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Jef Koelewijn, shadow boxing outside 1. 2019.

A boxing straight punches drill - Left, Left-right, Right. Jef Koelewijn.

5 kilogram dumbbell lateral pinch very short leverage holds. Jef Koelewijn.

5 kilogram dumbbell 15 cm broad pinch grip curls. Jef Koelewijn.

Martial arts training 2019 Two hard single left hammer fists. Jef Koelewijn.

Boxing training 2019 Straight punches speed punches drill. Jef Koelewijn.

Bashing, hitting my abs with my underarms 2019 part 10. Jef Koelewijn.

Jef Koelewijn, chest beating 2019 part 29

One power punch from the side 2. Jef Koelewijn.

Martial arts One hard hammer fist with right 2. Jef Koelewijn.

115 kilogram bench press with a 71,5 cm spaced grip for 7 times.

**, boxing training 2019 Ducking underby with speed

Boxing training 2019 Weaving with speed. Jef Koelewijn.

Boxing training 2019 Ducking and making an angle. Jef Koelewijn.

Boxing training 2019 Weaving and making angles part 2 Medium speed. Jef Koelewijn.

Boxing training 2019 Weaving and making angles part 1 low speed. Jef Koelewijn.

Boxing training 2019 One southpaw right straight power punch. Jef Koelewijn.

RB 100 hand gripper closes with the right hand, without setting for 4 times. **.

RB 100 hand gripper reverse, inverted closes with the left hand, without setting for 4 times. Jef Koelewijn.

**, one very strict 5 KG sledgehammer lever

Contracting as many muscles as hard as possible 13. Gottfried (Jeffried) Koelewijn

Contracting as much muscles as hard as possible with the werewolf position. Jef Koelewijn.

MMA (mixed martial arts) training 2019 Two hard left straights. Jef Koelewijn.

Jef Koelewijn, boxing training 2019 Shadow boxing while only throwing straight punches 16

MMA (mixed martial arts) training 2019 Three hard right knees 4

MMA (mixed martial arts) training 2019 Straight punches and right front kick combinations. Jef Koelewijn.

**, martial arts training 2019 One very hard single right power punch from the side 7

Jef Koelewijn, one very hard hammer fist 3

**, martial arts One hard hammer fist with right

**, martial arts, one hard hammer fist with left

Jef Koelewijn (**), RB 100 hand gripper closes with the right hand and without setting x 3

127 kilogram, 50 millimetre axle bar (thick bar) grip lift and hold for around 2 seconds

Jef Koelewijn, 12,73 kilogram plate curls with right x 6

Jef Koelewijn, 12,65 kilogram right hand lateral pinch grip lift with a straight arm

Jef Koelewijn, 12,65 kilogram left hand lateral pinch grip lift with a straight arm

Jef Koelewijn, RB 100 hand gripper reverse, inverted closes with the right hand, without setting for 4 times

Jef Koelewijn, training for the hardest punches One very hard right straight power punch 2

12,9 kilogram lateral pinch grip lift with the left hand and a straight arm

6,95 kilogram left hand 20 cent coin lateral pinch grip lift with a bend arm. Jef Koelewijn.

6,45 kilogram right hand 20 cent coin lateral pinch grip lift with a straight arm. Jef Koelewijn.

Training for the hardest punches One very hard right straight power punch 2. Jef Koelewijn.

Training for the hardest punches One power punch left cross. Jef Koelewijn.

Jef Koelewijn, three single superman power punches

Jef Koelewijn, one very hard superman power punch

One very hard hammer fist 2. Jef Koelewijn.

Jef Koelewijn, one very hard hammer fist 1

Jef Koelewijn martial arts training 2019 Right hammer fists and sideways hammer fists

Martial arts training 2019 Left hammer fists and sideways hammer fists

Jef Koelewijn boxing training 2019 Shadow boxing while only throwing straight punches 15

Jef Koelewijn, boxing training 2019 Hard and fast punches right after each other