I am happy with the whole Keto lifestyle we have been doing now for about a month. Apart from a few bits of carb periodisation for hard training or an event, I have been having practically no carbs.
I have found that I have a hollow leg feeling in the Quads on both legs regardless of the exercise for the day and I dont over train. The hollow leg feeling is there from dawn till dusk, no reprieve. I have some notions that the Quads may be the focus of the feeling, as being a runner they are the muscles most used and traditionally the muscles having to process most of the carbs in the past. Other muscles can cope with the low carb diet but the quads are the ones screaming at the moment. When I have had carbs before bigger training events, the hollow feeling goes away, and interestingly stays away for a couple of days.
Just some thoughts, if anyone has any ideas please toss them in the mix as I would love to know whats going on there.