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Max effort = tunnel vision?

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Max effort = tunnel vision?

Old 04-21-09, 10:00 AM
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Max effort = tunnel vision?

Hi Guys,

This morning I did my first set of intervals in probably 4 or 5 years. Gack it hurt! I was going for a 1 minute at max effort, and was noticing that probably in the last 15 seconds or so things started to get kinda dark for me, it was hard to see sorta like tunnel vision.

After I finished my ride I was thinking about this more and wondering how much I'm putting myself at risk because its seems like I might miss something happening up ahead just off to the side (like a pedestrian or car coming into my path). Does this kinda thing happen to everyone?

Now that I'm thinking about this I do recall one race (many years ago) in particular where I was about a mile from the finish descending at close to 50mph totally redlining it. The roads we were on were empty but I do remember the same thing happening, where it seemed like it was difficult to see in my peripheral vision, and I remember thinking as I crossed an intersection that I would be totally dead if a car was coming and I just couldn't see it.

I finished the race, almost collapsed, went into a kind of exercise induced asthma attack, and felt like I was gonna puke, but hey I won.

Derek
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Old 04-21-09, 10:23 AM
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been there done that.... luckily i was running track and not riding a bike. it happens.
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Old 04-21-09, 11:00 AM
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It's been known to happen.
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Bring the pain.
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Old 04-21-09, 11:05 AM
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there is this huge hill where i live, and i usually can barely climb it. but i told myself, im going to go up this thing as fast as i possibly can. i think my mind told my body what i was about to do, as i was climbing my legs instantly were on fire, and the rest of my body started freezing, and i started blacking out.....

i have no idea how i did it. it was weird.
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Old 04-21-09, 11:07 AM
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Yep. It's nature's way of telling you it's about to be lights out.
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Old 04-21-09, 11:08 AM
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It's normal. That is why I prefer to do max efforts like this on the trainer....less danger.
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Old 04-21-09, 11:21 AM
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Normal. I've had this during high rep heavy squat sets as well.
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Old 04-21-09, 11:29 AM
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I don't get the tunnel vision, but I tend to get a tingling face and lips. Normally I'll get it towards the end of the final lap. Last week, 1.4 mile lap, average HR for last lap was 183 with a max of 193. Needless to say my face felt like a million of bugs were crawling on my face.
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Old 04-21-09, 11:44 AM
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Probably best not to reach that point.
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Old 04-21-09, 11:48 AM
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Originally Posted by Ratfish
Probably best not to reach that point.
Yes.

I know we're all about kicking arse here. But sometimes you don't want to fly that close to the sun.
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Old 04-21-09, 11:58 AM
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Trying to hold a wheel through a heavy crosswind on the Saturday River Ride. All of a sudden we were riding down a pink tunnel. That's when you know you're working hard.
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Old 04-21-09, 01:04 PM
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Originally Posted by caloso
Trying to hold a wheel through a heavy crosswind on the Saturday River Ride. All of a sudden we were riding down a pink tunnel. That's when you know you're working hard.
If your riding though a pink tunnel, I think your following the guy infront of you too close. (think about it)
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Old 04-21-09, 06:35 PM
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Old 04-21-09, 07:39 PM
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You'll be amazed to know how far some BFers push themselves.
For me, the trainer works better when it comes to intervals (all kinds); no traffic, hills, intersections etc.
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Old 04-21-09, 07:44 PM
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I had tunnel vision in tonight's time trial. it happened at about 42 mph on a downhill. kind of scary.
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Old 04-21-09, 07:54 PM
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Originally Posted by asmallsol
If your riding though a pink tunnel, I think your following the guy infront of you too close. (think about it)
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