Ultra FX10 Now That does not mean go out and run a marathon, but 15 to twenty minutes two days a week is professional. Strong cardio will help system burn more fat faster, which will allow you to you get ripped muscles quicker, not to mention the benefits that running has for the heart. Do interval training like walk for a minute, and be able to run to buy minute or two. Then switch upward to walk for two minutes and run for five, just keep it changing all the time.