Effect of Trunk Extensor Muscle Fatigue on Postural Stability in Women Undergone Lower Segment Cesarean Section

Abstract

Background: Cesarean delivery involves thorough disruption of the anterior abdominal wall and is related
with greater reports of postpartum pain and slower more painful recovery than vaginal birth. An increase in
the inter-recti distance puts postural stability in hazard. It also weakens the abdominal muscles and influence
their functions. This can result in an altered trunk mechanics, impaired pelvic stability and postural change,
that leaves the lumbar spine and pelvis more susceptible to injury. Low endurance of back and hip muscles
has been reported in women after delivery which can result into pelvic girdle pain and lumbar pain. There
is lack of research on this topic, indeed this made us to study the effect of trunk extensor muscle fatigue on
postural stability in women undergone lower segment cesarean section.
Objectives: To find the effect of trunk extensor muscle fatigue on postural stability in women undergone
lower segment cesarean section.
Method: In this observational study, 37 women undergone cesarean section in age group 22 to 35 years were
included. One- Leg Standing Balance Test and Functional Reach Test were the major outcome measures to
assess postural stability in three conditions: No fatigue, Fatigue and Recovery Condition. Borg 6-20 scale
was used to check the exertion level after inducing fatigue in women. Later, data was collected and analysis
was done.
Result: Both One- Leg Standing Balance Test and Functional Reach Test showed a decrease from No
fatigue condition to Fatigue condition. The results indicate that postural stability was significantly reduced
in the Fatigue condition as compared to the No fatigue condition.
Conclusion: Trunk extensor muscle fatigue significantly reduces the postural stability in women undergone
lower segment cesarean section.