Hi artyk!
I hope that your injury is better. Walking was what I started with when I weighed 275 lbs. I started slowly and built up to an hour of walking a day then more as I got stronger. After I lost about 15 pounds, I noticed that I had MUCH more endurance and was a lot less sluggish than I had been.
People told me that exercise would GIVE me energy. I didn't believe them UNTIL I actually TRIED it! It's TRUE!
Exercise is important, but watching the amounts of food and calories is very important, too! I discovered that although I was exercising for an hour to an hour and a half a day, I was NOT losing weight because I was eating too many calories! There is a great site called Fitday where you can log your calories and the amount of exercise that you do. It is FREE and really helps me a lot. Here's the address:
www.Fitday.com
I wish you luck and hope you will visit and post often!
Cheryl