I read research done by an Australian University that showed women who swapped 30 minutes of non interval cardio for 20 minutes of 8 seconds (fast) 12 seconds (regular) on an exercise bike lost more weight. So I changed my routine and it has worked for me.
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12 minute, body weight only workouts...pike squats, jump squats, reverse planks...all while on a 30 second interval timer. Do what you can for 30 seconds and move on to the next workout. Do cardio before and stretching after to avoid straining.
Good examples of the ones I am doing on found here...www.bodyrock.tv
I use the Japanese interval training system: Tabata. It's a beautiful piece of torture that only takes minutes to complete.
You can download apps that are free or very cheap so that you have the correct timer for it: 20 seconds on and 10 seconds rest. 8 exercise periods in one Tabata It is the best way to drop weight, to build muscle and work on your aerobic and anaerobic fitness. See more at www.spirited-sports.com
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