I like to run once a day. I don't mind running twice a day at all but I enjoy just running once and getting it out of the way.
I know that this question has been on here before but I am currently at 80 miles and will be doing 90 this week. I usually do 90 miles a week by running once. Once I get into the 100+ mile weeks I start running twice.
Is running once a day doing longer runs better or is it wiser to break it up into running twice a day here and there.
Thanks for the info.
To go along with this question, can anyone post studies about what is the longest daily runs one can do consistently before muscle damage repair and glycogen replacement cannot be accomplished by the next run? Is their an absolute physiological limit or would someone be able to increase this point over many years until the effects of aging became a detriment? I am not interested in opinions as I have seen these many times before. I am only interested in scientific proof of what that point is if it can be found.
A run that is goes more than 45min (possibly 60min) is no longer a recovery run. And I would give several hours of recovery in between. You could run 45min 3 times per day (6am 1pm and 9pm).
You get more aerobic benefit from one 90min run than two 45 min runs seperated by hours because increased capilarization occurs from the continuous pressure of blood against the blood vessels, but there is a time and place for that and on recovery days it's more improtant to get the time on your feet but to still fully recover.