25 -50 LB Kettlebell Swings/1 Min Knuckle Pushups 5 Sec Top Hold 5 Sec Mid Hold With 25 LB Backpack.

Johnny Grube using a 50 lb kettlebell for 25 reps and wearing 25 lb backpack for 1 minute of knuckle push-ups 5 second hold at the top 5 second hold mid position.

3 rounds.

Tough.

www.wildmantraining.com