Everytime I see some “500 calories in 30 minutes” claim it really makes my blood boil. It’s a complete scam. For most people, their bodies are not physiologically capable of burning calories at that rate, no matter how hard they work at it.
Normally, I wouldn’t spread this kind of information but I’ll go ahead and give you the link. It’s an article from Shape magazine: 5 Ways to Burn 500 Calories in 30 Minutes
I’m very dismayed to see that an NASM trainer put his name to this as he should know MUCH better.
The amount of calories your body can burn greatly depends on how efficiently your heart can pump blood through your lungs to be oxygenated. The heart of a highly-conditioned athlete can pump a greater volume of blood with fewer beats and can beat at a higher rate for longer. If you can’t do that, there’s no way that you’re reaching 17 calories per minute consistently for 30 minutes.
I’ve known of some guys in their twenties, over 300 to 350lbs, who could get their calorie burn up pretty high, as logged by a BodyBugg. This was AFTER they’d been doing a regular exercise regimen long enough that they could maintain a steady pace, even if it wasn’t vigorous. A very large person might burn what seems like a high rate of calories because they are moving a larger body mass but they can’t maintain a steady pace of physical activity.
I work out regularly and I am fortunate to have developed excellent cardio health. My resting heart rate is in the 50s and I can easily work out with my heart rate up at 150. But I know from using the BodyBugg that my per minute calorie burn is about 6-8 calories MAXIMUM. For me to go beyond that, I might have to undertake very extreme physical conditioning to see if I can push myself to another level.
I really have to laugh at the photo that accompanies the article—the happy rope jumper!! JUST TRY to jump rope for 30 minutes. JUST TRY to jump rope for a consistent minute or two. Your body’s capacity for burning calories depends on many factors including your height and weight, age, gender, and to a great degree, your cardiovascular efficiency. 500 calories in 30 minutes? It’s just media misinformation to get your attention.