For strength training, the Coach suggests that we should follow a low speed in order to eliminate momentum. The rythm 2-1-2 is a good rule, from what he proposes.
This becomes very hard once I get on to higher levels. For instance, now I'm at step 5 of the pushup series but stuck at 2 sets of 15 reps. It seems impossible to add another rep with this speed and to reach the progression standard.
However, in a lot of videos on youtube, and even in Al Kavadlo's, the movements are often executed at quite a fast pace. And their bodies show that they still make gain, in term of strenth and mass, with this speed.
So now, should I increase the speed in workout to be similar to what others are doing or just stick with the 2-1-2 rhythm?