Do you think cars are more important pre or post WO and why?
This is purely hypothetical and i know what i think, but if you only ingested carbs at one time, would you pick pre or post wo?
I'll play, but I've got to ask some more questions:
These are the only carbs of the the day?...
How many grams, what is the GI and composition (can it include fiber?) and what is the timing pre-workout?...
How long is the workout, what is the training style (heavy duty, high volume, etc.) and what muscle groups are being trained?
How large is this person, also?...
Is the goal to gain or lose weight?...
Why is there not a peri- workout option?...
Do you get any protein with the carbs?... If so, what and how much?...
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Why am I asking these things?...
Risk of reactive hypoglycemia....
Intra-workout carbs on the order of 50 grams will suppress cortisol levels during and post-workout and the extent to which this happens predicts muscle growth (less cortisol --> more growth).
Glycogen synthesis can only happen so fast, so immediately pre-workout carbs won't do much in that regard during the workout, but they can likely forestall depletion.
AMOUNT, GI, etc. makes a huge difference relative to the exercise stress. Take in 50 g CHO and do 6 sets for bis, 6 for tri's and 3 for abs and your'e don in 30 min' is a far cry from training legs high volume, short rest interval. 200g carbs can be had and this will likely mean you've got post-workout carb absorption, but absorption will depend upon fluid ingested, thermal stress and exercise intensity as well.
Protein will affect gastric emptying, insulin release, etc. and the kind also can make a difference here (hydro, EAA, WPI, WPC, etc.)
[Although simple is good, sometimes I think generic questions like this end up with so many different answers b/c there really are so many different pieces of the dietary puzzle that can change the answer(s).]
-S