following on from all the previous posts it will probably help your game, because getting fit, healthy, and in shape is beneficial to you in many ways. however it wouldn't surprise me if it had some detrimental effects if taken to extremes (ie: bodybuilding). not that there's anything wrong with it if you want to do it but it'd most likely affect your pool game.
i also juggle a bit, and the issue is the same. in fact building a bit more muscle is even more beneficial because it helps build your endurance and your arms don't tire as quicky juggling clubs especially. however don't try and juggle straight after excercising because it's like the example of playing basketball straight afterwards - you won't be able to do it well. and likewise with pool - if you take the muscle building to the next level (bodybuilding) then instead of strengthening and improving your body, you're completely changing your body's nature fundamentally. which won't help your pool game.
i also juggle a bit, and the issue is the same. in fact building a bit more muscle is even more beneficial because it helps build your endurance and your arms don't tire as quicky juggling clubs especially. however don't try and juggle straight after excercising because it's like the example of playing basketball straight afterwards - you won't be able to do it well. and likewise with pool - if you take the muscle building to the next level (bodybuilding) then instead of strengthening and improving your body, you're completely changing your body's nature fundamentally. which won't help your pool game.