tempo and amplitude in powerlifting vs bodybuilding

[necr0potenc3]

I'm a BJJ (and former judo) practicioner I'm very new to weight lifting, all I've done before was martial arts but I've decided to take weightlifting seriously.

Something I've noticed is that bodybuilders usually use a tempo based on "weight-pumping" (explosive concentric, little to no excentric) and very low amplitude.

Powerlifters on the other hand use an extended tempo (explosive concentric, isometric and extended excentric) and maximum amplitude.

I understand the training method of powerlifters but I cant understand the one of BBs. Is there any scientific base for this?

Its easy to see it in the squat. BBs squat with very little amplitude while PLs squat atg.


PS: I could say that its just one or another BBer that trains like that and thats what we see on footage, but the BBers at my gym always train with weight-pumping + low amplitude so I'm a little confused here.

 

[al420]

Body Builders want to "look" big....

And while big, they are patheticly weak....

So coming from such a background I would think you want functional strength...

Unless a six-pack is job #1 then I would say a PL style routine will yeild better results...if you are a man. If you are a girl try 8-12 reps.

 

[s8nlilhlpr]

Since you are training for BJJ I would say explosive strength is what you are looking for. Bigger muscles won't really be an advantage, as it just gives someone else a good handhold on you. Most power comes from your legs, so I would prioritize them, and add a lot of speed/agility drills in.

 

[necr0potenc3]

sorry for not being specific, my training routine is ok for what I need.

I just wanted to know why BBers use limited amplitude and little to no tempo. If there is any foundation for it and if my assumption that training for sheer hypertrophy is based on limited amplitude and no tempo.