Tag Archives: burning calories

FIVE MYTHS ABOUT FITNESS WORKOUTS

Myth #1:  The only way to lose weight is to drastically cut calories.

Fact:  If we eat too little, our body responds as though we were starving and slows down our metabolism to hold on to fat as a potential energy source as long as possible.  Eating smaller quantities more frequently is the way to keep your metabolism going.

Much better to divide up your daily calorie allotment determined by your age and gender into 5 or 6 small meals.  Your body will burn calories more efficiently if they’re fed to it in smaller portions.

This is why starving all day to gorge on a holiday dinner works against us.

Myth #2:  A woman will bulk up if she lifts heavy weights.

Fact:   Women don’t lift heavy enough weights to bulk up and have too much estrogen in their bodies to develop man muscles.

And muscles are the key to revving up metabolisms and keeping weight off.

Your muscles are burning calories even as you read this and even when you’re sleeping.  Fat, as you might suspect, requires few calories to just sit there and be a blob.  It’s not exchanging gases and chemicals 24/7 the way our muscles are.

Myth #3:  Stay in the fat-burning zone to lose weight faster.

Fact:  Despite what your treadmill screen suggests, there is no such thing as a fat-burning zone.  “The fat-burning zone is a complete myth,” says Wayne Westcott, PhD, Prevention advisory board member and fitness research director at Quincy College.  “While it’s true that you burn a higher percentage of fat calories when exercising at a moderate pace, you burn fewer calories overall.”

Typically, the mythical zone has you exercising at only 60-70% of your maximum rate.  This is one place where intuition and common sense and fact do intersect:  The faster you work out, the more fat you’ll burn.

Myth #4:  Increasing cardio workouts is the best way to lose weight.

Fact:  The most effective way to take off pounds is to include weights in your routine.  A recent study found that persons who cycled for 30 minutes a day lost 3 pounds of fat and gained one half pound of muscle.

But over the same period of time, persons who cycled for 15 minutes and weight-trained for 15 minutes lost 10 pounds of fat and gained 2 pounds of (calorie-burning) muscle.

Myth #5:  The fastest way to a flat belly is ab exercises.

Fact:  Though ab exercises do strengthen different abdominal muscles, they won’t burn body fat.  Aaron Swan, a private trainer at the Sports Club/LA-Boston says, “Abs are made in the kitchen—not from doing crunches.”

He advocates a diet low in refined carbohydrates and lots of lean proteins, healthy fats and lots of low-glycemic fruits and vegetables.  Still, you should do some abdominal exercises for core strength.

Tomorrow:  5 more Myths about fitness workouts

Source:  Prevention, April 19, 2012   and other sources.

HARVARD MEDICAL SCHOOL: BENEFITS OF STRONG MUSCLES

This generic person’s no dumbbell.

As we age, we lose muscle tissue, bone density and strength.  Consequently, we become more vulnerable to accidents that can put an end to our ability to lead the active and independent life we’d become accustomed to.

Strength training can slow down, may even reverse, our physical decline.  It can help manage, may even avert, conditions such as heart disease, diabetes, arthritis and osteoporosis.

Strong muscles are good for a healthy heart.  They more easily extract oxygen and nutrients from the blood than do flabby muscles, thus putting less strain on the heart.

Strong muscles help regulate blood sugar levels.  They’re better at removing sugar from the blood and keeping the body sensitive to insulin than are flabby muscles, thereby controlling or preventing type 2 diabetes.

Without the tug and pull of muscles on our bones, we don’t efficiently absorb calcium.  Our early astronauts came back from missions with osteopenia—no gravity, no resistance for muscles to overcome.  The men were given elastic resistance bands to work out with on subsequent flights.   If we aren’t working our muscles against resistance, we’re inviting osteopenia and/or osteoporosis into our bones and lives.

Strong muscles help us to balance and avoid falling.  If we do trip, the muscles help us right ourselves before we fall.

Strong muscles are good for our vanity.  We look better in bathing gear, shorts and sleeveless tops if we’re well-muscled.

My Take on building muscles:  When I’m sleeping, my fat is inert.  It just lays there, looking flabby.  But my muscles, because they’re living matter, are busily working at burning calories, even while the rest of me is doing nothing.

And that’s the reason why muscles are the key to weight management.  It’s not so much because of the calories burned working out as it is because of muscles’ ability to burn calories 24/7.  Pretty sweet!

If you aren’t ready yet to tackle free weights or weight machines, stay tuned for BUILDING STRONG MUSCLES in which I’ll describe some of Harvard’s excellent starter exercises to build strength.

from Harvard Medical School Healthbeat, May 29, 2012      Also other sources