This study aims to investigate randomized controlled trial to evaluate whether reducing sedentary behavior improves recovery in post-cardiac surgery patients. Participants are assigned to either a behavioral intervention that substitutes sitting with light activity or to usual care. Changes in exercise capacity and quality of life are the primary measured outcomes. It is hypothesized that the intervention group will demonstrate superior gains in both physical function and well-being. The results could inform a valuable adjunct to existing cardiac rehabilitation programs.

This randomized controlled trial (RCT) aims to determine the efficacy of a targeted sedentary behavior (SB) modification program as a component of early recovery following cardiac surgery. Participants are randomly allocated to either an intervention group, receiving structured counseling and feedback to replace prolonged sitting with frequent bouts of light-intensity physical activity, or a control group receiving standard postoperative care alone. subjective enhancements in health-related quality of life, assessed via validated questionnaires.The randomized control trial involving 24 patients.The study duration will be 3 months with assesment conducted at baseline,mid and end of intervention.Group A(interventional group recieving Sedantary Behavior protocol+Cardiac Rehab),Group B(Control group recieving only Cardiac Rehab).

Inclusion Criteria:

• Patient Aged 50-80 years (represents the majority cases)
• Natural decline in physical capacity, making them an ideal population for studying these outcomes)
• Underwent elective or emergency cardiac surgery (once patient is in ward)/1

Exclusion Criteria:

• Those requiring invasive mechanical ventilation
• Individuals with significant cognitive impairment affecting consent or compliance
• Pregnant women or Lactating Mother