I am correcting your question and answering. Yes by doing physical activity you can reduce your diabetic medications but it depends on your current blood glucose levels. Like if it is 200 mg/dl along with HbA1c of 8% you can certainly reduced the medications once your blood glucose becomes better (HbA1c less than 7 percent).But you had very poor control so not possible in your case. As your triglyceride is high your require urgent control of your blood glucose and treatment of your triglycerides.