Monday: All the Crossfit machines at the gym (all 3) were taken, so I went walking outside. 1.6 mi, 30 minutes, then inside to stretch and do some gentle upper ab crunches (just head and shoulders).
Wednesday: Elliptical machine 30 min, worked up quite a sweat! Bicep curls, shoulder presses, tris with 5lb weights 3 sets of 10 each. 5 10-count upper ab crunches like Monday's. Stretching.
1 1/2 weeks since injury. I'm thinking of trying a slow, shuffling, short jog on Monday once I've past the 2-week point. My back feels 85% normal, tight in lower left .