Getting more exact times

 For getting the time of a sprint

Making a | exactly at the point, just before the first movement or push off

And a | exactly at the point of crossing the line.

And removing the part before the first | and the part after the second |

And then the time should be visable.

Bending metal with a belt around each hand

 Bending metal with a textile belt around each hand.

Or maybe an artificial leather belt.

Chest muscles bashing with the underside of the fist

 Chest muscles bashing with the underside of the fist.

Explosive fist pushes

 Explosive fist pushes. Against a heavy bag.

Forwards.

And sideways.

Holding a hexagonal dumbbell with another hexagonal dumbbell on top of it, with one hand.

 Holding a hexagonal dumbbell with another hexagonal dumbbell on top of it, with one hand.

Holding a hexagonal dumbbell with another hexagonal dumbbell on top of it

Holding a hexagonal dumbbell with another hexagonal dumbbell on top of it.

A dumbbell training

 1 hammer curl, 1 normal curl, 1 inward hammer curl and then 1 reverse curl.

JK (Jef Koel)