Keep the lower knee on the floor to support you as you build up strength in the arms and core.
Or instead of stacking the feet bring them apart slightly so that the outer edge of the right foot and the inner edge of the left foot are both on the floor. Or bend the top leg and put the foot flat on the floor in front of you – keeping the lower leg straight as in full Side Plank.
Pressing firmly through the hand will help you get lighter in the upper body. This is the press-rebound effect.
Squeeze the legs together to keep them strong and engaged.
Benefits
This is a great pose for strengthening and toning the arms, core and legs.
It also tests your balance helping to improve focus and concentration
Watch out for
Keep your shoulders aligned over your wrists and press the base of your fingers down, to protect your wrists.
If you are extra flexible in the elbow joints you may need to keep your arm very slightly bent to avoid over-extending.
Variations
Bring the foot of your upper leg onto the inner thigh (into Tree pose) keep the hips lifted high and push through the lower leg to keep it strong.
To come into the full variation of the pose, exhale and bend your upper leg. Hook your big toe with your fingers, inhale and straighten your leg to the sky.