Abstract
Background: Postural low back pain is a significant public health problem worldwide, due to the changing lifestyle. Many interventions are used in the treatment of postural low back pain, among them core stability exercise is one of the treatment plans. After exercise, cardiovascular system produces significant changes in parameters such as blood pressure (BP), heart rate, and respiratory rate.

Aims and Objectives: The aim of this study was to evaluate cardiovascular response to lumbar core muscle stability exercise in healthy young adults having postural low back pain.

Materials and Method: In the study, 40 patients with postural low back pain were considered. First, baseline parameters such as BP, heart rate, and respiratory rate were measured and recorded as L1, then all the patients were taught to perform lumbar core stability exercise (drawing in maneuver) and asked to hold for 10 s and 10 repetitions were performed. A pressure biofeedback was used at 40 mm Hg pressure and placed at the lower lumbar region; then patient was asked to perform exercise. After the exercise parameter were again recorded as L2.

Results: Paired t-test was used to compare L1 and L2 parameters, and GraphPad software was used for the analysis. For systolic BP, t-value and p-value were 7.89 and <0.001; for diastolic BP, 5.84 and <0.001; for heart rate, 7.52 and <0.001; and for respiratory rate, 6.53 and <0.001, respectively. The result of the study shows a significant difference in all cardiovascular parameters.

Conclusion: A significant difference was observed in the cardiovascular parameters after lumbar core stability exercise

Key words: Core Stability Exercise; Blood Pressure; Heart Rate; Respiratory Rate; Postural Low Back Pain