Fast twitch/Slow twitch.

**pablo2100** · 23-06-2006 01:23 PM

you may all think this is a stupid post but it was something i was chatting to my gym buddy about so thought i'd put it up for discussion.....

have you noticed that sometimes people have different sized arms and different strength between left and right , despite working out evenly and everything. we thought it could be because your dominant arm, (right for me) gets worked more during the day and your less dominant arm gets worked less during the day so most of it's work is in the gym. Could this mean the dominant arm has more slow twitch fibres than the other one and therefore not be as specialised for weights?

P.S. Let's try to steer clear of the obvious, using the dominant arm for "endurance" excersises!!

what yo guys reckon?

**M8tRiX** · 23-06-2006 01:45 PM

nah tooooo much w**king i think

**pablo2100** · 23-06-2006 01:52 PM

Quote

Originally Posted by M8tRiX

nah tooooo much w**king i think

first to get it in there!!!!!!

**dipsy** · 23-06-2006 01:56 PM

dont think so matey. i think its how the body is wired. the neural pathways gets stronger the more you use it hence the dorminant arm is a tad stronger.

me $0.02

dipsy.

**pablo2100** · 23-06-2006 02:31 PM

yeash but sometimes peoples dominant arm is small, i think this might be cause of all those pesky slow twichers!

**Bison** · 23-06-2006 04:31 PM

Both my arms are the same size. I'm right handed to a fault, I can't really do anything with my left hand... trust me I've tried!

ahem! anyway... my point is my left arm is stronger than my right in the gym but I'd say it 'feels' weaker at everything. Weird to explain.

If I was lifting something I'd try with my right first as it naturally feels the stronger mentally BUT when I'm training and I use dumbells my right always hits failure before my left. I've always been able to bang a few more reps out with my left, it just seems to be able to keep going that bit longer.

I'd also say when I'm hitting failure on barbell curls my left will carry my right on the last rep and get me through it.

**pablo2100** · 23-06-2006 05:37 PM

Quote

Originally Posted by Bison

Both my arms are the same size. I'm right handed to a fault, I can't really do anything with my left hand... trust me I've tried!

ahem! anyway... my point is my left arm is stronger than my right in the gym but I'd say it 'feels' weaker at everything. Weird to explain.

If I was lifting something I'd try with my right first as it naturally feels the stronger mentally BUT when I'm training and I use dumbells my right always hits failure before my left. I've always been able to bang a few more reps out with my left, it just seems to be able to keep going that bit longer.

I'd also say when I'm hitting failure on barbell curls my left will carry my right on the last rep and get me through it.

yeah see this is what i get... i'm sure it's cause my/your left arm is more specialised for weights than the right which is more of a all rounder!

**Tom** · 23-06-2006 05:37 PM

the % of fast twitch and slow twich muscles are also gentically inherited, and the way u workout and use during the day so its nature and nurture.

**nrage04** · 23-06-2006 06:14 PM

yep. unfortunatley the human body naturally isnt symetrical. So one arm, one leg, one pec etc will always be slightly bigger/stronger. In some its barely if atall noticable, in others its obvious. Just nature, all you can do is make the best of it.