Arm strength tips?

So I've been playing for a good while and as of late, I have joined a metal/thrash/progressive band. I play at least an hour a day and have no problems playing the songs, and with most metal bands, there is a large factor in down picking a lot and hitting the strings hard. I've found that as I work to downpick pretty much everything possible, my picking hand shoulder and sometimes my forearm get tired and I can no longer keep up to speed with the rest of the band. Any tips or excercises to help with that fatigue?

everytime you finish playing strum as fast as you can until your arm gives out,then do it everytime you play,that should build some endurence

UP that hour to at least 4 hours (non-stop if poss) minimum a day and you'll lose the fatigue ..and mebbe have the band trying to keep up w/ YOU *-)

RAWK!
Cs

relax... thats my advice to you

Okay. Yeah I generally play a few hours a day and have for years now but an hour is the minimum when I'm busy or whatever. I guess I was just a bit worried because I have been playing for so long and I was wondering if my posture or the way I was playing was causing it. I never have problems when we're playing a set on stage because of the adrenaline, it's mainly when we're practicing or I'm practicing at home. Anyways thanks for the tips and I'll keep working at it.

masterbation.































































nah im just kidding haha how bout those squeeze ball stress ball things...














































































or masterbation whatever tickles your fancy :) hahahahaha

Well if that's the key then I'm in trouble cause I've been using that technique nonstop since I was 15.

^^hahahah