not getting results at 16/24 reps range, what gives?

[®owen]

I have to switch to pyramide the weight to be able to get some results, I was on a program for 4 months months doing 16/24 reps and I got very poor results, now that I'm following pyramide work out 16-12-10-8 I'm doing a lot better.
My legs are getting bigger so my arms as well, I believe I will stick to pyramide since is giving me better results, thanks for opinions.

 

[MasonicBodybuilder]

The key is to train to failure on all your working sets. You really want to incorporate all the rep ranges to hit all muscle fibres.

 

[muskate]

Your muscle fibres are comprised of three different types of muscle fibres.

There are 3 types of muscle fibers in all skeletal muscle cells –
• Red / Slow (Type I fibres, 'slow twitch fibres')
• Red / Fast (Type IIa fibres, 'fast oxidative fibres')
• White / Fast (Type IIb fibres, 'fast glycolytic fibres')

To efficiently train all 3 muscle fibres and to maximize growth, you want to train with a variety of rep ranges. Do at least one exercise in the 3-5 rep range, in the 8-12 rep range and 20-30 rep range