AUTHOR TECHNIQUE - GERBEN KEIJZERS - MOBILITY WARM-UPS (PART 1) Posted by AUTHOR TEAM on July 20, 2018 In this series Axis black belt Gerben Keijzers shows us a range of mobility warm-ups that will help to elevate your overall game. Share Tweet Pin +1 ← Older Post Newer Post → Leave a comment Name Email Message Please note, comments must be approved before they are published