Please go to the Total Health website and check out the BAR exercise program. It's actually easy, effective, and pretty cool. Check it out. The game plan for now, until the warm weather arrives here anyway, is to keep using this system until I can get out and work the warm earth. The psychological benefit to working the ground, sweating, and aching that evening while you rest is one of the most incredible feelings for me.
Nothing is better than good, hard, honest exertion of muscle, sinew, and energy.
And for you if that's walking, running, lifting, or tending to daily chores, enjoy and celebrate that. I sure do. One more thing, and it's important. By making the body stronger, you are also making the mind stronger. Just wait, you'll see.