Bibliografia

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6. Judge JO, Davis RB 3 ^rd , Ounpuu S. Step length reductions in advanced age: the role of ankle and hip kinetics. J Gerontol A Biol Sci Med Sci 1996; 51(6): M303-12.

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8. Blin O. Ferrandez AM, Serratrice G. Quantitative analysis of gait in Parkinson patients: increased variability of stride length. J Neurol Sci 1990; 98(1): 91-7.

9. Morris ME, Iansek R, Matyas TA, et al. The pathogenesis of gait hyperkinesias in Parkinson’s disease. Brain 1994; 117: 1169-81.

10. Morris ME, McGinley J, Huxham F et al. Constraints on the kinetic, kinematics and spatiotemporal parameters of gait in Parkinson’s disease. Hum Movement Sci 1999; 18: 461-83.

11. Nieuwboer A, Dom R, De Weerdt W et al. Abnormalities of the spatiotemporal characteristics of gait at the onset of freezing in Parkinson’s disease. Movement Disord 2001; 16(6): 1066-75.

12. Albani G, Sandrini G, Künig G et al. Differences in the EMG pattern of leg muscle activation during locomotion in Parkinson's disease. Funct Neurol 2003;18(3): 165-70.