Neurological Sciences

, Volume 33, Issue 4, pp 779–784

Energy cost of spontaneous walking in Parkinson’s disease patients

Authors

    • Department of Sport, Nutrition and Health SciencesUniversity of Milan
  • Arsenio Veicsteinas
    • Department of Sport, Nutrition and Health SciencesUniversity of Milan
    • Centre of Sports Medicine Don C. Gnocchi Foundation
  • Susanna Rampichini
    • Department of Sport, Nutrition and Health SciencesUniversity of Milan
  • Emiliano Cè
    • Department of Sport, Nutrition and Health SciencesUniversity of Milan
    • Centre of Sports Medicine Don C. Gnocchi Foundation
  • Raffaello Nemni
    • Centre of Neurology Don C. Gnocchi Foundation
  • Giulio Riboldazzi
    • Parkinson’s Disease and Movement Disorders’ CentreOspedale di Circolo
  • Giampiero Merati
    • Department of Sport, Nutrition and Health SciencesUniversity of Milan
    • Centre of Sports Medicine Don C. Gnocchi Foundation
Original Article

DOI: 10.1007/s10072-011-0827-6

Cite this article as:
Maggioni, M.A., Veicsteinas, A., Rampichini, S. et al. Neurol Sci (2012) 33: 779. doi:10.1007/s10072-011-0827-6

Abstract

In healthy subjects, comfortable walking minimizes the energy cost (E c) of locomotion. In Parkinson’s disease (PD) patients walking is slower than in healthy subjects: this may increase E c. Our aims were to analyze gait and E c in PD patients during walking, particularly at self-selected speed, and the possible pathological, mechanical, and cardiorespiratory limitations. Fourteen mild-to-moderate PD and 14 control subjects were enrolled. Subjects underwent 5-min walking tests at two speeds: self-selected and as-fast-as-possible speeds. Cardiopulmonary and gait parameters (heart rate, ventilation, gas exchanges, step count) were recorded. Velocity was reduced in PD compared to control subjects at both speeds (P < 0.05), and PD patients had shorter strides (P < 0.05) at both speeds and reduced cadence (P = 0.01) at fastest speed. No significant difference was found in E c at self-selected (0.12 ± 0.04 versus 0.11 ± 0.02 mLO2 kg−1 m−1 in PD and control subjects, respectively) and maximal (0.14 ± 0.03 versus 0.15 ± 0.02  mLO2 kg−1 m−1 in PD and control subjects, respectively) speed. However, the E c increment from self-selected to fastest velocity was significantly lower (P = 0.02) in PD patients. PD patients failed to walk at a self-selected speed, which minimizes the E c. This could be mainly due to the inability to develop a wider stride. Cardiorespiratory adaptation was not affected, except for the possible reduced cardiac adaptation observed in some (28%) cases. Presumably, rehabilitation procedures that improve flexibility and step length may help maintain walking ability.

Keywords

Parkinson’s disease Gait Spontaneous walking Oxygen consumption Efficiency Clinical scores

Copyright information

© Springer-Verlag 2011