[Purpose] Primary lymphedema occurs because of genetic predisposition and developmental
insufficiency of the lymphatic system. Matrix Rhythm Therapy was developed as an external
and dynamic method that supplies rhythmic mobilization of the fluids in tissues. The aim
of the study was to investigate the effects of Matrix Rhythm Therapy in primary
lymphedema. [Subject and Methods] A 36-year-old female with left lower limb lymphedema was
evaluated. Leg circumference was measured before and at the end of treatment, and 1 and 3
months later. The circumferences were converted to volumetric values. Twenty sessions of
Matrix Rhythm Therapy (5 days/week) were applied to the affected leg, spine, and abdominal
regions. Patient satisfaction was assessed with the Global Rating of Change scale.
[Results] Volumetric values were 1,573.28 ml before treatment, 1,573.13 ml at the end of
treatment, 1,516.70 ml 1 month later, and 1,441.61 ml 3 months later. At the end of
treatment, the volumetric reduction was not significant; however, when compared with
baseline, measurements at 1 and 3 months decreased by 3.59% and 8.36%, respectively. The
Global Rating of Change score was 2. [Conclusion] Matrix Rhythm Therapy could not reduce
lymphedema when used alone, but long-term treatment may show positive effects.