I think that the way I work out and eat has given me an adaptive capacity that I sometimes wonder about. For example, it has been weeks since I worked out. Sore joints, many long auto trips, lots of personal and business details to take care of and even a brief bout of my first real sickness in years have all somehow conspired to keep me off my (admittedly random) routines for exercise and eating.
Yet, I have not gained an once and have kept my weight and musculature within ounces of their usual levels. I feel strong, though not quite as strong as usual, and well (now that I have beaten my illness, the first to put me in or close to bed for many years). I had no explicit strategy. I did vary my eating far more than usual, trying to put the amoebic dysentery or giardia (or whatever I caught in Mexico) behind me. And I ate a cup or two of Activa yogurt now and then.
I have wondered why so little had changed regarding my weight, muscle and energy levels. One explanation for maintaining my (chaotic) stasis is the variation I have always practiced. This has just been a longer interlude than usual in my workouts. I increased the variation in my eating I think because my appetite seems to match closely my energy expenditure. This, I think, is a consequence of living at a relatively high energy expenditure level, where our evolved appestat is accurate and has real precision. Another is having low insulin and high insulin sensitivity; I experienced no hunger pangs or dizziness even when I did not eat for 2 days and only lightly the third. I did get a headache one day and had a small bit of dark chocolate just to make sure my blood glucose was not too low. That fixed it and was a signal that I was ready to begin light eating again. I think I kept my muscle mass and leanness because my GH is so high and went higher during the stress of the illness. So, now I plan to resume my sprinting and push ups. I do think that push ups are very good, not only for the chest, shoulders and arms, but also for the trunk and for posture. You have to maintain a solid posture and strong core doing the bridge for the push ups. If you do them with perfect spinal position (slight lordosis) you train your core muscles and nervous system for perfect posture.
So, my conjecture is that my stasis is due to my non-stasis way of exercising and eating.