This is a very interesting idea. Protein would be more responsive for absorption/storage during the low protein periods because the carb : protein ratio would be very high for the rest of the day, causing the insulin -to- glucagon balance to favor storage. Also, the extremely high intake of protein right after a workout would drop workout-induced cortisol levels significantly, so that won't be a significant factor either through most of the day. But I'll probably stick to tradition until some other HST people try.
Here's a "thought experiment" variation. Bear with the bollocks.
Most studies that recommend something in the ballpark of 1g protein / lbs. LBM are using trainees who do very long, very intense workouts, such as college football players. Most of those studies actually recommend something in the ballpark of 0.7-0.8g protein / lbs. LBM for trainees to mantain positive nitrogen balance.
Now, if we take into account that protein synthesis drops after those first 2 hours of the workout and it's unlikel that you'll be exerting heavy physical activity for the rest of day, it's likely that 0.7g/LBM protein is more than enough to sustain or gain, provided enough calories and a relatively sedentary activity level. After all, you're probably not squating.
Say you have 200lbs guy who's 10% bodyfat. On a typical bulking diet (20% protein), he would eat at least 3200 calories.
Say he eats protein 4 times a day, 3-4 hours between. With the protein index, that amounts to 126g total. If we divide that into 4, we can say that if he takes in at least 30g of protein, it's certain that he'll ingest enough protein per feed to mantain positive balance and continue to sustain / gain muscle. Perhaps more.
Then let's say he elects to eat one lb of protein per BW a day, or 200g. The protein pulse idea would then have the trainee eat something like 160g after the workout and 13.3g per feeding before and after. If he elects to eat 800 calories per meal, than each "other" protein amounts to 6.7% of total calories. Alternatively, he could eat 130g (65%) after the workout and 30g (~15% per 800 calories) per other feeding. It's over the 10-12% recommendation, but not by much. When calories are added, it'll be right.
In summary -->
Traditional bulking diet for 200lbs 10%BF guy --> 3200 calories, 4 meals, 1g protein / BW
PP formula:
protein for postworkout meal = 80% total protein
protein for other meals = 20% total protein / (# of other meals)
PP recommendation: 160g protein for postworkout meal, 13.3g per other meal (7% of calories)
Pro: Ideal pulse characteristics conforming to study / Con: Questionable servings of protein for rest of day
Conservative PP formula:
protein for workout meal = total protein - (0.7 * LBM / (# of all meals))
protein for othermeals = 0.7 * LBM / (# of all meals)
Conservative PP recommendation: 130g protein for postworkout meal, 30g per other meal (15% of calories)
Pro: "Adequate" protein per feeding / Con: Pulse gradient not as wide
cheers,
Jules