Cic edizioni internazionali
Functional Neurology

The required coefficient of friction in Parkinson’s disease: people with freezing of gait

Original Article, 137 - 142
doi: 10.11138/FNeur/2018.33.3.137
Tag this article
Full text PDF
The required coefficient of friction (RCOF) is frequently reported in the literature as an indicator of slip propensity, a consequence of the collisional aspect of legged locomotion. Little is known about the
RCOF in pathological gait. Therefore, this study aimed to quantify the RCOF in subjects with Parkinson’s disease (PD) and freezing of gait (FOG) during the OFF-pharma phase, and to investigate the interplay between RCOF parameters and ankle kinematic and kinetic gait variables. Fourteen subjects with PD and 14 healthy age-matched subjects were instructed to walk barefoot at self-selected speed over a force platform. The RCOF curve was obtained as the ratio between the tangential and vertical ground reaction forces. Then, the following discrete variables were identified: P1COF (the peak at the loading response phase), V1COF (the valley at midstance phase) and P2COF (the peak at push-off phase). Stepwise multiple regressions were applied to observe the influence of the gait speed and ankle kinematic and kinetic gait variables on RCOF variables.
In subjects with PD and FOG the gait speed is a predictor of the RCOF in the loading response phase; plantarflexion and the plantarflexion moment are strong predictors of the RCOF in midstance; finally, push-off power is a predictor of RCOF increasing in the push-off phase. These results characterized the biomechanical strategies adopted by subjects with PD and FOG during gait in order to avoid falls.

Vol. XXXIII (No. 4) 2018 October/December

  1. Music and neurorehabilitation: Yes, we can!
    Raglio A.
    doi: 10.11138/FNeur/2018.33.4.173
  2. Clinical and neuroimaging spectrum of hyperglycemia-associated chorea-ballism: systematic review and exploratory analysis of case reports
    Gómez-Ochoa S.A., Espín-Chico B.B., Pinilla-Monsalve G.D., Kaas B.M., Téllez-Mosquera L.E.
    doi: 10.11138/FNeur/2018.33.4.175
  3. Recovery of circadian melatonin rhythm after a melatonin holiday in daytime haemodialysis patients on long-term exogenous melatonin
    Sparla S., Koch B., Bosma R., Nagtegaal E.
    doi: 10.11138/FNeur/2018.33.4.188
  4. Multiple sclerosis and non-dystrophic myotonias: do they share a common pathophysiology?
    Portaro S., Naro A., Russo M., Bramanti P., Lauria P., D'Aleo G., La Rosa G., Bramanti A., Calabrò R.S.
    doi: 10.11138/FNeur/2018.33.4.194
  5. From paper to informatics: the Post Soft Care-App, an easy-to-use and fast tool to help therapists identify unmet needs in stroke patients
    De Bartolo D., Morone G., Lupo A., Aloise F., Baricich A., Di Francesco D., Calderone C., Cisari C., Verdecchia G., Sandrini G., Pistarini C., Antonucci G., Smania N., Paolucci S., Iosa M.
    doi: 10.11138/FNeur/2018.33.4.200
  6. Automated mechanical peripheral stimulation and postural control in subjects with Parkinson’s disease and freezing of gait: a randomized controlled trial
    Prusch J.S., Kleiner A.F.R., Salazar A.P., Pinto C., Marchese R.R., Galli M., Pagnussat A.S.
    doi: 10.11138/FNeur/2018.33.4.206
  7. Is bupropion useful in the treatment of post-stroke thalamic apathy? A case report and considerations
    Aragona B., De Luca R., Piccolo A., Le Cause M., Destro M., Casella C., Filoni S., Calabrò R.S.
    doi: 10.11138/FNeur/2018.33.4.213
  8. TIA patients with higher ABCD3-I scores are prone to a higher incidence of intracranial stenosis, unstable carotid plaques and multiple-vessel involvement
    Yu Q., Miao W., Han J.
    doi: 10.11138/FNeur/2018.33.4.217
  9. Is there a correlation between urological and cardiovascular dysfunction in Parkinson’s disease?
    Brusa L., Rocchi C., Ponzo V., Stanzione P., Finazzi E., Attanasio A.
    doi: 10.11138/FNeur/2018.33.4.225
  10. Cross-cultural adaptation and validation in the Italian population of the wolf motor function test in patients with stroke
    Berardi A., Dhrami L., Tofani M., Valente D., Sansoni J., Galeoto G.
    doi: 10.11138/FNeur/2018.33.4.229
  11. The dawn of algometry: Paolo Mantegazza’s research on pain
    Cani V.
    doi: 10.11138/FNeur/2018.33.4.254
Last Viewed articles: la lista degli ultimi x visitati.
  1. The required coefficient of friction in Parkinson’s disease: people with freezing of gait
    Rozin Kleiner A.F., Cubillos D.M., Pinto C., Salazar A.P., Marchese R.R., Barros R.M.L., Galli M., Pagnussat A.S.
    doi: 10.11138/FNeur/2018.33.3.137