Here we have younger men in their 20's on a 12 - week progressive strength training program. (kylekranz.com)
Many perceive them only as stretching exercise, without focusing on progressive strength gains, and are willing to do same number of reps with the same weight in each next workout. (fitnessandpower.com)
Right now my goal is 10 sets of 20 but from what I've read that seems a bit high - what is a reasonable number for progressive strength training with push - ups? (roughstrength.com)