Hello,
Thank you for your question and participation. I would advise against this. Again, I am not a physician but adding extra weight can cause joint or other problems. I have worked with too many people that wanted to lose weight so badly that they over-exercised and injured themselves. What some people have tried is changing their exercise program. For example, maybe someone has been swimming, and now they find a friend to walk with instead to add variety. I recommend talking to your physician about a new exercise program that would be healthy for you.

Here is a link to several fitness articles that might also be helpful: http://www.mayoclinic.org/healthy-lifestyle/fitness/in-depth/HLV-20049447