For a while now I have been in search of a maintenance routine that would allow me to keep my hands and body conditioned when I am not actively learning a new piece or preparing for a performance (on those occasions I generally have no problems motivating myself to practice). The parameters of that routine are simple: it needs to encourage sensitivity and accuracy while maintaining muscle conditioning, in the shortest possible time (three kids, full time job, no time...)
I have talked with many friends about their routine, some play a Bach Suite every day, some focus on Popper (I heard that a handy way to do this is to rotate each batch of 10 for a week, the way they were written). My teacher Erling Blondal Bengtsson was quite well-known for his routine of playing through a different Bach Suite every day, and on the 7th day all the Piatti Caprices. He said that they really touched on all aspects of cello that one needs. I definitely agree (I just can't do it). I was on the Popper Project for a while (I still have a couple to learn, but it's almost all done!) and playing 3 Popper Etudes a day certainly kept my hands conditioned, maybe a little too well - at times I was hurting so bad I had to take a day or two off from fear of injury. Plus it took a lot of time! More than I have most days, anyway. For the last year I've done my warm-ups (which I do religiously every time I practice), then playing around the circle of fifths, Poppers and Piattis, using the "I wonder what I feel like doing today" organizational method.
Today, I was talking about the issue with my massage therapist. He suggested that instead of flying by the seed of my pants, why not design a program for myself, approaching it like a fitness cross-training routine for cello. This makes so much sense it's a little ridiculous. Of course it should be a rotation of different cello-fitness routines, 2 days of muscle conditioning following by 3-5 days of cardio! Not sure what that exactly means yet, except that Popper is going to be heavily involved, as is Bach. It's easy to think about the left hand, but what about the bow, how does that factor in? Should there be explosiveness training involved, or are different forms of calisthenics enough if rotated with some isometric movement? And what does cardio mean for cello anyway? I think I just found my summer project...