Dont formally practice one now. But do pad work and self defense training with friend and girlfriend few times a week.I do have a basis in the core structure JKD ( no expect) and have learned myself alot of Krav Maga techniques which are very simple.

i agree with the above,you should like what you do.i very rarely dread my work outs.actually i never dread them.

Aaron,

What kind of martial art do you practice?

Agree guys Enjoyment is a big factor with sticking with a workout and sometimes variety is the spice of life. why ive reduced the Iso training and have found passion with my Martial arts training again.

Aaron good insights! I think Bob is trying to touch this, I would say You should enjoy what you're doing.

Slastonecold simple is a good thing. It's not rocket science. Goals play a big part in how we set up our routines.

My goals are different than someone like You. A couple of goals I have right now is have fun with what I'm doing and experiment with a couple of different things. By having fun it keeps me interested. And by experimenting I see what works for me and I can give my insights to others.

Aaron has given a brilliant answer. I would add that a pleasure during workout and long lasting good feelings after exercises are also important factors for a routine design.

at 69 my goal is to do things i want to do with out problems. i do mainly isometrics,some push-ups and walk. i feel pretty good for my age

I guess workout design is largely based on recovery, take into account what else you do and goals. what is your main goal? I know you often get overlap muscle building/ fat loss as well but whats the main goal? Fatloss, Muscle building? Skill development, conditioning? Tha should also be the basis of a program and maybe some progression planning. Increasing intensity, reps, exercuse difficulty etc. That can be done numerous ways!!