I use and love my foam roller. Has kept me from needing adjustments from a professional for quite some time.
I found this and thought it was interesting.
A few thoughts on Foam Rolling: I believe the mechanisms of foam rolling are neural and temporary. Gained ROM seems to begin decreasing again in as little as 10 minutes (MacDonald et al., 2012).
I wouldn't recommend foam rolling just because it's something you think you should be doing/feel guilty if you don't do - the DNIC argument means it MAY have addictive properties. I'd recommend it before a workout to gain extra ROM if you lack it. This will create a "window of opportunity" to work through a ROM or work a muscle that is tonic or has a trigger point.
Speaking of trigger points, they're associated with muscle weaknesses. Just rolling/stretching probably won't do much. Use that window of opportunity to correct the weakness/imbalance and strengthen the "problem".
If you have a chronic ROM problem, start static stretching regularly. I view foam rollers as a bandaid for a larger problem.
It's not the end-all, be-all, but it is a helpful tool.
All of that being said, foam rolling most likely does not produce physical changes. The only things I've read relating to "adhesions" are in normal, healthy muscle that occur during, and only during muscle contraction. I've never seen anything relating fascial adhesions in the literature. It's been established that we cannot modify the fascia through manual therapy. So, I don't see why foam rolling more often and throughout the day would be more beneficial.
Further reading:
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http://www.bettermovement.org/2013/how-does-foam-rolling-work/
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http://bretcontreras.com/how-does-foam-rolling-work-and-why-smr-should-be-called-smt/
- Coach Andrew