10. Russian twist: Sit on the floor with the knees bent and feet together and lifted a few inches off the floor. With the back at a 45-degree angle from the ground, move the arms from one side to another in a twisting motion. Go super slow, twisting the shoulders completely from side to side.
11. Ski abs: Start in pushup position with hands under the shoulders and core engaged. Jump the feet to the left side of the body, as close to the upper torso as possible. Jump the legs back to a straight plank position and repeat on the right side.
With the exception of the weighted movements, most of these can be performed anywhere, any time. All you need is a set of comfy clothes and a serious work ethic. To make keeping track of the time easier, consider downloading a Tabata timer app. Again, consider meeting with a trainer to go over correct form (even if you've previously done these moves) before starting a Tabata fitness regimen to prevent injury.
What's your go-to Tabata move? Did our experts miss any of your favorites? Let us know in the comments below or tweet the author @SophBreene.