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Your body is designed to maintain a constant flow of blood to the brain. When you're standing, this blood flow is maintained throughout a range of blood pressures, usually between 50 mmHg to 150 mmHg and you use a variety of mechanisms to achieve this. When you 'invert' the cerebral BP will exceed the higher threshold, you can therefore no longer autoregulate your cerebral blood flow and intracerebral pressure increases. If you're only doing it for a short time, I can't see why this would be disastrous, but it does technically increase your chances of haemorrhagic stroke
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After many years of faithful service I've somehow managed to break the left crank-arm. It was a Sugino 75 and since the right hand side is fully functional I'm keen to see if I can just do a simple swap
Anyone have one of these kicking about? Perhaps an old set you havent chucked out?
Or failing that, anyone got a left crank that will fit a ISO square taper 110mm?
J
A mates wedding. He's wearing a pleated number from Issey Miyake, and I've got a feeling I'll be the least well dressed there. At the moment I'm focusing on the shoes/shirt/tie axis