The Knee Tuck or Jackknife is a challenging exercise that works your body from head to toe. The exercise is somewhat similar to Rollouts, requiring your lower abdominals to contract isometrically, stabilizing your spine.
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Work your abs with medicine ball on the shelf crunches
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How To:
Have sex on a Swiss Gym Fit-Ball (sexercise)
-
How To:
Start a wrist powerball using the thumb technique
-
How To:
Do a standing incline fly
-
How To:
Do real hanging alternate twisting knee tucks
-
How To:
Do alternate power stability ball pikes and knee tucks
-
How To:
Train your core with gymnastic rings
-
How To:
Do pelvic tilts on a swiss ball
-
How To:
Do ab rockers
-
How To:
Exercise with a thigh master
-
How To:
Do a Gravitron tricep dips drop set
-
How To:
Use the control panel to set up your Power Plate
-
How To:
Do a bicep curl with an exercise ball incline
-
How To:
Do a standing incline press
-
How To:
Practice proper chest focused Gravitron machine dips
-
How To:
Build an Exercise Machine
-
How To:
Make a quick and easy homemade wrist roller
-
How To:
Tone up with an elastic band with SELF Magazine
-
How To:
Use a broom handle to get fit with SELF Magazine
-
How To:
Use a stability ball for seated alternate cable rows
-
How To:
Work your abs with medicine ball on the shelf crunches
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