Start in a forearm plank position with elbows under shoulders
Engage your core and keep your body in a straight line
Shift your weight slightly forward and lift one arm off the floor
Reach that arm forward or across your body
Rotate your torso and hips to one side
Stack your feet or place one foot in front of the other for balance
Hold the side plank position briefly
Return to the forearm plank position
Repeat on the other side
Keep your hips lifted and avoid sagging
Keep your neck neutral and gaze down
Move slowly and with control