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Discussion: Lightheadedness

in: Super; Super > 2017-08-01

Aug 2, 2017 2:16 AM # 
Bash:
I've had a few scattered episodes over the years while running or doing boot camp-type things. In the first incident, I actually passed out, which led to a medical investigation that concluded, "Don't worry - sometimes these things happen."

After that I was more cautious if I felt it coming on. In each case, there was some combination of:
1) Sudden cessation of leg movement or a major leg effort, both of which result in more blood in my legs than my brain, and
2) Heat and/or dehydration.

I doubt oatmeal with brown sugar is the problem. If anything, sugar helps my brain feel sharper later on in really long runs.

Good luck with it!
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Aug 2, 2017 2:19 AM # 
Hammer:
Train with me Super. I know CPR.
Aug 2, 2017 11:07 AM # 
baloney:
Train with me Super. I know CPR, I do sugar - but really, I just think you would be fun to train with!
Hey, do you have low BP? I have crazy low BP (family thing it seems) and find that has often been the culprit to my lightheadedness in movements done when beyoncing.
Aug 2, 2017 2:20 PM # 
Super:
Yes, measured in the high 30's sitting st my kitchen table by a nurse who visited for insurance ten years or so ago but when I exercise I can hit 200.

And yeah dude. Super fun. Ask mike.
Aug 2, 2017 2:23 PM # 
Super:
The sudden cessation of leg movement kinda fits. I was switching from a slow reverse pull up ( a let down?) to rest to a cable weighted lunge thingy. I had just come off the let down thing and was talking to the trainer and was having a hard time following the conversation and was barely keeping balance.
Aug 2, 2017 6:49 PM # 
Bash:
I know that sensation! Agreed, low BP is the real cause, whether it's chronic or temporary. The conditions linked to my episodes were things that cause low BP, e.g.:

- Dehydration = lower blood volume and thus less blood in your noggin.
- When you're too warm, more blood flows to the capillaries in your skin, away from other body systems
- When you exercise hard, those muscles demand more blood but they also pump it back to your heart as they contract - until they don't, and the blood pools there temporarily instead of going to your brain.
- I get orthostatic hypotension sometimes - low BP and dizziness when I stand up, e.g. it might happen if I'm doing pushups in a warm gym, then jump to my feet to do the next exercise.

I've read that the passing-out type of lightheadedness can be a cardiac symptom but in athletes, it's usually (but not always) benign. It's usually fine if it happens at a time when you are standing up immediately post-exercise - more likely to be a concern if it happens while you're in the middle of exercising.
Aug 6, 2017 12:41 PM # 
Mick:
It is not uncommon to swoon in the presence of Beyonce.

This discussion thread is closed.