Walking puts all of the abdominal muscles to work. Make sure you swing your arms and contract your midsection while you walk, and maintain a brisk pace. Once you get your body accustomed to a daily walk, you'll hate to go a day without it. Walk for at least thirty minutes each time to achieve the aerobic effect, and be sure to drink plenty of water.
6. Fast once a week: While regularly underfeeding your body completely messes with your hormone balance, there’s sufficient research to suggest that intermittent fasting (IF)—or going without any food for set intervals—can actually help your insulin sensitivity and burn more fat. Researchers at LSU, for example, found that when people fasted all day, every other day, their fat oxidation increased and they actually lost 4 percent of their body fat in just 22 days. There are a lot of ways to go about IF, from fasting for 12 to 16 hours every day, to going 24 hours once a week. (Learn more about it here.)
This may explain why the fat-burning effects of eating more protein were confirmed in a study published in the American Journal of Physiology. One group was fed a high-protein diet (just over 1 gram per pound of body weight per day) while the second group consumed an amount closer to the lower recommendation of the RDA (recommended dietary allowance). The group eating the higher-protein diet burned the most fat.
Try this treadmill workout: Walk or jog on an incline for five to 10 minutes. Maintain a jog for another five to 10 minutes, then pick your pace up again and start running. "This doesn't have to be an all-out sprint," says Penfold, but you should be working hard enough that you can't carry a conversation. Spend five minutes running, then drop your pace back down to a jog. Continue alternating with five to 10 minutes of jogging and five to 10 minutes of running for 30 to 45 minutes.
For our purposes here, high-intensity cardio falls between about 80 to 90 percent of your maximum heart rate (MHR) or, if you're not using heart rate zones, about a 6 to 8 on a 10-point perceived exertion scale. What this translates to is exercise at a level that feels challenging and leaves you too breathless to talk in complete sentences. But you're not going all out, as in sprinting as fast as you can. There's no doubt that some high-intensity training work can be helpful for weight loss as well as improving endurance and aerobic capacity.
While the old thinking was that steady-state cardio sessions were best for burning fat, we now know that short and intense bursts of fast-paced cardio is much more effective. Hope Pedraza, an ACSM personal trainer and the creator of inBalance, a San Antonio-based fitness and wellness studio, suggests doing intervals that alternate between exercises that work different muscle groups.
If you've been lifting moderately heavy weights but are still looking to drop belly fat, it's time to pick up the intensity by using heavier weights and cutting down on rest time between reps, says Tyler Spraul, CSCS, a certified strength and conditioning specialist and the head trainer at Exercise.com. "Lifting heavy is where you see more an afterburn effect. Your body continues to burn calories even after you leave the gym," Spraul says. Just be sure that your technique doesn't suffer as you increase your weight, which can lead to injury. If you're new to strength training, this 15-minute total-body workout is a great place to start.