Abramson Cancer Center of the University of Pennsylvania researchers report the results of a study to determine if progressive weight training increases the risk of developing lymphedema -- a buildup of lymphatic fluid under the skin that causes arm swelling for some breast cancer survivors after lymph node removal -- and found that weight-bearing exercise did not cause a higher incidence of this painful condition.

Because many women who undergo initial breast cancer diagnosis have lymph nodes removed to determine if the cancer has spread beyond the original tumor site, lymphedema is a real concern. Lymphedema can occur soon after lymph node removal, or years later. Breast cancer survivors are advised to alter some activities and to avoid undue physical strain when using the affected arm.

However, from the results of this small study, breast cancer survivors are assured that slow, light weight lifting is not a cause for concern. Personally, I use small five pound hand weights as part of my exercise routine, and like the researchers, would advise breast cancer survivors to avoid lifting weights heavier than five pounds until a study spanning several years is conducted.