There may be a magic volume of exercise, but...

but I don't know what it may be because I can't access the full text! GAHH! Stupid epub ahead of print getting my hopes up!

Anyway, new study found that breast cancer survivors who performed 80% or more of the prescribed exercise had a significant improvement in inflammation biomarkers, while below that level had no effect. Unfortunately, the abstract doesn't say way the prescription was, so I have no idea what 80% is either! Hopefully later this will become available and then I can update this post.

Cancer Prev Res (Phila). 2012 Dec 4. [Epub ahead of print]

Effect of Exercise on Markers of Inflammation in Breast Cancer Survivors: The Yale Exercise and Survivorship Study.

Jones SB, Thomas GA, Hesselsweet SD, Alvarez-Reeves M, Yu H, Irwin ML.