About Jon

Jon Engum is a 8th Dan Kukkiwon Certified Taekwondo Grandmaster and holds Master rank in Hapkido and Kumdo. 

He is the author of Trembling Shock, Flexible Steel, and Creator and Chief Instructor of the Flexible Steel System, owner of Jon Engum’s Extreme Training and a StrongFirst Master Instructor who teaches Workshops, Courses and Certifications worldwide.

Call or email today to find out how to host a Workshop.

(218) 828-7063

Engums Extreme Training specializes in fitness education certifications. With our main focus on mobility, flexibility, stretching, strength and kettlebell instructor training and certification. Be sure to check out our books, dvd’s and upcoming events.