For those folks trying to train for a sports, lose weight, or just stay fit – do you have any advice on how to build a conditioning program?

I advise first and foremost to spend some time writing down your goals. Training for  a marathon is much different than training to lose weight or get ready for the upcoming soccer season. It may be helpful to have a certified strength and condition specialist with expertise with your specific goals to help set up the program.  It’s important to also be sure to discuss your health issues and typical aches and pains in order to avoid exercises, which may exacerbate underlying issues. The program should have a mixture of cardiovascular, strength, and plyometric training. Lastly, do not over-train and be sure rest and recovery days are built in to your training to prevent injury.