What is a one-sentence summary of the following article?
Research shows that interval training, or alternating short bursts of energy with brief resting periods, can improve muscle and build endurance more quickly than traditional exercise. Do aerobic exercises which get your heart pumping, burn calories quickly and facilitate fat loss all over the body, including your belly. You can't "spot-burn" belly fat, but it's usually the first to burn off when you exercise, regardless of body shape or size. Time your miles. Track your progress by timing how long it takes to run a mile. As cardiovascular stamina improves, you'll notice the time going down. Correct shin splints. If you get painful shin splints (pain along the front of your shins when you run), you may be over-pronating (landing with most of your weight on the outer side of your foot). There are shoes designed specifically to help alleviate this. Don't overdo it. Start with three cardio workouts a week, or alternate cardio with lighter exercises like walking for thirty minutes daily. Pushing yourself hard every day doesn't allow your body enough time to recover and build up muscle, and could lead to injury. Abdominal crunches and sit-ups should build strong muscles, but you might not see them under belly fat. In fact, crunches might actually make your stomach look bigger as you build up thicker abs. Instead, if you strengthen your back muscles, your posture will improve and pull in your belly.[[Image:Lose Belly Fat Step 9
Exercise in small bursts. Ramp up the cardio. Skip the crunches for now.