By
eHow Sports & Fitness Editor
Difficulty: Moderately Easy
Step1
Rest on your hands and knees on a comfortable surface. If you have bad knees, you may want to add extra cushioning to protect your joints. This particular exercise should not be used for knee rehabilitation. Hold a body blade in your right hand and extend your arm straight out in front of you.
Step2
Engage the muscles of your abdomen and tuck your tail bone in, and then lift your left leg, extending it straight behind you. Flex your foot so that your toes are pulling in towards your torso and your heel is pressing down. Keep your gaze towards the ground, keeping your neck relaxed.
Step3
Begin to shake the body blade up and down in small rapid movements. You should begin to feel the body blade working the muscles of your arms, upper back, abs and hips. If your injury does not allow you to extend your leg back, simply drop your knee to the ground; however, it is still important that you keep your abs tight and tail bone tucked under.
Step4
Hold the extended position, shaking the blade for as long as is comfortable and then repeat on the opposite side. Make sure that you complete the exercise for an equal amount of time on both sides of your body, even if you are working to rehabilitate one side only.