The most important thing is to begin with light weights. Even if you did weight training before breast cancer, you need to begin with easy weights to see how your body reacts now that your lymph system is compromised. Our bodies can compensate, but they need a chance to adjust to the change without being overloaded.
So begin with light weights. You may want to begin with slow, no-weight exercises. No-weight exercises, using just the weight of your arm, can be effective at building strength if done properly. The key is to do the exercises in a slow, controlled manner. For example, if you're doing a straight arm raise, raise your arm to shoulder height, hold for a couple of seconds, and lower. The raising and lowering should take at least a few seconds. It's especially important to lower your arm slowly, since about 70% of the work our bodies do in an exercise is in the lowering.
As you gain strength, you can increase the number of repetitions or number of sets, or the amount of weight. But don't do both at once. And as you increase the weight, do it gradually. At Life-Cise, I often recommend using water bottles for weights. Depending on the size, they weigh about a pound or two, and you can vary the weight by pouring out (or drinking) some of the water.
It's also a good idea to measure your arm at several places. Keep a record of the measurements and monitor yourself for any swelling. If you do have some swelling, back off the weight a little and talk to your doctor or lymphedema specialist.

And always remember, the risk of lymphedema is ongoing. Just because you haven't had a problem doesn't mean you can't develop one in the future. However, that risk is not a reason to do nothing. It's quite possible to gain the strength to do some pretty high-intensity activities. And, as I noted in my last post, now it seems that lifting weight may be the best thing you can do.
Julie

