If you are too weak to do a pull-up, but instead hang from a bar and pull regardless, are you making any progress? Also why do most exercises need to be full reps to “count”?

Question

If you are too weak to do a pull-up, but instead hang from a bar and pull regardless, are you making any progress? Also why do most exercises need to be full reps to “count”?

In:

Answer 1

Tensing the muscles without causing movement is called isometric training, and does indeed work. It is especially used in rehabilitation to strengthen muscles, without taxing the joins much. It does not train intramuscular coordination, which helps generating forceful yet elegant movements. So keep on pulling! (Although easier exercise or considers a faster way to progress)