Cardio intensity question

  • UncleverName

    Posts: 741

    Jan 12, 2008 10:51 PM GMT
    Hey guys

    Sorry if this has been asked already. I couldn't find this specific question answered.

    I'm trying to lose the last bit of body fat, so I'm trying to kick up the cardio.
    I do weights 3 - 4 times a week, I do Yoga 1 - 2 times a week, and I do cardio 4 - 5 times a week.

    Now, from what I've read, it's better to do interval training for cardio. So I'm doing a minute of walking, a minute of sprinting, back and forth. I'm going for about 20 minutes at a time. My question is, is this enough? Should I be going for an hour instead? I know that would be more work, and thus would burn more calories. If I do go for an hour
  • MSUBioNerd

    Posts: 1813

    Jan 13, 2008 1:16 AM GMT
    If you're doing interval work, 20 minutes is plenty of time. If you can do an hour of interval work, you're not working hard enough during the sprint portions of the intervals.

    Different forms of cardio will achieve different things. While a slow pace for a very long time will burn more calories than interval work, it's been suggested that more of those calories will be protein, and thus while you might be losing weight from it, it won't be as good for losing fat. Interval work does more to increase your aerobic capacity, really boosting your heart primarily, but doesn't burn as many calories total--this is part of the reason why it's recommended as the primary form of cardio for the naturally thin who want to gain some weight without losing their conditioning. Interval work is also recommended by some for losing the last bit of body fat needed to suddenly reveal your abs if you're already down at the 11-12% fat range. However, while exercise is key to maintaining a low fat percentage, the food you take in is probably more important to that at the extremes than the calories you burn or the method you choose for it.

    All this, obviously, comes with the caveat that I don't have a visible 6 pack myself, so of course my views should be taken with a grain of salt. Or, possibly, with a slice of pizza. ;)
  • Posted by a hidden member.
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    Jan 13, 2008 4:20 AM GMT
    Also, remember too that the more time you spend doing cardio - the more MUSCLE you burn (and not fat)...20-30 minutes MAX of cardio bud...

    KP
  • Posted by a hidden member.
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    Jan 13, 2008 5:38 AM GMT
    Do research on body-type workouts. I'm an endomorph. My research suggested a workout of low weight/high reps and cardio at 70%-75% MHR for 40-45 minutes