Sports

 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 o...

 Bending metal with a textile belt around each hand. Or maybe an artificial leather belt.

 Chest muscles bashing with the underside of the fist.

 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.

  1 hammer curl, 1 normal curl, 1 inward hammer curl and then 1 reverse curl. JK (Jef Koel)