If you work out on a regular basis and all of a sudden get an injury then you probably think it's okay to stop exercising until you're completely healed. But unless you're on doctor-prescribed bedrest there's ALWAYS soemthing you can do to stay fit and lean.
Check out this fitness video to learn how to do Flex-R-cise, which involves flexing your muscles to slow down muscle loss when you can't do anything else.
Flex-R-cise is like electrostimulation but using your brain instead of an electronic contraption. Flex-R-cise is great when you are injured but its also appropriate for people who are so busy that they "dont have time to work out". If your job at work or home is so demanding that you never have a single second free during the day, you can still get in shape using Flex-R-cise! Beginners can gain strength and muscle mass just by following this routine and you can do it anywhere, anytime. You can do it on the bus, while waiting in line at the grocery store, or waiting to pick up the kids. Please note that gains using Flex-R-cise are very limited when compared to what can be accomplished with traditional weight training but Flex-R-cise is infinitely better than nothing!