Since I started my weight loss journey last July, I have lost 45 pounds and I have gained almost 20 pounds of muscle. I love working out, NOW. Last year was a different story. I was so over weight I had to start with doing bed exercises and work my way up so I think anytime you can move is a good thing. Its all going to use energy but never a waste of time in my opinion. Great question btw.
Well done, Pamela.
Done it yourself, or by a trainer.