Check if your rope is the correct length. A jump rope that is too long or too short will make the double-unders more difficult than they need to be.
The rope should pass under you twice for every jump.
Make your footfalls as light as possible and try to stay relaxed. Tensing up can alter the flight path of the rope and make the double-under harder to achieve.
Make your wrists drive the rope and not your shoulders.
Check if your rope is the correct length. A jump rope that is too long or too short will make the double-unders more difficult than they need to be. Stand with your feet together and on the center of your rope. The handles should reach your arm pits. Tie a knot in your rope to shorten it or select a longer rope if necessary.
Begin jumping rope with your feet together. Focus on using your ankles and staying on the balls of your feet. Make your footfalls as light as possible and try to stay relaxed. Tensing up can alter the flight path of the rope and make the double-under harder to achieve.
Count yourself in using a three-turn count. On the count of three, accelerate the rope and jump slightly higher than normal. Pike your hips slightly and round your shoulders forward to make your body smaller and better able to pass through the loop in the rope. Ideally, you should land after the rope has rotated twice. If you were successful, return to your normal jump rope cadence and then attempt another double-under when you are ready. If you didn't manage a double-under this time, restart and try again.
Avoid double jumping.
Jump by lifting both your legs together and not one after the other.
