Posts Tagged ‘cardiovascular fitness’

How to Avoid Over-training to Maximize Muscle Growth

Saturday, March 20th, 2010

Almost anyone that’s picked up a set of weights has or will experience symptoms of over-training at one point in there muscle building program. Over-training can lead to serious injury, chronic fatigue, and even muscle loss.

Over-training is very common amongst athletes and particularly bodybuilders, since they figure that training as much as possible is the fastest way to massive muscle gains.

This couldn’t be any further from the truth however…

Training too much, or at too high of an intensity will lead to over-training.

Now this doesn’t mean you don’t have to put plenty of effort in to see some decent results… Whether you are a bodybuilder, athlete, or just someone that wants to add some additional mass to your frame, you need to train hard and be consistent-that’s a given. In order to get the most out of your genetics, you have to progressively overload the muscles by increasing the weight and / or intensity of each weight training workout.

The problem is however, that many of us increase the intensity of our workouts or get insufficient amounts of rest, or even worse, a combination of both. The trick is finding the right balance between workout volume and intensity, and rest and recovery. And that is exactly what I’ll cover in this article.
The Effects of Over-Training on Bodybuilders

First, let’s take a look at some of the effects of over-training and how one can prevent over-training from happening in the first place.

The Effects of Over-training on the Nervous System

Over-training effects both the sympathetic and parasympathetic nervous systems in the following negative ways:

  • Higher resting heart rate
  • Weak appetite
  • High blood pressure
  • Weight loss
  • Trouble sleeping
  • Increased metabolic rate
  • Irritability
  • Early onset of fatigue

If you are experiencing more than one of the symptoms outlined above, you may be in a state of over-training, and should evaluate your routine as soon as possible.

The Effects of Over-training on Hormone Levels

Many studies have indicated that over-training negatively effects the levels of hormones, as well as the hormone response in the body.  Since hormones play such an important role in the muscle building process, this can have a detrimental effect on your training progress.

Over-training has been show to:

  • Decrease testosterone levels
  • Decrease thyroxine levels
  • Increase cortisol levels
The increase in cortisol levels along with the decrease in testosterone levels is a deadly combination, since this leads to protein tissue break down. This will ultimately lead to a loss of muscle tissue.

The Effects of Over-training on the Immune System

perhaps one of the most alarming repercussions of over-training is it’s negative impact on the immune system-you’re bodies first defense against harmful viruses and bacteria.

Over-training can drastically decrease the levels of antibodies and lymphocytes in your body, making you much more susceptible to illness.  Simply put, this means that if you are in a state of over-training, you are much more likely to get sick.  Since you will have to skip workouts while you are sick, your muscle building progress will slow considerably.

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The Effects of Over-training on the Metabolic System

Here is a list of how over-training can  effect the metabolic system.  These symptoms are the ones that are most commonly discussed, and are ones we can’t ignore:

  • Micro tears in the muscle
  • Chronically depleted glycogen levels
  • Slow, weak muscle contractions
  • Depleted creatine phosphate stores
  • Excessive accumulation of lactic acid
  • Extreme DOMS (delayed onset muscle soreness)
  • Tendon and connective tissue damage

So you must get the point by now… Over-training effects the entire body, and can seriously impact the results of your muscle building program.

Now let’s take a look at the different types of over-training, and what we can do to prevent it.

Is it Worse to Over-Train With Cardio or Weight Training?

Any form of over-training is a bad thing, however, I’ve personally experienced both types of over-training and can honestly say that over-training in the weight room is much worse, and much more prevalent than over-training through cardiovascular training.

Here are some of the reasons why:

  • In order to grow, muscles must fully recover from their last workout, every workout.  If you are over-training and work the muscles before they have fully recovered, you will break down the muscle tissue before it has rebuilt-making it impossible to build muscle!
  • Over-training with weights makes you more susceptible to nervous systems hormone and immune system issues, which all pose serious health risks.
  • It can lead beginners down the wrong path, perhaps wasting money on unnecessary supplements, or even worse, steroids.

I personally believe that only competitive athletes such as swimmers, runners and bikers run a serious risk of reaching a state of cardiovascular over-training, since there are often training for two or more hours daily.

The bottom line is that it is much easier for the average person to over-train while weight training than while cardiovascular training, and I think the effects can be more serious.

How do I Determine if I’m Over-training?

Determining if you’re currently over-training is fairly simple.   If you’re in tune with your body, you can often see the signs of over-training before they get serious.  If you are losing interest in workouts, are having trouble sleeping, and feel weak and irritable, you may be in a state of over-training and should take a week or more off.

If you are experiencing two or more of the symptoms outlined earlier in the article, this should raise a red flag.

Another variable you can use to determine if you are over-training is by tracking the performance of your workouts.

Has your physical performance improved compared to your last workout?

For example, let’s say last workout you were able to perform 8 pull-ups using your body-weight, but were only able to perform 6 pull-ups the following week.  This means that you have not “out done” your previous workout, have not fully recovered, and therefore are likely over-training.  You nave to re-asses your program and make modifications so that you see progress every workout.

How Can I Prevent Over-training?

n order to avoid over-training, you need to take a multi-facited approach.  Determining the correct training volume and intensity, eating the right foods, and getting the right amount of rest and recovery must all be taken in to consideration.  Now let’s take a look at each of those factors in more detail.

Correct Training Volume

Determining the correct training volume can be difficult, especially when you are first starting out.  You have to determine how much weight to lift, how many repetitions and set to perform for every single workout.

You need to use your own judgment in this case, based on your recovery ability and your recovery methods.  Remember that the goal is that you improve every single workout, and if this isn’t happening, you have to decrease the intensity of your workouts.

This is where many people go wrong though.  You begin your workout and realize that you have not fully recovered.  You can either continue to train at a lower intensity than the previous workout, or skip the workout entirely.

As hard as it may be, skipping the workout is the right way to go.  Just turn around and go home!  Your body is telling you that it needs more rest, and you must listen to it!

There is no point in training at a lower intensity, further breaking down the muscle tissue.   By doing this you will increase your risk of injury, and make it harder for your body to fully recovery for your next training session

Proper Nutrition

Your diet plays a huge role in your muscle building program.  It helps regulate hormone levels, provides energy, and provides the raw building blocks that are used to create new tissue.

Here are some dietary recommendations that will limit the chance of over-training:

  • Do not skip breakfast.  This is one of the most important meals of the day.  Skipping breakfast is very catabolic, and can promote muscle loss.
  • Never let yourself get hungry.  If you’re trying to build muscle mass, you have to constantly feed your body quality foods so that it never has the chance catabolize muscle tissue.
  • Unless you are trying to build muscle and lose fat, make sure you have eaten prior to your training session and are not hungry.
  • Have the largest meal of the day within an hour after your workout.  Do this every single workout!
  • Consider taking proven supplements like creatine, and antioxidants to increase performance and fight free radicals.
  • Eat every 2-3 hours to ensure that your body remains in an anabolic state.
  • Keep glycogen levels at full capacity to inhibit muscle tissue breakdown.

Rest & Recovery

Rest and recovery is essential when it comes to avoiding over-training.  Make sure that you get at least 7 hours of sleep each night, and that you are on a consistent schedule.  As for recovery time, it’s important that you have days off between weight training workouts.  Try to have one rest day between weight training workouts, and never train the same muscle groups on consecutive days.

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The Best Nutrition and Diet Tips for Athletes

Saturday, January 9th, 2010

As an athlete, you should always be looking for ways to increase energy, strength and performance. Do you know that through the proper nutrition you can increase all of the above?

But what foods should you eat in order to make sure you stay performing at the top of your game?

We’ll take a look at these top 5 tips to ensure your body is given the proper nutrition for athletic enhancement and performance.

1. Eat 5 to 6 Small Meals a Day

This is by far the #1 tip when it comes to proper nutrition for athletes. Imagine your body like a race car. In order for a race car to function properly you need to give it the best gasoline, oil and tires to run the way it is supposed to. Likewise, without proper nutrition, you will not reach your full athletic potential. By eating 5 to 6 small meals a day, you will be able to recover at a faster rate and increase your energy levels!

2. Consume The Right Ratio of Macronutrients

A topic not discussed very often with regards to proper nutrition for athletes is macronutrients. They consist of proteins, carbohydrates and fats. Without them you will not be able to survive. If you consume the correct amount of macronutrients at the right time, you will be well on your way to achieving your set goals, regardless of the sport you are in.

Definitely make sure that you emphasize complex carbs throughout the day and also include some simple carbs before and after the workouts. Finally, lean protein sources in every meal and some fats that are high in Omega 3s should be the sort of foods that make up your diet.

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3. Drink Plenty of Clean Water

The ideal amount of water to consume is your body weight multiplied by .66. So, if you weigh 200 pounds, you will require 132 ounces (200 multiplied by .66) of water. If you are not properly hydrated, your athletic performance will be hindered.

Water also helps to cleanse your body and acts as a detox to any harmful substances that may linger around. It keeps you hydrated and cools you off when you are sweating. In addition, water is required for important processes such as fat burning and muscle production.

4. Consume a Post-Workout Recovery Meal

Post-workout meals are important as they help you replenish your glycogen levels. Glycogen (stored carbs) is needed for energy and gets burned up after a workout as they are your main source of energy. As a result, after working out you should consume a meal that is high in protein and carbohydrates (both simple and complex). By doing this, you will allow your body to recover faster and will allow you to be that much better the next time you exercise or perform any physical activity.

5. Take Your Multi Vitamin and Minerals

Vitamins and minerals allow your body to process chemical reactions at an accelerated rate. B-complex vitamins provide a great health benefit as they help to further break down carbohydrates which in terms will give you energy. While you do obtain vitamins and minerals from certain foods you eat, they usually are not enough for those who are involved in physical activities such as exercising and sports.

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Steady State Cardio 5 X More Effective Than High Intensity Interval Training????

Tuesday, January 27th, 2009
By Tom Venuto, NSCA-CPT, CSCS
www.burnthefat.com

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High Intensity Interval Training, or HIIT for short, has been promoted as one of the most effective training methods ever to come down the pike, both for fat loss and for cardiovascular fitness. One of the most popular claims for HIIT is that it burns “9 times more fat” than conventional (steady state) cardio. This figure was extracted from a study performed by Angelo Tremblay at Laval University in 1994. But what if I told you that HIIT has never been proven to be 9 times more effective than regular cardio… What if I told you that the same study actually shows that HIIT is 5 times less effective than steady state cardio??? Read on and see the proof for yourself.

“There are lies, damned lies, and then there are statistics.”

- Mark Twain

In 1994, a study was published in the scientific journal Metabolism by Angelo Tremblay and his team from the Physical Activity Sciences Laboratory at Laval University in Quebec, Canada. Based on the results of this study, you hear personal trainers across the globe claiming that “HIIT burns 9 times more fat than steady state cardio.”

This claim has often been interpreted by the not so scientifically literate public as meaning something like this: If you burned 3 pounds of fat in 15 weeks on steady state cardio, you would now burn 27 pounds of fat in 15 weeks (3 lbs X 9 times better = 27 lbs).

Although it’s usually not stated as such, frankly, I think this is what some trainers want you to believe, because the programs that some trainers promote are based on convincing you of the vast superiority of HIIT and the “uselessness” of low intensity exercise.

Indeed, higher intensity exercise is more effective and time efficient than lower intensity exercise. The question is, how much more effective? There’s no evidence that the “9 times more fat loss” claim is true outside the specific context in which it was mentioned in this study.

In order to get to the bottom of this, you have to read the full text of the research paper and you have to look very closely at the results.

13 men and 14 women age 18 to 32 started the study. They were broken into two groups, a high intensity intermittent training program (HIIT) and a steady state training program which they referred to as endurance training (ET).

The ET group completed a 20 week steady state aerobic training program on a cycle ergometer 4 times a week for 30 minutes, later progressing to 5 times per week for 45 minutes. The initial intensity was 60% of maximal heart rate reserve, later increasing to 85%.

The HIIT group performed 25-30 minutes of continuous exercise at 70% of maximal heart rate reserve and they also progressively added 35 long and short interval training sessions over a period of 15 weeks. Short work intervals started at 10 then 15 bouts of 15 seconds, increasing to 30 seconds. Long intervals started at 5 bouts of 60 seconds, increasing to 90 seconds. Intensity and duration were progressively increased over the 15 week period.

The results: 3 times greater fat loss in the HIIT group

Even though the energy cost of the exercise performed in the ET group was twice as high as the HIIT group, the sum of the skinfolds (which reflects subcutaneous body fat) in the HIIT group was three times lower than the ET group.

So where did the “9 times greater fat loss” claim come from?

Well, there was a difference in energy cost between groups, so in order to show a comparison of fat loss relative to energy cost, Tremblay wrote,

“It appeared reasonable to correct changes in subcutaneous fat for the total cost of training. This was performed by expressing changes in subcutaneous skinfolds per megajoule of energy expended in each program.”

Translation: The subjects did not lose 9 times more body fat, in absolute terms. But hey, 3 times more fat loss? You’ll gladly take that, right?

Well hold on, because there’s more. Did you know that in this oft-quoted study, neither group lost much weight? In fact, if you look at the charts, you can see that the HIIT group lost 0.1 kg (63.9 kg before, 63.8 kg after). Yes, the HIIT group lost a whopping 100 grams of weight in 15 weeks!

The ET group lost 0.5 kilograms (60.6 kg before, 60.1 kg after).

Naturally, lack of weight loss while skinfolds decrease could simply mean that body composition improved (lean mass increased), but I think it’s important to highlight the fact that the research study from which the “9 times more fat” claim was derived did not result in ANY significant weight loss after 15 weeks.

Based on these results, if I wanted to manipulate statistics to promote steady state cardio, I could go around telling people, “Research study says steady state cardio (endurance training) results in 5 times more weight loss than high intensity interval training!” Or the reverse, “Clinical trial proves that high intensity interval training is 5 times less effective than steady state cardio!”

Mind you, THIS IS THE SAME STUDY THAT IS MOST OFTEN QUOTED TO SUPPORT HIIT!

If I said 5 X greater weight loss with steady state, I would be telling the truth, wouldn’t I? (100 grams of weight loss vs 500 grams?) Of course, that would be misleading because the weight loss was hardly significant in either group and because interval training IS highly effective. I’m simply being a little facetious in order to make a point: Be careful with statistics. I have seen statistical manipulation used many times in other contexts to deceive unsuspecting consumers.

For example, advertisements for a popular fat burner claim that use of their supplement resulted in twice as much fat loss, based on scientific research. The claim was true. Of course, in the ad, they forget to tell you that after six months, the control group lost no weight, while the supplement group lost only 1.0 kilo. Whoop de doo! ONE KILO of weight loss after going through a six month supply of this “miracle fat burner!”

But I digress…

Back to the HIIT story – there’s even more to it.

In the ET group, there were some funky skinfold and circumference measurements. ALL of the skinfold measurements in the ET group either stayed the same or went down except the calf measurement, which went up.

The girths and skinfold measurements in the limbs went down in the HIIT group, but there wasn’t much difference between HIIT and ET in the trunk skinfolds. These facts are all very easy to miss. I didn’t even notice it myself until exercise physiologist Christian Finn pointed it out to me. Christian said,

“When you look at the changes in the three skinfold measurements taken from the trunk, there wasn’t that much difference between the steady state group (-6.3mm) and the HIIT group (-8.7 mm). So, much of the difference in subcutaneous fat loss between the groups wasn’t because the HIIT group lost more fat, but because the steady state group actually gained fat around the calf muscles. We shouldn’t discount simple measurement error as an explanation for these rather odd results.”

Christian also pointed out that the two test groups were not evenly matched for body composition at the beginning of the study. At the beginning of the study, the starting body fat based on skinfolds in the HIIT group was nearly 20% higher than the ET group. He concluded:

“So while this study is interesting, weaknesses in the methods used to track changes in body composition mean that we should treat the results and conclusions with some caution.”

One beneficial aspect of HIIT that most trainers forget to mention is that HIIT may actually suppress your appetite, while steady state cardio might increase appetite. In a study such as this, however, that can skew the results. If energy intake were not controlled, then some of the greater fat loss in the HIIT group could be due to lowered caloric intake.

Last but not least, I’d like to highlight the words of the researchers themselves in the conclusion of the paper, which confirms the effectiveness of HIIT, but also helps put it in perspective a bit:

“For a given level of energy expenditure, a high intensity training program induces a greater loss of subcutaneous fat compared with a training program of moderate intensity.”

“It is obvious that high intensity exercise cannot be prescribed for individuals at risk for health problems or for obese people who are not used to exercise. In these cases, the most prudent course remains a low intensity exercise program with a progressive increase in duration and frequency of sessions.”

In conclusion, my intention in writing this article wasn’t to be controversial, to be a smart-alec or to criticize HIIT. To the contrary, additional research has continued to support the efficacy of HIIT for fat loss and fitness, not to mention that it is one of the most time efficient ways to do cardiovascular training.

I have recommended HIIT for years in my program, using a 1:1 long interval approach, which, while only one of many ways to do HIIT, is probably my personal favorite method. However, I also recommend steady state cardio and even low intensity cardio like walking, when it is appropriate.

My intentions for writing this article were four-fold:

1. To encourage you to question where claims come from, especially if they sound too good to be true.
2. To alert you to how advertisers might use research such as this to exaggerate with statistics.
3. To encourage the fitness community to swing the pendulum back to center a bit, by not over-selling the benefits of HIIT beyond what can be supported by the scientific research.
4. To encourage the fitness community, that even as they praise HIIT, not to condemn lower and moderate intensity forms of cardio.

As the original author of the 1994 HIIT study himself pointed out, HIIT is not for everyone, and cardio should be prescribed with progression. Also, mountains of other research has proven that walking (GASP! – low intensity cardio!) has always been one of the most successful exercise methods for overweight men and women.

There is ample evidence which says that obesity may be the result of a very slight daily energy imbalance, which adds up over time. Therefore, even a small amount of casual exercise or activity, if done consistently, and not compensated for with increased food intake, could reverse the obesity trend. HIIT gets the job done fast, but that doesn’t mean low intensity cardio is useless or that you should abandon your walking program, if you have the time and if that is what you enjoy and if that is what’s working for you in your personal situation.

The mechanisms and reasons why HIIT works so well are numerous. It goes way beyond more calories burned during the workout.

Train hard and expect success,

Tom Venuto, NSCA-CPT, CSCS
Fat Loss Coach

Reference: Tremblay, Angelo, et al. Impact of exercise intensity on body fatness and skeletal muscle metabolism. Metabolism. Vol 43. no 7 (July). Pp 814-818. 1994..

About the Author:

Tom Venuto is a natural bodybuilder, certified personal trainer and freelance fitness writer. Tom is the author of “Burn the Fat, Feed The Muscle,” which teaches you how to get lean without drugs or supplements using secrets of the world’s best bodybuilders and fitness models. Learn how to get rid of stubborn fat and increase your metabolism by visiting: www.burnthefat.com

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2 Cardio Mistakes You’re Still Making

Tuesday, January 27th, 2009

By Tom Venuto, NSCA-CPT, CSCS
www.burnthefat.com

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The controversies over cardio for fat loss are endless: steady state versus intervals, fed versus fasted, long and easy versus short and intense, and so on. Obviously there is a lot of interest in cardio training and how to do it right. Sadly, most people are still doing 2 things terribly wrong and it’s killing their results…… As best as I can figure, there are two major reasons why people are still mucking up their cardio programs for fat loss.
REASON #1: NOT ENOUGH FOCUS ON TOTAL CALORIES BURNED

Most people aren’t burning enough darn calories.

Why? Well, I guess they are too busy worrying about the “proper” type of exercise (which machine or activity), the mode (steady state or intervals), the “optimal” ratio of intervals, or the “best” duration.

Some people coast along on the treadmill at 2.3 miles per hour or some similar sloth-like pace and they think that just by hitting a TIME goal, such as 45 or 60 minutes, that with “X” duration completed, they are assured to get the results they want.

On the other extreme, we have folks who have found or created some mega-intense, super-duper short training protocol like the “4-minute wonder workout from Japan.” Just because the workout is high in intensity and it is performed in intervals, they too think they are assured to get the results they want.

What’s missing in both cases is the realization that total fat loss over time is a function of total calories burned over time (assuming you don’t blow your diet, of course).

AND…

Total calories burned is a product of INTENSITY times DURATION, not intensity OR duration.

Too much focus on one variable at the exclusion of the other can lead to a less than optimal total calorie burn and disappointing results. And remember, intensity and duration are *variables* not absolutes! (“Variable” means you can change them… even if your “guru” says you can’t!)

When you understand the relationship and interplay between INTENSITY X DURATION you will find a “SWEET SPOT” where the product of those variables produces the maximal calorie burn and maximum fat loss, based on your current health condition and your need for time efficiency.

REASON #2: TOO MUCH FOCUS ON WHAT TYPE OF CALORIES BURNED

As best as I can figure, there is one whopper of a mistake that is still KILLING most people’s cardio programs and that is…

Way too much focus on WHAT you are burning during the workout – fats or carbohydrates – also known as “substrate utilization.”

This idea comes from the notorious “fat burning zone” myth which actually tells people to exercise SLOWER and LESS intensely to burn more fat.

Hold on a minute. Pop quiz. Which workout burns more calories?

(A) A 30 minute leisurely stroll through the park
(B) A 30 minute, sweat-pouring, heart-pounding, lung-burning run?

Like, DUH!

And yet we have trainers, authors and infomercial gurus STILL telling us we have to slow down if we want to burn more fat??? Bizarre.

The reason people still buy it is because the “fat burning zone” myth sounds so plausible because of two little science facts:

The higher your intensity, the more carbs you burn during the workout
The lower your intensity, the more fat you burn during the workout
And that’s the problem. You should be focusing on total calories and total fat burned during the workout and all day long, not just what type or percentage of fuel you are burning during the workout.

It’s not that fat oxidation doesn’t matter, but what if you have a high percentage of fat oxidation but an extremely low number of calories burned?

If you really want to be in the “fat burn zone,” you could sit on your couch all day long and that will keep you there quite nicely because “couch sitting” is a really low intensity (“fat-burning”) activity.

(Of course, “couch sitting” only burns 37 calories per half hour…)

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HERE’S THE FAT-BURNING SOLUTION!

In both cases, the solution to burning more fat is drop dead simple: Focus your attention on how you can burn more TOTAL calories during your workout and all day long.

If you want to burn more fat, burn more calories and you can do that by manipulating ANY of the variables : intensity, duration and also frequency.

If you build your training program around this concept, you will be on the right track almost every time.

BUT WAIT – THERE IS MORE TO IT…

Naturally, we could argue that it’s not quite this simple and that there are hundreds of other reasons why your cardio program might not be working… and I would agree, of course. But on the exercise side, the ideas above should be foremost in your mind.

On the nutrition side, you have to get your act together there too.

For example, many people increase their food intake at the same time as they start a cardio training program thereby putting back in every calorie they burned during the workout! Then some of them have the nerve to say, “SEE, cardio doesn’t work!”

Incidentally, this is the exact reason that a few studies show that adding cardio or aerobic training to a diet “did not improve fat loss”: It’s not because the cardio didn’t work, it was because the researchers didn’t control for diet and the subjects ate more!!

It should go without saying that nutrition is the foundation on which every fat loss program is built.

Choose the combination of type, intensity, duration and frequency that suits your lifestyle and preferences the best, and WORK THE VARIABLES to get the fat loss results you want, but whichever cardio program you choose, remember that a solid fat burning nutrition program, such as Burn The Fat Feed The Muscle is necessary to help you make the most of it.

Train hard and expect success,

Tom Venuto
Fat Loss Coach
www.burnthefat.com

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About the Author:

Tom Venuto is a natural bodybuilder, certified personal trainer and freelance fitness writer. Tom is the author of “Burn the Fat, Feed The Muscle,” which teaches you how to get lean without drugs or supplements using secrets of the world’s best bodybuilders and fitness models. Learn how to get rid of stubborn fat and increase your metabolism by visiting: www.burnthefat.com

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Fat Burners: The Unadulterated Truth

Tuesday, January 27th, 2009

By Tom Venuto, NSCA-CPT, CSCS
www.burnthefat.com

Fat burner supplements are advertised everywhere these days – on the internet, in magazines and even on TV. The ads almost always feature a very lean fitness model or bodybuilder and claim that these products, usually pills, were the secret to their six pack abs and very low body fat levels. Some of these ads suggest that the only way to get as lean as the “hot bodies” you see in the ads is by taking their “miracle pills” and that proper nutrition and exercise alone is not enough.

While I won’t dismiss the fact that there are ingredients in some fat “burner” products that might help a little bit, I take great displeasure in seeing misleading advertising claims as well as the misleading use of models who are often paid to endorse the product even though they may never have even used it (they’re just models!)

Many “fat burner” companies have been sued by the Federal Trade Commission for false advertising, false claims and falsifying before and after photos.

The best you get is a slight thermogenic effect and possibly some slight appetite suppression. A few products might work through other mechanisms like improving thyroid, but if you forgive me the generalization, I consider the effects of all these “fat burner” products to be minutia.

In one of my previous newsletters, I said that in my opinion, 97% of your results come from nutrition and training and maybe you get an extra 3% advantage from supplements. Just so you know those numbers arent something I just pulled out of thin air, lets take an example:

I have reviewed scientific data that EGCG, the active ingredient in green tea extract, if consumed in enough quantity, could increase thermogenesis / metabolic rate by an average of about 75 calories in 24 hours. Since ephedrine was taken off the market, green tea extract appears in many ephedra-free formulas these days. What is a typical calorie expenditure for an active male in 24 hours? lets say 2700 calories per day. 75/2700 = 2.7%.

That little extra doesnt hurt, especially when it’s delivered in a healthful package such as green tea (rather than central nervous system stimulants), but it’s minutia in the bigger picture. Another way to put this into perspective is to make a list of what other things would burn 75 calories (for 150 lb person:)

  • walk your dog for 15 minutes
  • walk for 5 minutes at normal casual pace three times a day
  • 30 minutes of ironing
  • bagging leaves and grass clippings for 14 minutes
  • re arrange your furniture for 10 minutes
  • wash your car, 15 minutes
  • vacuuming for 15 minutes
  • 7.2 minutes of walking up stairs (could be spread throughout the day)

Ah yes, but why move your body when you can take the pill and metabolism increases while you sit and watch TV? How about for your health? A body that is not moved, rots away. Unlike a car which only has so many miles on it and wears out from over-use, people are the only “machines” on earth that fall apart from under-use.

Here’s what any good personal trainer will always tell you: No amount of calorie restriction or pill-popping will ever give you FITNESS. It willl never give you STRENGTH. it will never get you MUSCULARITY. It will never give you FUNCTIONALITY. At best it will help you reduce body mass slightly.

On one hand, I’m tempted to say that everything counts and that yes, 75 calories here and 75 calories there, it ALL adds up, because it does. After you’re exercising regularly and all your fundamentals are in place, details and little things do matter.

I’m simply asking you to put the benefits of any fat burners in proper perspective and realize that (1) there is no “need” for taking them and (2) the claims made in the ads are often erroneous or exagerrated.

My advice on fat burners:

1. NEVER buy a fat burner unless you get independent verification of the claims made for the product.

How do you KNOW they really work? Are you SERIOUSLY going to take the advertisers word for it? Are you SERIOUSLY going to take someone else’s testimonial as fact? Get verification for yourself by going to the pub med data base and looking for the primary research.

2. Put it in perspective

With those products that work, such as those providing a small thermogenic effect, put that in perspective as compared to how easily you could burn that many calories with even light exercise like walking or housework. Keep in mind the additional fitness and strength benefits you will obtain from exercise as opposed to doing nothing and popping a pill.

3. See if there are any side effects or health warnings.

With all supplements and especially with prohormones or stronger thermogenics like the ephedrine and caffeine stack, (if you still have access to them), understand the risk to benefit ratio, and be certain you know the dangers and contraindications.

4. Read the label and see if the product contains enough active ingredient to even work.

A classic scam is when a “fat burner” advertisement quotes research that a certain ingredient boosts metabolism, which might be true. What they may not tell you is that all the research with positive results used a large dosage of the ingredient, which might not be cheap. So the supplement company includes a “pinch” or “light dusting” of that ingredient just so they can say it’s in the bottle, even though it’s nothing more than “label decoration.” Then they have the audacity to invoke the research studies in their advertisements when the amount of the ingredient in their product is no where near what was used in the research!

5. Proprietary blend scam.

Some companies don’t let you see how much ingredient is in the product formula, because it contains multiple ingredients and they say their formula is a “trade secret” aka “proprietary”, so they list what is in the product but not how much. Well, if you don’t know how much is in there then how are you supposed to know whether it contains the proper dosage? (answer: you don’t!)

6. Make sure there is human research, not just rodent research.

In many cases, advertisements cite studies on rats and mice as “proof” under the assumption that the product will produce the same results in humans. Animal research is an important part of the scientific method, as it is often used to help find areas of research where human study should be pursued, or in the other direction, to trace back the mechanism that makes something work. However, for obesity research in particular, a positive finding in rats does not mean the same thing will happen in humans.

7. Look for more than one human study.

Consider trying a supplement after it has human research that has been replicated by different research groups which are not industry-sponsored. My policy is that I will usually only give a “buy” rating to a supplement when a product has an intitial well-designed human controlled trial published and then similar research has been replicated by another research group that is not supplement-industry funded.

Actually, I think it’s a good thing that nutrition and supplement companies fund and sponsor some of the research. They should. They should not only back up their claims with published clinical trials, they should share some of the cost of this expensive research.

However, a basic principle of the scientific method is replication. Other researchers should be able to duplicate the findings. Therefore, while the funding source does not necessarily prove bias, if there is only one study available on a supplement and it is company or industry sponsored, I usually take it with a grain of salt and put an asterisk next to it while I wait for confirmation from another study. (You might be surprised at how infrequently this type of confirmation occurs).

Do you really need “more” than nutrition and exercise?

Now, when you weigh the fact that even the products with research backing them only help a little, with the fact that many of the ads lie to you about research, exaggerate claims and hide vital information about ingredients, and with the fact that you can do a few more minutes of exercise per day and get the same results for free, how enthusiastic are you about fat burners? Yeah, that’s why I’m not real excited about them either and based on the fact that I use no drugs and no “fat burner” supplements and I compete in bodybuilding – very successfully – I’d say that the assertion, “it takes more than nutrition and exercise to get six pack abs” is patently false.

Train hard and expect success,

Tom Venuto

About the Author:

Tom Venuto is a natural bodybuilder, certified strength and conditioning specialist (CSCS) and a certified personal trainer (CPT). Tom is the author of “Burn the Fat, Feed The Muscle,” which teaches you how to get lean without drugs or supplements using methods of the world’s best bodybuilders and fitness models. Learn how to get rid of stubborn fat and increase your metabolism by visiting: www.burnthefat.com

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