Fast or Slow Crunchs

SuppFiend · 07-08-2009, 10:11 AM

does it make much of a difference if you do your crunches super fast (while maintaining solid form) as opposed to doing them super slow and keeping the muscle "under tension" for a longer period of time.. just wondering bc i usually do them super fast to get my heart rate up and get the blood flowing but logic would kinda suggest that the longer a muscle is under tension the more it will "grow"...thoughts?

KurtyJ99 · 07-08-2009, 10:12 AM

I prefer slow and squeezing.

theapexxxx · 07-08-2009, 10:43 AM

I prefer going fast in the concentric phase and slow on eccentric, but to each their own.

Note: Apparently fast (or dynamic) concentric phases activate more fast twitch muscle fibres and creates a sensation of failure with every rep.

cable3333 · 07-08-2009, 11:37 AM

i prefer something in the middle not too fast not too slow lmao

Vigor · 07-08-2009, 01:20 PM

I prefer cable crunches and on those in particular, I go with a progressive routine.

I go slow initially and really concentrate, then begin to speed things up to bang out additional reps/partials.

cable3333 · 07-08-2009, 01:58 PM

what are cable crunches??

-Lucifer · 07-08-2009, 02:07 PM

Quote:

Originally Posted by cable3333

what are cable crunches??

Tingling · 07-08-2009, 02:23 PM

Quote:

Originally Posted by cable3333

i prefer something in the middle not too fast not too slow lmao

yea me to lol

Hayeder · 07-08-2009, 05:12 PM

Quote:

Originally Posted by SuppFiend

does it make much of a difference if you do your crunches super fast (while maintaining solid form) as opposed to doing them super slow and keeping the muscle "under tension" for a longer period of time.. just wondering bc i usually do them super fast to get my heart rate up and get the blood flowing but logic would kinda suggest that the longer a muscle is under tension the more it will "grow"...thoughts?

slow and squeezing for me, I used to do fast sit ups like everyone else then woke up, started doing slow, proper crunches and really, really feel it. My abs tighten up like mad, it is a crazy sensation.

RE: when you mentioned fast but still with good form, is controlled rep speed not part of good form?

SuppFiend · 07-08-2009, 08:12 PM

true...i deff. do feel more of a "burn" when i do them slower

bossavery · 07-08-2009, 09:59 PM

I like to do mine slow and keep them flexed. I see people doing it fast that seems like they are using momentum.

LtMeyer · 07-09-2009, 11:29 AM

I do mine slow and tight. but the question does this help to get them shredded or increase the size of the muscle? There always seems to be a different technique to achieve different outcomes.