Good question. Exercises on OA knee has been performing form many decades and it has built strong positive evidence. As you are going to talk in front of experts I would suggest to prepare the material/ slides using recent guidelines/ position statements/ review etc. Below is some of the recent guidelines on Exercise and OA Knee. Hope this will serve the purpose...
1) Impact of exercise type and dose on pain and disability in knee osteoarthritis: a systematic review and meta-regression analysis of randomized controlled trials.
Juhl C, Christensen R, Roos EM, Zhang W, Lund H.
Arthritis Rheumatol. 2014 Mar;66(3):622-36
2) Web-based therapeutic exercise resource center as a treatment for knee osteoarthritis: a prospective cohort pilot study.
Brooks MA, Beaulieu JE, Severson HH, Wille CM, Cooper D, Gau JM, Heiderscheit BC.