Re: What kind of exercises does a physical therapist do?
A treadmill doesn't strengthen your back.
To strengthen your back you need to need to strengthen the piroformis or core muscles. You do this with abdominal exercises. A physical therapist will also have you strengthen your hamstrings. A GOOD physical therapist will also have you do upper body toning - light weights, upper back exercises, etc.
I only did the treadmill as I chose. It was not part of my regime when I went to Physical Therapy sessions.
I had to use the big blue ball and do some exericses on that - after I did my warm-up stretching. I also used a couple different machines that worked on strengthening my leg muscles - because after all, it's important to learn to do things with your legs more than your back. If the legs are weak, you tend to use your back more, which is wrong.
As well, the PT exercises are only as good as you allow them to be. If you don't continue them at home and do them as they instruct you, you'll gain no benefit from them.