When I know I don't have time to workout I do what is called burst training. It only takes 12 minutes and you are done and you will continue burning fat all day. Here is how it works: You will do three rounds of short burst exercise and then rest. You can choose any exercise you want but you must do it as fast and as hard as you can. You will do the exercise for 20 seconds and then rest for 20 seconds, exercise for 20 seconds and then rest for 20 seconds, exercise for 20 seconds and then rest for 2 minutes. After the 2 minutes you repeat the whole circuit two more times, and your done.
I am a stay at home mother of 4 children eight and under. There is not a lot of extra time to go to the gym and working out. So I do my workouts at home. There are a ton of workout videos to choose from when it comes to working out at home and I am one to try them all. I had my fourth child in April of 2009. Two months after having him, I decided to do the p90x lean program. I started out doing it everyday, but having four kids at home I was limited to 3 times a week. So while it took me longer than 90 days I still saw results. In the beginning I could do absolutely no push ups or pull ups; I could not make it through the whole video doing everything properly; I could not do and still have a hard time doing the Ab Ripper, but I try to be careful since my abs are split from having children. While doing p90x I lost 15 pounds. I went down 3 or 4 pant sizes. I am definitely stronger and leaner. I can actually do push ups now after doing the p90x. I am still not where I want to be, but that is why I keep pushing play. Now I also do some Insanity, and have also done Billy's Boot Camp. I like to mix it up, but my favorite is the P90x.