Those of you who have asked me about cardio know that I'm not a huge fan of treadmills and ellipticals. Here are a few reasons why I don't recommend either for fat-loss:
Treadmill
- Hi-Impact: The amount of stress and impact that your body endures over a long duration is damaging. Remember: Stress is cumulative! I've met so many runners with damaged knees, tight hips and other chronic movement dysfunctions. If you compare the amount of stress endured by an elite marathon runner (under 2hr 30min) and an amateur (4hr+), you'll find less damage in the elite competitor. This is because their joints and muscles are under tension for a much shorter period of time.
- Kills your metabolism: Long duration running eventually becomes catabolic and eats away at your muscle proteins. Remember: Less muscle = Less Metabolism!
- You become efficient: After the initial few weeks of treadmill running, your cardiovascular system begins to learn how to conserve energy better. Our bodies adapt to the stress we place upon it. When we run for a long period of time, our body reacts by saying "Hey, I need to find a way to make this easier so I don't ever run out of fuel". If fat is fuel, the last thing we want is to be thrifty and efficient. The only way then to increase your fat/calorie burn during long slow runs is to run longer (which brings us back to reasons #1 and #2 why I don't recommend treadmill running).
- They're easy: The reason why so many people run to the elliptical for their workout is because they are the easiest machine in the gym! You'll crank out 45-60minutes in your very first workout and barely break a sweat. And best of all the machine tells you that you've burned 500 calories. The reality is you've probably burned less than 200 calories and you've lost 30 minutes of your life that you'll never get back! Is it possible to get a good workout on an elliptical machine? YES! (I'll explain in a minute how to do so)
- Hi-Impact: Yes, this workout is still hi-impact, but you've reduced your time under tension to less than 30minutes! Therefore the cumulative stress is much less than a long run. For people who are overweight or have minor joint pain, hi-intensity workouts will do less damage over time.
- Kills your metabolism: At these intensities your primary source of energy is almost entirely carbohydrates during the workout and fats after the workout. Proteins do not play as much of a role as a fuel source saving your metabolism from destruction!
- You become efficient: The trick here is you never get used to sprint intervals! Since we are always working in an anaerobic heart rate zone, your muscles will always demand more oxygen than your cardiovascular system can supply making economy and efficiency impossible to attain.

If you need help getting started on your hi-intensity cardio workout you can email me at cheston.bogue@gmail.com or visit me at the gym!

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