Notice the pattern:
Standing to bowing - DOWN
Bowing to standing - UP
Standing to prostration - DOWN
Prostration to kneeling - UP
Kneeling to prostration - DOWN
Prostration to standing - UP
Usually.
Standing to bowing - DOWN
Bowing to standing - UP
Standing to prostration - DOWN
Prostration to kneeling - UP
Kneeling to prostration - DOWN
Prostration to standing - UP
Usually.