One of the things I usually express to patients is that the only way they are officially "excused" from exercise is if they do NOT have any arms and legs - and even then, pelvic thrusts, etc... may certainly be appropriate.
That said, movement of any type is usually encouraged, but I will have to suggest as BB above that in order to achieve true long-term weight management, resistance training of any capacity is likely superior in this plight.
The rationale is a bit more complex however, but it can be read about in much greater detail in my e-book:
When comparing resistance vs. cardio, the ideal strategy would be to increase the number of relative mitochondria present in the body and while it is true, more oxidative metabolism occurs with cardiovascular training, it is the muscle fiber type trained that dictates resistance training's superiority. Cardiovascular activity usually stimulates what is known as a type I muscle fiber and resistance activity, a suggestive subset of type II's. While type II fibers are subject to more hypertrophy (growth) and type I's are not, there is more relative increases in the number of mitochondria with resistance training versus cardio, even though gram for gram or pound for pound, there are more mitochondria per type I fiber.
If this went too far in depth, please feel free to ask questions, continue to discuss below.
D_
