A reader linked an interesting piece about Zone Training for endurance athletes. It got me thinking about physical training in general.
People have different goals for physical training. Aspiring or real athletes have a training program designed for their specific sport. Training for tennis is different than rowing training. Endurance training is an entirely different thing. Some people (very few, though) in the gym only care about lifting heavy and nothing else. Good for them. They have a goal. Some people simply jog on the treadmill every day, sit on the exercise bike reading the news, or swim laps, etc. Putting in the time. I don't know why they do that (the elderly excepted), but they are convinced it's good for them and they are doing something besides sitting so that's good.
However, most people just want what we discuss here: Fitness for Life. That means fitness for recreational sports and activities, an energetic and vigorous approach to life with enough strength to handle tough things and enough endurance to never feel tired or lazy. Not to mention the considerable mental benefits.
I think many people (as I did) suddenly hit a point at which one is forced to face the limits of energy, or strength, endurance, vitality, agility, power - whatever. It is depressing. That is the Come To Jesus moment.
That is why we focus our fitness posts on general, functional, fitness rather than on specialized forms of training. The physical basics: Cardio, Calisthenics, Muscle and bone Strength.