danno said:
Nothing I do though seems to really get at the lower back. Is there any routine that would help strengthen this area?
Before you focus on strengthening the area, I would focus on developing a solid muscular endurance base.More and more research lately has shown that muscular endurance, rather than muscular strength, is important for reducing your chances of low back injury.This is because of the length of time the torso muscles must engage in order to hold proper posture and assist in bending motions.Injury prevention should be your primary focus.Then you can focus on strength exercises.
For direct lower back work, I would suggest either supermans or superdogs using a static contraction with each rep.For supermans, look here:
A superdog is basically the same idea, except you start on all fours.Then you simply extend your right arm and your left leg and hold this position for 5-10 seconds, then repeat with the opposite limbs.
These isometric-style reps are great for building strength and endurance.In addition to supermans and superdogs, I would integrate some traditional low back exercises like back extensions and reverse hypers.You can do some static pauses on the back extensions as well.
Also, don't neglect the abs.Using the same concept of muscular enduarnce, try the plank exercise.Lying face down on the ground, raise yourself up and support using just your forearms and toes.Keep a tight lower back, flex your abs tight, and hold for 30-90 seconds per set.
Once you have developed a sufficient amount of muscular endurance, then you can move on to exercises like weighted back extensions, stiff-legged deadlifts, and maybe good mornings if you have a healthy low back and good hamstring flexibility.