muscles vary according to the state of the woman and according to the trimester of pregnancy. It also comes out from our study that the percentage of fibers recruited of these two muscles varies with the evolution of the pregnancy. Conclusion. The extensors of the back (thoracic Spinalis and longissimus lumbar) are implied, in the appearance of the rachidian pains in the pregnant woman, by an increase in the electric activity of the latter, thus involving muscular tiredness.