Erratum to: Neurol Sci DOI 10.1007/s10072-015-2433-5

Unfortunately, the Fig. 3 was published incorrectly in the original publication. The correct figure is given below:

Fig. 3
figure 3

The effect of 4 weeks GPR program on the RoM of the thigh (T), knee (K), and ankle (A) joints on the sagittal plane in PD vs. control group at different times. The RoMs for each joint were normalized for the 100 % of the gait cycle. Δs value represents the difference between two consecutive peaks in the gait cycle. Details in the text. *Statistical significance as compared to baseline evaluation (pre-test) p < 0.005