Start in a high plank position with your hands directly under your shoulders and your body in a straight line.
Engage your core and lift your right hand off the ground, reaching across to tap your left shoulder.
Place your right hand back on the ground and repeat with your left hand tapping your right shoulder.
Continue alternating shoulder taps while keeping your hips and torso stable.
Repeat for the desired number of repetitions.
Activation
Abs
PrimarySets
3–5
Reps
8–12
Rest
60s