I see a lot of guys the gym doing tons and tons of concentration curls trying to get ripped biceps.
While concentration curls are great for isolating your bicep and really working it hard, they have no practical application in the real world.
On top of that, there are plenty of other exercises that will work out your biceps, and entire arm for that matter, in a much more effective manner.
Chin ups are one such exercise and if you're doing a lot of concentration curls and are disagreeing with what I have to say, go do ten chin ups right now.
I'm betting most guys who do lots of curls will have a very hard time of doing just ten.
The reason? Well besides working more muscle groups than simple curls, they are also very hard on your biceps.
Just think about it for a minute.
How much do you weigh? How much does the dumbbell your curling weigh? Big difference, isn't it? Another problem with focusing on curls for ripped biceps is that the heavier you start going with your dumbbells, the more at risk your putting your back.
Just think about the position you sit in when you're doing concentration curls.
It's very awkward: your bent over, your elbow resting on your knee.
Your back is supporting a lot of weight and the heavier you go, the more weight your back has to hold up.
Working your back in a controlled manner is one thing, but that can be dangerous.
Especially since most guys will work their biceps out at the end of a workout, so you're more prone to mistakes and bad form.