I am trying to avoid injuries at all costs while still training for strength. I seem not to have the greatest recovery ability (42 yr male, healthy but unable to sleep more than 6 hours a day on average).
I work out once every four days (I was training once every three days but thanks to this useful site I became aware a month ago that it was too much for me). But even now, the night before the next strength training I can still press hard on my muscles and feel some light soreness.
It is not pain. And I need to press hard with a finger in order to feel that soreness. But it is there, perhaps signaling that my muscles have not yet recovered. Does that mean I am overtraining? I monitor other variables, like my RHR, that usually rises a bit each day before a workout but returns to normal one day later.