I started a 10K training program a few weeks ago that included running, weight lifting, and strength training. I was excited to be devoted to a program with an end-date (10 weeks) and a goal (getting my mile time back down). I was hoping to tone up and lose a bit of weight before heading to the beach for a Memorial Day wedding in Mexico, although those weren’t my specific goals for the training.
Lo and behold, at the end of the first week I tweaked my back doing a core workout. My sacrum bone hurt a lot. It hurt to bend over or sit down. I figured it was muscle soreness and pushed through, taking my rest days as prescribed and stretching more.