A Yale University study found that people with osteoarthritis of the knee experienced multiple benefits when treated with Swedish massage. (projectwellnessnow.com)
[2] Crowley DC, et al. «Safety and efficacy of undenatured type ll collagen in the treatment of osteoarthritis of the knee: a clinical trial.» (capsugel.com)
Another more recent study assessed the efficiency of collagen peptides in a randomized, double blind, controlled multicenter trial, in which 250 subjects with primary osteoarthritis of the knee were given 10g of collagen peptides daily. (primallyinspired.com)