Effect of Neuromuscular Electrical Stimulation on Phrenic Nerve Regeneration Post Cardiac Surgeries

It will be applied on diaphragm, 30 min per session ,3 days/week for 4 weeks at a stimulation frequency of 30 Hz, pulse width of 400 μs, the intensity was gradually increased until visible muscle contraction was observed.

The participants will receive traditional physiotherapy ( postural drainage, percussion , diaphragmatic breathing, phase 1 cardiac Rehabilitation and balance training ) three times per week for 4 weeks