Alternate Arnold Press

[JStats]

When I do alternate arm seated Arnold press with DBs on my left side I tend to really lean to the right and struggle to lift, I get a slight twinge in the left side of my back. Anyone have any ideas why I’m doing it and what I can do to rectify it?

 

[Sean1332]

When I do alternate arm seated Arnold press with DBs on my left side I tend to really lean to the right and struggle to lift, I get a slight twinge in the left side of my back. Anyone have any ideas why I’m doing it and what I can do to rectify it?

Do a different exercise or don't alternate them so you don't lean.