A slow, low-intensity run uses more fat for fuel but takes longer to burn a lot of calories in total. That’s why it’s advised to run longer than 30 minutes when running at a low-intensity. However, a faster, high-intensity run can burn more calories in a shorter time period. And even if just a small percentage of those calories come from fat, it can still significantly boost your weight loss!
Marie Rose Yardis, 38, wishes she'd known from the start that there's no need to go as low as possible with calories. "I worked with a trainer that told me I had to increase calories to support my workouts," she says. "It felt impossible, but I did it and lost a good amount of weight as a result! We all see in the media that cutting calories equals a smaller body. But when you are combining your nutrition habits with tough training sessions, you can really do a disservice to your body by underfeeding it!" (More on that here: Exactly How to Cut Calories to Lose Weight Safely)
Just because you’ve now achieved your target weight, it doesn’t mean you sit on the sofa all day watching TV. If you suddenly stop exercising after dieting, then you need to reduce your calories even further as the amount you are burning off with have slumped. Exercising for an hour a day is good for your overall health, energy levels, and sleep quality, as well as weight control. Don’t forget, exercise can include gardening, housework and other chores – it doesn’t have to take place in the gym.
There are a variety of definitions of what moderate-intensity exercise is, but it typically falls between about 70 to 80 percent of your maximum heart rate, which would be a level 4 to 6 on a 10-point perceived exertion scale. That means you are breathing harder than normal but can carry on a conversation without much difficulty and you feel pretty comfortable with what you're doing. The American College of Sports Medicine (ACSM) often recommends this level of intensity in its exercise guidelines. The lower end of this range usually incorporates the fat burning zone.