I can’t possibly count how many times people come to me and are struggling with losing weight but are working their butts off at the gym to do so. Though their effort is there and they’re putting the time in, they just can’t seem to lose weight or change their bodies. When I hear this scenario, I can almost instantly diagnose the problem nine times out of ten. It’s the result of having gone “cardio crazy.”

Generally, the people who fall into this category have the same frustration. They spend 1 hour a day, 5 days a week, sweating it out on the treadmill, the elliptical or the recumbent bike. Some of them burn up to 800 calories per workout, but are just not seeing the results. It’s difficult to understand because they’re burning such a high volume of  calories, and we’ve all been taught that it’s all about calories in versus calories out, right?

Yes, you DO need to expend more calories than you take in to lose weight. If this simple mathematic equation doesn’t add up, weight loss will be impossible. Unfortunately, however, this is NOT the only part of the weight loss equation. Let me explain…

The real key to losing weight, and more specifically burning fat is not how many calories you burn during your workout,  but what your body does to recover afterward.

Traditional cardio, like the kind I described above, usually  entails 30 to 60 minutes of a low to moderate intensity exercise like walking, jogging or biking at a pace that is sustainable for a long period of time. No one would argue that this type of exercise doesn’t have its health benefits and can produce some gains in fitness. However, the problem is, as soon  as you’re done performing this type of exercise, your body stops reaping the benefits of it. It simply does not take your body much to recover from the stresses of pure aerobic activity.

If you live in this zone of cardio, you WILL NOT see significant improvements in your fitness level or your weight loss efforts!

To truly improve your fitness level and increase your metabolism,  you must constantly vary the stimulus, and therefore constantly change the metabolic demands of your workouts. There are so many  ways to vary the stimulus provided by your workouts. These  variables include the modality of exercise,load, tempo (intensity), distance, duration of exercise and rest periods. Once your body fully adapts to any stimulus, the cardiovascular system stops being challenged, and therefore ceases to make further improvements.

One of the keys to getting more out of your cardiovascular  program is to periodically work out at an extremely high  intensity for shorter durations. This is where interval training becomes so powerful. Rather than running for 45 minutes at one speed, you can perform 30 second sprints at 90 – 95% of your maximum heart rate, resting one minute between each sprint.  If you push the pace properly, you only need to perform about 5 repeats of this interval to reap its metabolic benefits. Why? Because different work to rest ratios have different energy demands, and this will shock your metabolism way more than a leisurely 30 minute jog!

Study after study in exercise science has shown that the  higher the intensity of the stimulus, the longer the post-workout metabolic rate is elevated. If your current workload is not causing you to fatigue, it’s time to start pushing it further! Overloading is absolutely necessary in achieving any positive physical change in your body.

The problem with the traditional cardio programs that people  tend to follow is that they never challenge their anaerobic  threshold. Simply put, anaerobic activity occurs when the body cannot produce enough energy for the muscles with oxygen alone. The beauty is, you can train anaerobically using just about any modality. Sure, you can stick to running, swimming, or biking using interval training. But you can also push your anaerobic threshold using strength training, plyometrics, or body weight resistance.

Remember, variation is the key to success. Routine truly is the enemy when it comes to producing positive physical change. You  can get just as much benefit (if not more) performing fast- paced  intervals of air squats or push ups for 10 minutes as you can in a 45 minute aerobics class. Mix it up and watch your body transform!

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Tags: aerobic exercise, anaerobic capacity, cardio training, exercise, Training For Running Endurance, weight loss

This entry was posted on Thursday, February 18th, 2010 at 1:09 am and is filed under General News. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.