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All About Exercise Machines
Right now, Liam sit with the owner of the inn. The timing of your meals and snacks can affect:. Kids come in all sizes and each person's body burns energy calories at different rates, so there isn't one perfect number of calories that every kid should eat. Activities of daily living only dressing, cooking, walking to and from the car, etc. Exercise should be that way too, he says.

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Learning About Calories

But how do you know how many calories you need? Kids come in all sizes and each person's body burns energy calories at different rates, so there isn't one perfect number of calories that every kid should eat. But there is a recommended range for most kids between 6 and 12 years old: When they reach puberty, girls need more calories than before, but they tend to need fewer calories than boys. As boys enter puberty, they may need as many as 2, to 3, calories per day, especially if they are very active.

But whether they are girls or boys, kids who are active and move around a lot need more calories than kids who don't. If you eat more calories than you need, the body changes extra calories to fat. Too much fat can lead to being overweight and other health problems.

Only your doctor can say if you are overweight, so check with him or her if you're concerned. And never go on a diet without talking to your doctor!. High-calorie foods — such as sugary sodas, candy, and fast food — quickly add up to too many calories.

Instead, eat a healthy, balanced diet. Exercising and playing are really important, too, because physical activity burns calories. Your body needs calories just to operate — to keep your heart beating and your lungs breathing.

As a kid, your body also needs calories and nutrients from a variety of foods to grow and develop. And you burn off some calories without even thinking about it — by walking your dog or making your bed. But it is a great idea to play and be active for an 1 hour or more every day. That means time spent playing sports, playing outside, or riding your bike.

Nashville exercise physiologist Kathy Alexander agrees: But how do you know which machine is likely to feel right to you? Here's what you can expect from the most popular cardio machines out there, along with some tips on getting the most out of your workout. Here's the lowdown on what you can expect from some of the machines you're likely to find at your local gym.

The treadmill burns the most calories of any of the cardiovascular machines available at most gyms, says Alexander. You can expect to burn about calories per mile, walking briskly. Stamford notes that a treadmill can be adapted to many different fitness levels by increasing the speed from walking to running or by adjusting the incline.

But even walking may be too much for someone who is overweight and has joint pain. Every time your foot hits the ground, says Alexander, "the impact forces are 3. Since a treadmill is moving under you, the impact may be slightly less than that. One more thing to keep in mind: Treadmills can pose a real balance challenge for new exercisers or those who haven't worked out in a while, says Matthew Vukovich, exercise physiologist and associate professor at South Dakota State University.

These machines pack a little less punch on the joints, and either can be a good alternative to the treadmill, says Vukovich. Because you use them in a standing position, you're using lots of muscle mass, so the calorie burn rate is still pretty high. Elliptical machines with arm components can further increase the numbers of calories you burn, says Stamford. All our experts agree that the stationary bike offers the workout with the least impact on the joints. People with knee pain are often steered toward these bikes, since the impact of body weight is not a concern as it is on a treadmill, elliptical trainer, or stair stepper.

But to avoid knee strain, you must make sure the bike is adjusted to fit your body, Vukovich says. Most people sit too low, meaning their knees flex too much as they pedal.

This can put too much pressure on the knee and result in soreness, warn Vukovich. The stationary bike is a less intense calorie-burner than some of the other machines. You'll need to pedal four miles to burn calories, says Alexander.

Rowers are more advanced cardiovascular machines. Because you must push with the legs while you pull with the arms, rowers require coordination. They also you require you to engage your core abdominal muscles to support and protect your back. Because they use so many muscle groups, rowers burn lots of calories.

But this machine has several red flags for a beginning or unfit exerciser. Extra weight often comes with back pain , and this is not a machine you want to use if you have back issues, he says. Choose a machine that feels right. If impact is a problem, the stationary bicycle may be a better choice than the treadmill.

More muscle use equals more calorie burn. The basic rule of thumb is that the machine that exercises the greatest muscle mass burns the most calories.

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