ARCing using Power ball

[varunr]

Hi,


I am a graduate student and spend a lot of sitting in front of my lab equipment waiting for data to generate itself.  I've recently started using a powerball during this downtime, although not with the intent of ARCing, and feel a pump in my forearms similar to when I'm ARCing. Is this a legitimate substitute/supplement to ARC training or am I better off looking at climbing pictures and getting my pyshe on for the next training session?  

Thanks 

[brendann]

I think your time would be better spent with a hangboard in the doorway. 
ARCing is about technique, and suffering and the powerball is neither. 

[jonfrisby]

Also concentric contractions are not super relevant to training for isometric strength so the pump resistance element is also diminished