What is it?
First of all, what exactly is foam rolling?

Massage Your Muscles (AKA Self-Myofascial Release) Using a foam roller is essentially a more affordable way to give yourself a deep tissue massage.

By slowing rolling over various areas of your body, you’ll help break up adhesions and scar tissue and speed up the healing and recovery process after your workout.

At least thats one of the theories!

Does it work?
Lets watch and find out…

References
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4637917/
http://sci-hub.cc/10.1123/jsr.2013-0025
https://www.ncbi.nlm.nih.gov/pubmed/25415413
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3679629/
http://sci-hub.cc/10.1249/MSS.0b013e3182a123db
http://sci-hub.cc/10.1519/JSC.0b013e31829480f5
http://www.sciencedirect.com/science/article/pii/S1360859215001138
http://sci-hub.cc/10.1249/JSR.0000000000000148
https://www.ncbi.nlm.nih.gov/pubmed/12173961