There are a ton of things and anybody can improve their strength once they find what works for them....Personally I get my best gains on a Bill Starr style program.....an example would be a full body workout on M-W-F focusing on three major lifts, Bill Starr calls the bench, Squat, and Power Clean the big three, and that would be a good base for the first time you try a program like this, but if you are a competitive powerlifter, just substitute the deadlift for the power clean.... Monday is your heavy day or your test day.....I will use Bench Press for example, you would do 5 sets of 5 building up to a 5 rep max on your fifth set....then on Wed you have your light day, this attention to form session will improve your strength by perfecting technique, use 5 sets of five, but your final set should be 65% of what you used on Monday......then on Friday it is a medium day, the point of this is to practice with moderately heavy weight to get ready for Monday, but not to push yourself to failure....you can either do something like 5 sets of five with the final set being 80% of your work load from Mon....you you can go 5-5-5-3-3 working up to your final set of 3 with about 5 lbs more than you used for 5 reps on the previous Mon.......This has always worked great for me.....I also do a lot of good mornings, hyperextensions, HEAVY stiff leg deadlifts, and ab work, the torso strength and felxibility helps prevvent injury.....