The contralateral upper limb was used as the control
so that any physiological change in arm composition due
to exercise would happen equally on both limbs. This
method is similar to previous studies [20,22]. The outcome
measures we used did not give accurate information
regarding changes at the tissue level, but regular
exercises cause hypertrophy of muscles and adipose tissue
loss. Not much change was seen in arm circumference
clinically, so any effect of exercise on lymphedema
is unknown to us; other tissue changes may have
occurred that masked any positive change regarding
accumulation of lymphatic fluid.