1. Significance of HbA1c Reduction: Lowering your HbA1c from 9.4 to 6.4 is a significant achievement, indicating improved blood sugar control.

2. Role of Exercise: Exercise is beneficial for managing diabetes as it enhances insulin sensitivity and helps control blood sugar levels.

3. Comprehensive Management: While exercise is crucial, diabetes management typically requires a combination of lifestyle changes, including diet and sometimes medication.

4. Individual Factors: Your ability to manage diabetes solely through exercise depends on factors like the duration of your diabetes, overall health, and other medical conditions.

5. Medical Guidance: Consult your healthcare provider before altering your treatment plan to ensure safe and effective diabetes management.

In summary, exercise is a powerful tool in diabetes care but usually works best alongside other strategies. Your doctor can help tailor a plan that suits your specific needs.