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It's all about short bursts of activity. Rest, then repeat.
When you're working hard to get fit and lose weight, you want a routine that offers maximum results. And you don't even need to become a gym rat; studies show that shorter bouts of exercise are more effective for fat loss. But what kind of exercise burns the most calories?
Cardio, of course, will torch cals. Running on a treadmill will burn 25-39% more calories than doing kettlebell swings at the same level of exertion, according to a 2012 study in the Journal of Strength and Conditioning Research. But your best bet for weight loss is a routine that combines cardio and strength.
Yes, if you're walking or running like mad without results, building muscle may be the key that unlocks the scale. Why? Muscles are metabolically active, so they burn calories even when you're not exercising. To fit cardio and strength into your workout, consider interval training.
Working out in intervals is one way to reap the benefits of cardio and strength, while maximizing your calorie burn in a short amount of time. Interval workouts involve alternating between short bursts of intense effort and periods of lower intensity or rest.
The intensity resets your metabolism to a higher rate during your workout, so it takes hours for your body to cool down again. This is what's known as EPOC (excess post-exercise oxygen consumption). That means you burn calories long after you’ve finished your workout compared to doing a workout at a continuous moderate pace (a.k.a. LISS), according to a 2017 study from the European Journal of Applied Physiology.
"Intervals are a great way to promote weight loss beyond just the EPOC effect. A lot of weight loss comes from the mental side of the spectrum too," says Chris Ryan, one of MIRROR's founding trainers. "Intervals offer a great way to harness individual victories after each rep or round of exercise—and not simply looking at the workout as a whole."
To help you find the a calorie-burning workout that fits your lifestyle and goals, we rounded up the best exercises for weight loss here. If you're working out in intervals, do the exercise for 30 seconds every minute and rest for the remaining 30 seconds. As you progress, you can increase your time to 45 seconds of activity and 15 seconds of rest. Remember, you want to be working at your maximum—leaving you out of breath by the end of that interval.
So if you want to implement interval training into your fitness routine to rev up your metabolism, here are the best exercises for weight loss.
Whether you love or hate it, running is one of the best and simplest ways to burn calories—and you don't need a treadmill to do it. Just lace up your shoes and hit the road. Running in intervals—speeding up and slowing down your pace—will help make the minutes and miles go by quickly. Run in fartleks, which means speedplay in Swedish, where you pick up the pace every other street lamp or water hydrant you hit, and then slow down after you pass the next one.
"Running is great, but sprinting is even better. Sprinting helps engage the core and offers shorter durations of runs at higher intensities. So next time you think about running, think more about quality and not quantity," Ryan says. He also notes that running slow is relatively easy on your body as far as exertion is perceived, but running fast at 80% of your capability is even harder, pushing your body even more to its limits. This conditions your body to get used to this kind of stress. "There is definitely something to be said about getting comfortable being uncomfortable on your runs, so skip the road and head to a track or soccer field for some sprints next time," he says.
TRY a Fartlek sprinting routine: Start out with a 5-minute jog. Then alternate between 10-second sprint intervals and 50-second moderately-paced jogs. Use that jog to catch your breath, then hit the next sprint hard. Perform these intervals for 15 minutes, then end with a 5-minute jog. When you start feeling stronger in your runs, try upping the sprint effort to 20 seconds with 40 seconds of jogging.
If the last time you held a jump rope was in grade school, it’s time to get back into the swing of things. This calorie-busting workout can burn up to 318 calories (for a 140-pound woman) every 30 minutes—and your heart isn’t the only muscle that's working hard.
Jumping rope is a full-body workout. Fire up your quads and glutes to help you explode from the ground, and engage your core to keep you upright and stable as you land back down. Jumping rope also involves a little arm and shoulder action, as they remain tight while the rope movement comes from the wrists.
"Jumping rope offers athleticism, balance and coordination aspects that will not only help you lose weight, but also pump up your heart and lungs, and burn your shoulders and core in the best way possible," says Ryan.
TRY this Crossrope routine: Start with 60 seconds of freestyle jump roping. You can jump with two feet, one foot, alternate, skip, or twist your hips. You can have some fun with this one. Next, put down your rope and do 30 seconds of mountain climbers. Return for 60 seconds of freestyle jump roping. End with 30 seconds in a plank. Rest for 2 minutes and repeat the cycle. Complete 3 rounds.
Strength training can help you build lean muscle mass and rev up your metabolism, which starts to slow down once you hit your 30s. "The more muscle you have, the less fat you have since your metabolism runs higher," Ryan says. "A higher metabolism leads to more calories burned and more fat lost."
Resistance training also helps prevent osteoporosis. According to Wolff’s law, bone grows in response to the forces that are placed upon it. So if you lift heavier, your bones grow stronger as a response. "It also works on force production to maintain shoulder, hip, and spine strength, which enables your whole body to lead to a healthier life long into your later years," Ryan says. Deadlifts, anyone?
TRY a basic dumbbell circuit: Pick up one dumbbell and complete 10 squats, 10 dumbbell rows per arm, and 10 of any push-up variation of your choice. Move right into the next exercise as you finish the reps. Do 3 rounds. Rest for 1-2 minutes in between each round. To make it more challenging, increase the weight of the dumbbell or use two.
Kickboxing is a great way to burn calories, sculpt muscles, and get some serious stress relief! By driving power from your legs, your arms are able to throw major jabs, crosses, hooks and uppercuts, making it a full-body exercise. It will also test your coordination and endurance—all essential things that make you a better athlete in and out of the ring.
"Kickboxing works your core, legs, and specifically your obliques to newfound glory by pumping up your heart and lungs," Ryan says. "But it also helps you work on balance, coordination, and proprioception. It truly is a mind meets muscle exercise if there ever was one."
TRY five kicking combos from the DailyBurn: Take these combos and perform 8 reps of each as long as you can for 30 minutes. Rest as needed. Play your favorite fight music and stay strong!
Spinning, whether it's on an actual bike or a stationary one, is one of the best ways to burn calories and build endurance. "Spinning is a great weight-loss activity that is relatively low impact and targets the biggest, strongest muscles in the body," Ryan says. "When you engage your biggest muscles, you set off hormones to produce more muscles, similar to strength training, which helps to burn fat across your whole body," he adds.
If you don't like running, spinning is a low-impact alternative that'll crank up your heart rate. But there's more to pushing the pedal than speed. By practicing good form and engaging your core as well as your thighs and glutes, spinning can be a full-body workout. Whether you're doing a heavy climb in first position or sprinting in second, your core is the key to spinning efficiently and quickly. And as you drive your foot down with each stroke, it's all about squeezing your inner thighs.
TRY a spinning interval routine: Warm up on the bike for 10 minutes. Go as hard as you can for 30 seconds; pedal easy for 60 seconds. Repeat four times except after the fourth work interval, pedal easy for four minutes. Repeat the whole cycle three more times for a total of 37 minutes of exercise.
HIIT workouts are, by far, one of the most effective ways to burn calories and hike up your metabolism. The best part is, these workouts don't have to last very long. Some HIIT workouts can last for only 10 minutes, but it's only effective if you push your body to its limits with all-out energy. Research has shown that HIIT can help burn belly fat, a.k.a. the worst kind of fat that puts you at risk for heart disease and other health conditions.
Throughout, form is key. "Even though you are moving through movements at high intensities, you still need to make form paramount to avoid injury," Ryan says. "Think less about the load/tension or weight intensity and focus more on completing the reps and sets in a sound manner and building load safely."
TRY a 10-minute, total-body workout to rev up your metabolism.
If you haven't used your gym's rowing machine, you're missing out on one of the best pieces of cardio and strength equipment. Working your quads, glutes, hamstrings, core, arms, and back, you get a total-body workout that'll have you pouring sweat. Contrary to what most people think, the power of rowing mostly comes from your legs—not your arms. Engaging your quads and glutes, you drive your legs back to pull the handle toward your chest.
"Rowing is a great weight-loss tool because it incorporates the best out of the cardio and strength worlds, with a focus on pulling and opening up the hips and shoulders. At the same time, you're working your heart and lungs," Ryan says. Because many people have desk jobs, our backs tend to be rounded. Rowing helps correct this by opening your spine, hips, and shoulders, Ryan says.
TRY a 15-minute rowing routine: Start with a 5-minute warm up, rowing at a slow, consistent pace. Then move up to a moderate pace (about 22 strokes per minute) for 5 minutes. End the workout with a 5-minute cool down.
Don't be fooled by the elliptical! It might look an easy machine, casually spinning your legs while watching TV or reading a magazine. But if you crank up the resistance and work at a hard pace, it'll leave you breathless. "Riding the elliptical at an easy clip will not do much, but magic happens when the lungs start working and the blood starts pumping," Ryan says. Be sure to stand up straight to lengthen your abs and engage your upper-body muscles. Making use of the handles and swinging your arms will help you blast more fat and calories.
No matter how fit you are, climbing up a flight of stairs is always a challenge. That's because steps are designed to be short so that you have to engage additional muscles, like your glutes, quads, and calves, to bring your entire body up. "The StairMaster offers a great way to strengthen the glutes, quads, and hamstrings. Working the biggest, strongest muscles in the body keep your metabolic rate high, and your body strong and toned," Ryan says.
TRY a HIIT StairMaster workout. In this interval circuit, you'll work your way from a comfortable, moderate pace to an all-out effort.
Battle ropes are an excellent, no-fuss way to get a full-body strength training and cardio workout. Working at a high intensity, battle ropes will increase your heart rate in seconds.
"There is something extremely fun and satisfying about slamming heavy ropes repeatedly," Ryan says. "It not only burns the lungs and muscles in the best way possible, but it also offers a sense of accomplishment by taking out anything that has been bothering you throughout the day."
To use them properly: Hold one end of the rope with each hand and stand with your feet shoulder-distance apart. Bend your knees slightly and keep your chest up as you alternate whipping your arms to send waves down to the rope anchor. Experiment with different tempos and movement, whipping faster with one arm while slamming the rope hard with the other.
TRY this 15-minute routine: Start with making alternating waves with each arm. For the next 5 minutes, try to maintain these waves. Don't worry about speed or intensity. Just try to endure. Try this for another 2 rounds. Rest 1 minute in between rounds.
Good news if you don't enjoy the pounding effects of running on your body: Swimming is an excellent workout that combines cardio with strength training in one low-impact workout. Water adds an element of resistance, forcing you to recruit more muscles to move efficiently and use oxygen wisely. Need more motivation to hit the pool? "Simply being in water around 78 degrees for your workout helps to burn even more calories than on land because your body's natural temperature is 98.6 degrees. It fights to keep itself warm in water by burning calories and fat," Ryan says.
You're also using your legs, arms, and core to help you stay afloat, making swimming a great total-body exercise for building strength and endurance.
TRY our swimming workouts for every level.