Tabata!

Looking for a change in your workout routine?  Try your next workout in the form of a Tabata workout from CrossFit.  Tabata workouts are bringing a specific type of interval training to the forefront of the fitness world right now.
All you need to do is choose a series of exercises and use time rather than repetitions to complete them.  Perform your first exercise for twenty seconds followed by ten seconds of rest.  Repeat that circuit eight times straight before moving on to your next exercise and doing the same thing.
You’ll be surprised at how tough this can get!  Be sure to adjust your weights properly before beginning.  Don’t expect to use the same weight that you would use for a ten repetition set.  This has a lot to do with muscle endurance and you WILL be struggling to get through the last few sets if you’ve chosen the proper weights.