The two partners face each other, in the position SHIZENTAI HACHIJI DACHI自然八字立, they assume the position MUSUBI DACHI (heels together), the attacker bringing his right foot to his left foot and the defender his left foot to his right. They look at each other in the eyes for a moment. Then, leaning forward with the upper body straight, at an angle of approximately 30 degrees with a total view of the opponent's lower body without staring at any specific point (one second). They straighten up, look at each other in the eyes and then resume the stance HACHIJI DACHI (the feet return to their original position). When they are ready to begin (KISEI起勢), they assume their respective stances.
For instance, in GOHON五本, SANBON三本and KIHON IPPON KUMITE基本一本组手, from their respective stances, at a certain distance (MAAI間合) from SHIZENTAI HACHIJI DACHI自然體立(Natural stance), the attacker steps back with his right foot (or left) to assume ZENKUTSU DACHI前屈立(front stance), HIDARI GEDAN BARAI左下段擋受(left or right gedan bari downward arm block) or (MIGI右) and informs his opponent of the target and type of attack, while the defender maintains his position. The attacker must retreat. This is part of the REIGI禮儀towards his partner.
After each execution, each returns to his initial position of SHIZENTAI HACHIJI DACHI 自然八字立 by inhaling while bringing the displaced foot back, then exhaling while tensing the abdomen (HARA下腹) with the feeling that the KI氣is in the lower abdomen ready for the next movement.
It is of utmost importance that breathing is linked to the proper movement and awareness of the situation, whether executing REI禮, taking a position, or practicing KUMITE. Always remember that breathing has a very great influence not only on the health, but also on the physique, ability, technical level (power-speed) and the brain of person.
(Selected from the book - S.K.I. Kumite Kyohan by Soke Kanazawa)