The problem is that you cannot simply promote better circulation in the arms just by moving them
Circulatory pathologies aside, the best way to promote better blood circulation in the arms and in the hands is to avoid better circulation in other area
So if you run, talk much, eat, drink or do exercise before your performance your blood flow will be redirected in those other areas (legs, face, brain, digestive system, gall bladder biceps and triceps) and there will be less blood circulation in your hands
So avoiding redirection of circulation towards other areas is the best (if not the only way) to secure proper circulation in your hands
Daniel
Agreed.
Consider this, what causes the hands to be cold is the blood being diverted from that specific area of the body due to nervousness, actually fear (body considers it as danger). So the right solution would be to eliminate the danger. I know, its easier said than done. If the diversion is really due to the cold, increasing the heart rate will circulate blood through the body at a higher rate. The catch? The area from which the blood is being diverted will receive x%*5-99% .
x = rate it was receiving considering the diversion.
5-99% = % of the increase it will receive
This is a simplified model..
There are several other models to calculate this, but my days in bio/pharma are a long way behind me..

Also, the slightest increase in blood circulation to the motor nerves mean a world of difference (mechanically), as you've probably noticed...
Obviously there is the psychological aspect of it all..
But I don’t feel like going there..
