True fitness requires attention
in several areas and they're all separate but equal.
There's the muscle and bone strength, which is
what you achieve when you work with resistance or weights.
There's the aerobic part of it, the cardiovascular conditioning
which is best served by, say, brisk walking,
or those exercises that maintain an elevated heart rate for at least 20 minutes and that also burns calories, makes you slimmer.
Then there's the exercises for flexibility to maintain and increase your flexibility which is stretching, controlled stretching.
It's important to know correct form when you exercise so you can prevent injury
and that's a matter of education. I always tell the people that exercise with me that form is much more important than function actually.
If you have the form correct then the intensity will follow.
I tell people to make sure when they're exercising that their shoulders and hips are square, meaning that you're not twisting your body, that your knees are somewhat flexed if you're standing,that your back is in a neutral position. Look at yourself in the mirror and just see that your body is in alignment.