Effect of Walking Exercise on Functional Capacity and Productivity in Patients After Coronary Artery Bypass Graft

The goal of this clinical trial is to assess the effect of walking exercise on functional capacity and productivity in patients after Coronary Artery Bypass Graft who have completed phase II cardiac rehabilitation. The main question it aims to answer are: 1\. What is the effect of walking exercise on functional capacity and productivity in patients after Coronary Artery Bypass Graft? Participants performed the exercise on the day agreed upon with the researcher. Respondents did walking exercises 3 times per week for 4 weeks with a duration of 10 minutes of warm-up, 30 minutes of walking exercises, and 10 minutes of cooling down. Respondents also did leg straightening every day for 4 weeks with a frequency of 1 time a day for 10 minutes. Researchers compared between intervention and control group to see if the effect between respondents who did walking and leg straightening exercises and also respondents who only did leg straightening.