Simultaneously lift and expand the summit of the chest as you
actively extend the balls of the feet downwards.
The opposition between the lifting of the chest and extending the balls
of the feet takes place in all good positions in standing and walking.
This exercise initiates or accentuates the co-ordination of the muscles
used in standing. It tends also to harmonize and bring into unity all
the conditions so far attained, and gives practical application to those
parts of the body which are active all day, in standing, walking and in
sitting.
All exercises must be performed rhythmically. There are many elements
in rhythm, one is activity and passivity, and another is the alternation
of parts:--one limb is active and this helps alternation or rhythm.