Is walking enough cardio?

Related questions

1. How long can you run at threshold pace?
2. What should my easy run pace be?
3. Is walking 3 miles a day enough?
4. Is 12 minute mile too slow?
5. How fast is a 9.5 minute mile?
6. What is a good walking pace?
7. Is tempo and threshold pace the same?
8. What is a good walking speed for cardio?
9. What should my tempo pace be?
10. What is a good time for 10km run?

Tags

1. #thing
2. #brisk
3. #shoes
4. #miles
5. #great
6. #least
7. #cardio
8. #aerobic
9. #except
10. #pushes
11. #heart
12. #large
13. #muscles
14. #lungs
15. #works
16. #walking
17. #exercise