- Joined
- Jul 7, 2013
- Messages
- 88
If you just look at the bicep working you can see what happening.
Hold the arm bent 90deg and give a thumbs up with your hand... Look at the bicep.
Now turn the thumb out, supination the hand. Watch the bicep contract more.
No w imagine a straight bar, as you go wider you have to further supinate the wrist at the top...
Personally I like to do shoulder width for straight BB standing curls. If I want to really focus on the top contraction in a supinated position I will use DBs so I can really turn the hand. It also allows the muscle to go through the full rotating motion involved in supination the hand.
Hold the arm bent 90deg and give a thumbs up with your hand... Look at the bicep.
Now turn the thumb out, supination the hand. Watch the bicep contract more.
No w imagine a straight bar, as you go wider you have to further supinate the wrist at the top...
Personally I like to do shoulder width for straight BB standing curls. If I want to really focus on the top contraction in a supinated position I will use DBs so I can really turn the hand. It also allows the muscle to go through the full rotating motion involved in supination the hand.