It is acknowledged that potassium is the antagonist to sodium wrt
muscle function. I've not memorised the science behind it but it
seems apparent from my own experience that the body's demands for
sodium are higher and this is probably because sodium is utilised in
temperature control the transport of waste out of the body yet
potassium may be mostly preserved.
> If that is correct, what ratio of potassium to
> sodium does one need? Or does it vary with the user?
If you stick to God's food, not industrial products, your tastebuds
will steer you in the right direction. Use unrefined sea salt in
clean (no chlorine) alkaline water at about 1/4tsp / pint. If one has
too much salt in the morning one has watery stools, too little and
urine is pale. Eat greens and fruit (if in season) each day until
satisfied then don't return to it that day. There's no magic niumber,
your taste will tell you when you have satisfied that requirement as
long as you don't confuse it with products.
>
> And no, it wasn't m who suffered those cramps. I just want t o
> increase my knowledge so that it doesn't happen to me. I often ride
> 100 kilometers or slightly over that distance. I'd like to get it up
> to 160 kilometers (100 miles) but I usually ride that kind of distance
> alone.
>
Sodium is the transport system which is why it is always thought of
first. If you think that 100 miles might challenge you then perhaps
you are not riding easy enough at 60 miles. This probably has more to
do with technique than it is to do with nutrition but here goes. Your
food to survive is fat, eat it. Fat will keep you riding in the rain
and cold after the carbs have burnt out and the sun drops so start
with a breakfast containig fat after fully hydrating yourself. Pork-
belly, spinach (for magnesium and alkilation) and scrambled eggs in
butter (2oz) follow that with oatmeal with cream or brose and a cup of
fruit juice. Carry enough water for the ride if you can't top up and
salt it 1/4tsp per pint. Leave some water clean and carry the salt
anyway. carry a piece of fruit, rich fruitcake and a chocolate bar.
I hope that you can complete this in 7 hours. If you are racking up
the miles at a pace of 22mph or better (or there has been some
struggling) you should probably take a break halfway.