📄 Pages: 1-4 🏷️ Physiotherapy 📅 January-March 2026

Background: During any movement, the trunk bracing provided by the core muscles keeps all spinal segments in a biomechanically neutral position. The diaphragm, pelvic floor, and abdominal muscles collectively regulate intra-abdominal pressure and function synergistically to facilitate segmental movement. Spinal stability is mostly dependent on the diaphragm, a muscle that helps modulate intra-abdominal pressure. The diaphragmatic inspiratory muscle strength is indirectly measured by maximum inspiratory pressure (MIP). During lifting and during movement, the diaphragm, which is the primary breathing muscle, contributes to core stability.
Objective: To check the effect of core muscle exercise programme on change in maximum inspiratory pressure among healthy individual.
Methodology: An experimental study was done on 34 healthy subjects at a private biomedical institute who aged between 20 to 40 years. They were selected through purposive sampling. Using a capsule detecting pressure gauge for maximum inspiratory pressure (MIP) and a pressure biofeedback unit (PBU) for core muscle strength, subjects who satisfied the inclusion criteria were assessed. A customized exercise regime was given under the supervision of researcher for one month. 
Result: The study found the improvement in core strength by reduction in mean value of pressure biofeedback unit from mean of 41.68±2.70 (baseline) value to 40.65±1.07 (after exercise) with p value 0.01 Also there was improvement in Maximum Inspiratory pressure with P value<0.01 which was found highly significant. This could be due to our intervention which included core strength exercise. Additionally, we found with increase in core muscle strength there was improvement of MIP with P value 0.03.
Conclusion: The one month of core exercise program is effective in increasing core muscles strength thereby improving diaphragmatic strength as measured through MIP.