Showing posts with label Fitness Myths. Show all posts
Showing posts with label Fitness Myths. Show all posts

Tuesday, January 24, 2012

7 Fitness Myths, Busted

We have all heard different myths and wive's tales about diet and exercise.  On Yahoo this morning, I found this article about some very common fitness myths...you should check it out...have YOU been working out based on these myths??



7 Fitness Myths, Busted

By Lisa Collier Cool

Did you make a New Year’s resolution to get fit in 2012? The fitness resolution is a perennial on the top 10 list of the annual promises we make to ourselves, just after the all-time winner “lose weight”.

If you haven’t moved many muscles since high school gym class, you might not be up to speed on fitness myths, a stubborn bunch that just won’t die. A dose of reality right about now might strengthen your resolve.

Here’s a rundown on the seven top evergreen exercise myths that you’ll probably hear but can safely ignore:

1.  No Pain, No Gain

Maybe this one took on a life of its own because it rhymes and is so easy to remember. Forget it. If an exercise causes pain, you’re either doing it wrong (a session or two with a personal trainer can set you straight) or you’ve already managed to hurt yourself.

Be sure to separate pain from muscle soreness, which comes on after you tax a lax muscle and will wear off in a few days. Actual pain can mean that you’ve exhausted a muscle or torn a ligament. If what you’re doing really hurts, stop.

2.  Stretching Before Exercise

The idea here is that stretching before and after you exercise can prevent injury while you’re working out and muscle soreness afterward.

While stretching does promote flexibility (something you should strive for as an element of overall fitness), a study published in British Medical Journal found no scientific evidence to back up the notion that stretching before a workout reduces injuries or that stretching before and after can prevent muscle soreness.

3. Exercise Speeds Metabolism for Hours

While partly true--your metabolism does amp up during exercise and for a few hours afterward--the truth can be a big disappointment: the number of calories you can expect lose thanks to the afterburn is negligible, only 20 extra ones for the whole day according to one study.

But (and this is a really big “but”) you may be able to set your metabolism on high for hours after your workout if you can exercise intensely enough to reach the top of your VO2 max (the maximum amount of oxygen you can take in during exercise) and continue at that high level for 45 minutes. A tough prescription, but if you can manage that, a recent study found that you could burn as many as 190 extra calories in the hours after exercise.

4. Crunches Lead to Sixpack Abs

Sure they will as long as you also get rid of any belly fat that obscures your abdominal muscles. While crunches strengthen muscles, they won’t burn off the fat in your belly.

To flaunt your newly crunched abs you’ve got to trim the fat via diet, cardiovascular exercise and resistance training. And, of course, for crunches to work, you’ve got to learn to do them right.

5. Running on a Treadmill is Easier on the Knees

Sorry, but it is the running itself that stresses the knees, not the surface you’re pounding.

To ease the impact on your knees, experts advise varying your aerobic activities: mix running with riding a stationary bike or using the elliptical machine at the gym.

6. Ice Eases Muscle Pain

Applying ice to a sore muscle can numb it so it feels better, but a new review of evidence from 36 earlier studies concluded that icing doesn’t help heal muscle tears and can actually reduce muscle strength and power temporarily. This makes it a poor strategy for football players and other athletes who are itching to return to the action immediately after icing.

The researchers suggested that it is okay to ice sore muscles provided you don’t go right back to exercising. And they noted that more study is needed to learn more about the effects of icing, but this will be tough to accomplish since, for comparison purposes, there’s no placebo that feels like ice.

7. Using Exercise Machines is Safer

If you know what you’re doing, using machines at the gym can help you get the most out of your workout. But first the machines have to be correctly adjusted for your height and weight by a savvy coach or trainer. Otherwise, you’re as vulnerable to injury and as you would be if you were doing the same type of exercise with free weights or without any devices.

Nor is an expensive gym membership essential to get in shape, since jogging gives you a great cardio workout, while investing a pair of dumbbells to use at home helps with strength training.

Thursday, August 18, 2011

The Top 10 Fitness Myths You're Probably Wrong About

The Top 10 Fitness Myths You're Probably Wrong About
By the editors of FitnessMagazine.com





Myth 1: Drinking water can help you lose weight

Fact: Many sources tout drinking copious amounts of water to be the all-curing panacea of the Gods. If you've heard that drinking lots of water improves your skin tone, or that it flushes toxins from your body, you know what we're talking about. But the fact of the matter is, the evidence for such catch-all health benefits is lacking.

Doctors at the University of Pennsylvania have found that both the aforementioned "benefits" simply aren't true. Another myth is that drinking lots of water will make you less hungry. Sorry to tell you this -- you may eat less because you're too busy trucking back and forth between the bathroom and dinner table, but that's about it.

Oh, and that whole "recommended eight glasses a day" thing? Also false. You should drink only when you're thirsty, and this is done just to replace the amount of water a healthy adult loses every day -- about four to six glasses.

Myth 2: Stretching before working out is crucial to preventing injury

Fact: Stretching after a workout can be beneficial, but stretching before a workout actually doesn't increase your range of motion. In fact, some studies suggest that stretching destabilize muscles, making them less prepared for strenuous exercise, especially if you're doing something like weight-lifting. Instead, do a warm-up, which gets your blood pumping.

Myth 3: Vegetarian diets are healthier than meat-inclusive ones

Fact: Sure, eating lots of veggies is healthy. But in general, cutting out an entire food group -- even if it is one that can be high in saturated fat -- is bad idea. Meat is a key source of iron, which keeps your energy levels up, allows you to think clearly, and produces enzymes that fight infection. Moreover, researchers at Pennsylvania State University have shown that iron deficiency increases a woman's risk for postpartum depression.

Vegetarians often try to get their iron fix through lentils, beans, fortified cereals and tofu. However, you're still missing protein. Make sure to eat eggs, dairy products, or soy at every meal to get your animal-friendly dose.

Myth 4: Lifting weights will make you look bulky

Fact: If you've been avoiding the free weights for fear of becoming the Incredible Hulk, no need to flee anymore. When it comes to increasing muscle size, testosterone is key. Men have 20 to 30 times the more testosterone than women, which is why they can bulk up so noticeably. But for you to reach Arnold Schwarzenegger proportions would require you to do far more weight-lifting than the average woman, plus have some sort of hormone imbalance (either genetic or synthetically induced, as with steroids).

In fact, "strength training will help you lose weight faster and keep it off in the long run," notes Jeffrey Janot, PhD, an assistant professor of exercise physiology at South Dakota State University in Brookings. If you also do cardio, it'll help you retain muscle as you drop fat, as well as prevent your metabolism from slowing. So don't focus all your efforts on the elliptical machine -- some bicep curls could actually help you reach your ultimate goal.

Myth 5: Sports bras are just to prevent painful bounce

Fact: Wrong -- sports bras are to prevent painful bounce and permanent breast sag. That's right -- it's not just old age and gravity that'll weigh your chest down. High-impact activities, like jogging or aerobics, can stress your Cooper's ligaments (the connective tissue that keeps breasts firm), causing your breasts to sag more quickly.

According to the American Council on Exercise, compression bras work best for smaller-busted women; the more well-endowed (typically a C cup or larger) should opt for an "encapsulation" bra that supports each breast separately. Replace workout bras every six months to a year.

Myth 6: A hot bath will prevent muscle soreness

Fact: Cold water is a better bet, says Marty Jaramillo, CEO of the I.C.E. Sports Health Group. "Immersing yourself in chilled water is like an ice pack for your entire body," he says.

When you exercise, your blood vessels open wider and stay that way for at least an hour afterward. Soreness occurs when waste products like lactic acid settle in your muscles through these dilated vessels. Colder temps constrict vessels, limiting the amount of waste product that accumulates, explains Jaramillo.

Myth 7: Running is counterproductive to strength training

Fact: Sounds like you need to find a new trainer! "Running is definitely not counterproductive to building muscle, unless you're looking to dramatically increase muscle mass," says Gregory Florez, CEO of FitAdvisor.com. "In fact, as a weight-bearing exercise, running helps develop more lean muscle mass in the lower body -- which also keeps your bones healthy."

That doesn't mean it's a substitute for strength training, though. "Include lower-body strength moves like squats and lunges and upper-body moves like push-ups and pull-ups to reduce injury risk, increase stamina, and boost metabolism," adds Florez.

Myth 8: Holding weights while doing cardio increases calorie burn

Fact: Yes, but not enough to make it worthwhile. The added intensity of holding weights while doing cardio does bump your calorie burn slightly, but it can also lead to elbow and shoulder injuries. "The risks outweigh the benefits," says Douglas Brooks, an exercise physiologist in Mammoth Lakes, California. "You'll expend more energy if you increase the weight you carry, but excessive or uncontrolled movements can damage the joints or cause muscle injury."

A better option for blasting extra calories: Increase your speed or resistance level on either the treadmill or the elliptical machine.

Myth 9: Fresh fruit is better than frozen fruit

Fact: Actually, no. "With shipping and storage, fresh fruit can often sit around for as long as two weeks before it hits your supermarket," says Suzanne Henson, RD, director of the University of Alabama at Birmingham's EatRight Weight Management Program. "During that time, it can lose a lot of its nutrients, especially vitamin C."

In contrast, frozen fruit is often picked and frozen at the peak of freshness. It's also a better choice for concocting smoothies. But watch out for frozen fruits in syrup -- it packs extra calories.

Myth 10: Doing crunches and ab workouts will get rid of belly fat

Fact: You can do crunches till you pass out, and you still might not get a six-pack. Why? If you have a high percentage of body fat, your abs will be covered with -- you guessed it -- fat. And no, doing ab exercises won't necessarily make you lose that belly fat, either. The truth is, you can't spot-train (otherwise, wouldn't we all be running around with flat stomachs and slim thighs?). In order to get visibly toned abs, you have to first reduce your overall body fat, which means plenty of cardio, coupled with strength training for faster results. After that, the fruits of your labor should start becoming apparent.