I'm a very fit (IMHO) 40 y.o. who did CW exercise (to use Sisson's term) for the better part of my adult life. Running, gym weight-lifting, etc. About a year ago, I discovered P90X and Insanity (I swear I am not a shill for Beachbody) and have been doing their videos in lieu of running and gym workouts. I usually felt pretty good and my weight hovered around normal levels, with a little bit (5 lbs. I thought) of extra weight. I ate what I wanted, when I wanted, etc. Inevitably, at the end of the week, I was pretty worn-out and used the weekends to recover.
About a month ago, I started on a Paleo-approved foods diet and about 10 pounds have disappeared. I feel great about this, as I am approaching the weight I was in college, a long time ago. I feel as good or better energy-wise than before Paleo, but after reading Sisson's "PrimalBlueprint", in particular the section about exercise, I wonder if I am running myself down. He advocates (to my mind) rather less exercise than I am used to.
I do P90X strength training two days a week, two Insanity workouts or P90X cardio workouts three times a week and then sprints on Saturdays, recovering on Sundays. I find that following the Paleo-diet leaves me with enough energy to pursue this regimen, but am I doing too much? All of my workouts hover around 45 minutes. I try to keep my heart rate in the 75% zone for the cardio workouts, but this is almost impossible to do and actually feel like I am exercising. At the end of my workouts, I would describe myself as exerted, but not exhausted.
I am a teacher and spend about 8 hours more or less on my feet in front of my class. I live in NYC, so I walk everywhere. I would describe my activity level as fairly high.
I have to admit I am a little afraid to do less in the realm of exercise. Afraid to lose the progress I've made in regards to weight-loss and afraid to lose muscle-tone, etc. I'm sure this fear is partly fueled by vanity, of course, as I settle into middle age!
For those of you familiar with Sisson's recommendations or who have been following a Paleo lifestyle for some time, I would very much appreciate an opinion on my workout routine. Nobody else I know follows either a Paleo-lifestyle or does the kind of workouts I do, but I feel this community is in an excellent position to give me some feedback.
What do you guys think? Am I working myself out into an early grave?