How do you achieve this?
This can be done in a variety of ways that suit everyone, walking, jogging, dancing, running, even gardening , the main thing is that you maintain the pace that you do to stay within the zone for it to be effective over a period of time say 30 mins.
One of the other main ways of doing this is by resistance training, this can be with body weight, resistance bands, TRX workouts at home or in a gym setting dumbbells, barbells or machine workouts. The more you can increase the intensity the better you will maintain the fat burning zone.
If you need help with your training and would like some guidance take a look at my online coaching options to see what way we can work together to get you achieving your own fitness goals.
The Mayo Clinic is a great source of information that you can check yourself too as another reference check it out.