Fig. 5.

Correlations with PUL score. Correlations of DMD patients between total PUL score and (a) maximal muscle torque sum score; b maximal sEMG amplitude (MVIC) sum score; c mean inverse z-score of echogenicity (inverse z-scores were used so that lower scores indicate worse UE function); d mean z-score of muscle thickness; e maximal passive joint angle sum score; f maximal active joint angle sum score