Metabolism Surges?

  • Posted by a hidden member.
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    Jun 27, 2007 9:25 PM GMT
    I've almost convinced myself that I've been experiencing some odd surges in metabolism. I've most often noticed this when out biking. Suddenly, I'll find myself grabbing another gear and surging effortlessly up a hill. Alternatively, it'll feel like I've suddenly had a flat tire. I even stopped and checked over the bike a couple of times, but found nothing mechanical.

    I almost convinced myself that these were due to odd changes in the wind that I hadn't noticed. But it's happened in the weight room a couple of times too. The last set suddenly becomes effortless, and I feel like throwing on more weight and going on.

    It's just weird... I don't remember experiencing anything like this before. Male "hot flashes?" Anybody else had something like this?
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    Jun 28, 2007 1:45 PM GMT
    More than likely, what you may be experiencing could be a couple of things. Guys, correct me if I'm wrong, though.

    Either: one, your body is experiencing a spike in endorphines. Endorphines are good things. They make you feel good, but also endorphines rush when the body is taxed to its limit and wants to go the extra mile. They allow you to not feel pain, so the body can do what needs to get done. You may have felt sore the next day, but back then in the moment, you felt like a god.

    Two, your testosterone levels are spiking. I'm not 100% percent clear on the biology and chemistry of testosterone, since I'm not a testosteronologist, but I'm pretty sure that testosterone serves the same purpose as endorphines, except they just make you feel more focused and aggressive. Someone expand on this please?

    The real thing you want to be aware of is that is this surge of strength or endurance a one time thing, or is it occurring often? If it's a one time thing, you need to be aware of that to prevent any fatigue, soreness or injury. If it's occurring often, then that means your body is adapting to what you normally do, so you need to change your routine in some manner, like intensity or duration or method.

    Hope this helps, but anyone else, chime in.
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    Jun 28, 2007 4:13 PM GMT
    Hmm... does a testosterone spike really kick in over a period of less than a minute?

    And there seem to be negative spikes as well...

    Amusing aside: The reason I keep jumping off and checking my bike was that one day a couple of years ago, I found myself becoming weaker and weaker. I was barely able to maintain a pace up a gentle grade. I was getting passed by women! I was starting to think "heart attack!" When I got home, I finally saw the problem. I had passed over some fresh asphalt and very slowly, tar was building up in the small gap between the rear fork and the tire. The farther I went, the more braking force this exerted on the wheel. It just happened so slowly that I never noticed it. Duh!
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    Jun 28, 2007 6:43 PM GMT
    I'm not sure, but it could be possible. Testosterone is a chemical produced in the body in regular intervals, and there could be times when the body needs more testosterone.
  • GQjock

    Posts: 11648

    Jun 30, 2007 9:55 AM GMT
    testosterone doesn't fluctuate that quickly
    If it's a hormone that's doing this it's likely to be cortisol
    This hormone controls BP and insulin levels
    fluctuations in blood sugar will give you those second winds or make you fall flat on your face
  • Lincsbear

    Posts: 2590

    Jul 03, 2007 4:55 PM GMT
    mindgarden,I`ve experienced similar feelings whilst running.I often start off feeling lethargic and then,gradually,the energized feeling comes on.After fourty minutes or so,I feel like taking on a marathon or a triathlon!Or simply running way beyond my normal routine.I often finish a ten mile run at a sprint,yet my heart rate rarely goes above one twenty!Besides this,I get a good,optimistic feeling about life in general that lasts well into the next day.My recovery seems speedy as well,within eighteen,twenty hours.All this I put down to endorphin/enkphalin rushes triggered by physical stress ie exercise.Testosterone I`m less convinced of as mine farely varies much,usually high.A final item.It`s the runs where I start out feeling the least energized,weak,tired,that often are my best runs(times,enjoyment,etc.)This happens far too often for it to be merely chance.I can`t explain this.Any ideas,guys?
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    Jul 05, 2007 4:42 AM GMT
    Alternatively, you could be having an insulin spike or an insulin low.

    It is really hard to tell without stopping you when you feel energetic during the trip, and taking your vitals and blood sugar reading.

    I agree with the previous posters though; The first 15 mins of cardio is the worst part of the cardio, I can keep going after that for up to an hour no problem and I only stop because by that time I am a human waterfall of sweat and it is starting to become a nuisance.

    It could also be an age thing. I find that my energy levels swing a lot further than they used to before: as in, when I am low, I am really low and when I am energetic, I am super energetic. I never used to feel these two extremes as much before. It was more even keel.