Asume the basic standing posture, but with the arms out to the sides at about navel height an sligthly forward crouch a little as if sitting down slightly and keep the back erect. When one is relaxed and the attention collected, shift one’s weight completely onto the right foot and strain on the hip. Move the left foot straight back a half a step then forwards in an inward curve, brushing past the right instep and out forwards to a place in front of its original position, turning the toes out a bit as is lands. Shift the weight forward on to the left leg, turning the torso slightly to the left as one does so, then bring right foot forward in a curve past left instep and out to the front, turning toes out slightly as it lands. Shift weight onto the wright leg again, turning torso slightly to the left as one moves, then take another a step with left foot. Continue forwards and then backwards in this was for as long as comfortable.
When taking a pace, raise the knee slightly, keep toes straight and do not raise foot to far off ground. It should feel as if dragging one’s feet through mud, and as gentle as if one were rolling a ball along with one’s toes. Again the motion must be smooth and unbroken.
(Traditional Chinese Therapeutic Exercises: Standing Pole (dec 1994) J.P.C. Moffett, Wang Xuanjie p. 65-67)
There are many kinds of stepwork in Dachengquan, and Mocabu or friction step is the most basic one. The posture is as follows: Stand naturally with two feet in parallel, apart form the legs which bend slightly at the knee, the posture is like standing attention. Keep torso erect, shoulders relaxed, arms stretched sideways, forming an angle of about 60 degrees with the body. With fingers parted naturally and palms facing downward as if you where pressing two big balloons, raise the head upright and drop to half a squat, with chest in and back intense. See that you have abundant energy, a quiet and easy mind and a substatiel abdomen. After standing in this way for some time, with the body weight on the soles of the feet, shift weight onto the left hip and slowly move right foot horizontally in a small arc to the right with the toes forward and land right on outer right side. The shift the weight onto the right hip, and move left foot in the same way as the right one has just done, and lands on the outer left side. The feet are desirably keept one foot length and a half apart all the time. Repeat the above mentioned movements alternatively with one foot and another. In practising this skill, care must be taken that the knee-cap is accompanied be an intention of a slight up-lift, toes are slightly hooked and the sole is not to high above ground. At the same time imagine that two feet are walking in shallow water, overcoming resistance. All the movements should be steady and flexible flowing easy and comfortable. This is the advacing posture. For retreating posture, just reverse the order of movements.
A ballad for Mocabu goes as follows:
With the torso erect and the head upright, He walks like a chicken but with torso a bit inclined.
Advance or retreat at will as the hip and shoulder move, Weaves rise and fall as the knee leaps and the foot circles.
(Dachengquan (jul 1988) Wang Xuanjie p. 48-49)