Below are 6 key points for you to learn from.
1. Elbow positioning when curling
Generally
speaking the arms are too
far forward which instantly places tension on the anterior deltoids
taking tension away from the biceps. To make it more focused on the
biceps keep your elbows back and tucked to your sides. You'll notice the
difference immediately.
2. Lack of external rotation
When
curling with dumbbells a lot of people miss the external rotation at
the top of the rep which means they are missing out on valuable
stimulation. Make
sure you don't forget to do this, with a pause at the top!
3. Range of motion
Video
yourself doing any form of curl and ask yourself if you are really
using a full enough range of motion!? All too often I see people using
at best, 60% range of motion. This just isn't good enough. I want to see
near full extension of the arm, you'll stimulate more fibres.
4. Lack of stability
When
training triceps with pushdown exercises it's essential that you
maintain stability within your shoulder joint and elbow joint. The only
movement you want/need is through your elbow, working as a hinge. There
shouldn't be any sort of momentum or rocking, as soon as this occurs you
are losing tension from the triceps.
5. No pause
Triceps
respond particularly well to isometric tension, at the bottom of the
reps. Don't just throw the weight down and let it bounce back up.
Control the weight, hold it there and increase the amount of tension the
triceps have to deal with.
6. Wrist position
When
doing your triceps movements focus on keeping your wrists straight
rather than cocked back because the tension is greater on the triceps.
It also means at the isometric phase of the exercise you can generate a
more significant "squeeze."