I don't think there is consensus on this issue, but I know you need to start where you are. It's always better to ease into these changes. The body loves homeostasis, so it responds to gradual steps with a lot less resistance.
If you're talking about having an exercise goal for health, it will be much more moderate than for weight loss. It might be good to post this question on the message board for fitness and exercise, as I think the coaches peruse the questions there regularly and will jump in with expertise when they think it is needed.
In the meantime, go for a walk, wiggle around to some music at home, or do whatever doesn't take a lot of prep. If there are activities you love, go do them more. If not, keep experimenting until you find something that charges you up. (Hint: it might not happen the first time you try!) You will have fun, sooner or later!
*"The goal of weight loss is incompatible with recovering from disordered eating." Center for Clinical Interventions
*The No S Diet saved my emotional life! Four years and counting. nosdiet.com/
*Be happy with this moment. This moment is your life.
*Get to the next meal hungry! www.sparkpeople.com/myspark/groups_i
|1,541 Days since: I began the NO S lifestyle