I remember the days when I’d “see how I felt” in the gym and go from there. Once I switched to an every 5th day cycle, every day was a good day in the weightroom. I’d always make progress, usually by increasing the weight and when I didn’t it was time to change.
That was in 1997 and that’s when I began to question the 48 hour rule and also the approach to strength training used by many track coaches. Trying to cover too many bases with the strength workouts and not allowing enough recovery time, particularly for the lower body.
For what it’s worth, I helped a 31 year old sprinter get back to within 98% of his PR for 55 meters in 4 months and this was after a 3 year layoff from the sport. I think it would have been 99% if not for a late night at the disco-early squat workout-inspired minor back strain. I’m convinced it was related to the above.