Power balls
i am starting the gym again next week after a month out due to no work, so glad to be going back, however i was also looking at purchasing a power bal, half because of the fun competetive side, but they also say it promotes growth, muscle "toning" among other things, just wanted you opinion or views on these as to weather they are good good to increase muscle density etc,
heres link to main page
http://www.powerballs.com/
and to world record attempt
http://www.powerballs.com/akis15552.wmv
i am starting the gym again next week after a month out due to no work, so glad to be going back, however i was also looking at purchasing a power bal, half because of the fun competetive side, but they also say it promotes growth, muscle "toning" among other things, just wanted you opinion or views on these as to weather they are good good to increase muscle density etc,
heres link to main page
http://www.powerballs.com/
and to world record attempt
http://www.powerballs.com/akis15552.wmv
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