is it that much better to do cardio in the morning?

Discussion in 'Fitness & Nutrition' started by illmaticnyc, May 23, 2005.

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  1. illmaticnyc

    illmaticnyc New Member

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    what do you guys usually like to do?
     
  2. cavefish

    cavefish You ain't a crook son, you just a shook one

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    I usually wake up around 8:30 and get to the gym for cardio at 9, first thing in the morning. I just prefer to get it out of the way early.
     
  3. pt

    pt New Member

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    Cardio first thing in the morning does have benefits, but it's often confused with "cardio on a empty stomach".
     
  4. ACURA TL-S

    ACURA TL-S OT Supporter

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    The only thing I could think of is running would probably help wake me up.
     
  5. pt

    pt New Member

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    1) For starters, after 8+ hours sleep your stomach isn't currently digesting anything.

    2) Stimulating appetite in the morning vs. at night
     
  6. timberwolf

    timberwolf New Member

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    Quote:
    Originally Posted by Lyle Mcdonald
    My take on it is that, under most circumstances, it doesn't matter when you do cardio or what you burn.

    The whole premise is basically that, to lose fat, you need to burn fat during the activity but this is (generally) flawed on a bunch of levels.

    As others have pointed out (and I pointed out like 6 years ago in my first book), the body see saws fuels. If you use fat for fuel during activity, you will tend to use more carbs for fuel alter on; if you use carbs for fuel during activity, you tend to use fat for fuel later on.
    A recent study demonstrated this clearly, after glycogen depletion from endurance activity, even in the face of a high carb intake, the muscle continued to use fatty acids (derived from fat stores) for fuel, storing the carbs as glycogen. So at the end of the day, it all pretty much balances out.

    Study 1: http://www.ncbi.nlm.nih.gov/entrez/...4&dopt=Abstract

    Other studies have shown that fatty acid release under fasted conditions far exceeds what you can burn off anyhow. So the fact that there are more fatty acids floating around may not make an ounce of difference.

    Study 2: http://www.ncbi.nlm.nih.gov/entrez/...0&dopt=Abstract

    Is available free online.

    So even if you do cardio later in the day, you not only have fatty acids (in some proportion) floating around but you'll get an increase as soon as you start.

    now, this is all predicated on being able to:
    a. mobilize fatty acids effectively
    b. oxidize them effectively

    I mention this because there can be potential defects at each level. Extremely obese individuals, for example, tend to lose the capacity to readily oxidize fat for fuels during periods where they normally would.

    In very lean individuals, fat mobilization (stubborn fat especially) could make some of the above assumptions incorrect. This would be especially true for women (men's ab fat generally isn't as stubborn as women's hip and thigh fat).

    It's conceivable, that under those conditions, where fat mobilzation in the post-exercise state might impair fatty acid use and that morning cardio would be more effective. The whole caffeine thing fits right into this.

    I actually should have pointed this out during the original thread: within a certain range (I'd guess maybe 15-40% bodyfat in men), none of this seems to make much of a difference (to be sure, any difference is small relative to the effort invested). At the extremes, goofy crap happens. Extreme obesity causes one set of problems, extreme leanness another. It's a fairly standard inverted U response curve.

    So I'll concede that *maybe* some of these attention to detail matter at the extremes of leanness (problems in naturals really tend to kick in at the 12-15% bodyfat range and get worse as you get leaner) but even then most of fuel metabolism is being controlled by factors outside of our control. Then again, if we can modify it even by a small percentage amount, it might be worth it over extended periods. Still, that describes a fairly small minority of folks.

    Lyle



    If I understood this correctly, the leaner you are (under 10%) then it would make a difference? Otherwise at higher bodyfat levels, you're just being anal?
     
  7. pt

    pt New Member

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    ^^
     
  8. Neo22

    Neo22 OT Supporter

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    oh snap
     
  9. Cachee0

    Cachee0 OT's Technical Recruiter, Send me your resume

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    Well it is best for fat burning as long as you don't eat. Not eating for 8 hours+ because of sleeping and then wake up and do cardio = Most amount of fat burn.
     
  10. pt

    pt New Member

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    This is one theory, based on the idea that during and post-cardio, your body will (in theory) utilize fat storage for energy. In this scenario, I would still get a small solid food meal (especially protein) immediately prior to cardio.

    Also, many people report that they are less likely to puke during morning cardio (PARTIALLY empty stomach).

     
    Last edited: May 23, 2005
  11. pt

    pt New Member

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    Looks like only 15% :noes: (HIIT AM and PM anyone ?)
     
  12. bokhan

    bokhan i love you

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  13. pt

    pt New Member

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    No... but definately a good start.... consider regular rolled oats in that scenario :cool:
     
  14. cazzone

    cazzone OT Supporter

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    :rofl: :rofl: :rofl:
     
  15. pt

    pt New Member

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    Longterm goals ?

    Shortterm goals ?
     
  16. ACURA TL-S

    ACURA TL-S OT Supporter

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    My take on it is this. If you haven't eaten in eight hours and do cardio, you are going to burn more fat because of low glycogen levels. However, when you eat later in the day you will store more fat because you are not utilizing the glycogen for energy like you would if you ran later in the day. Cardio has little effect on EPOC, so it is six of one, half dozen of the other.
     
  17. ACURA TL-S

    ACURA TL-S OT Supporter

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    This is basically what I am trying to say in a more complicated fashion.
     
  18. shastaisforwinners

    shastaisforwinners OT Supporter

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    bumping for the tard that couldn't seem to search for this
     
  19. shastaisforwinners

    shastaisforwinners OT Supporter

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    :bigthumb:
     
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