title: Estimating pushrim temporal and kinetic measures using an instrumented treadmill during wheelchair propulsion: A concurrent validity study.
abstract: Using ground reaction forces recorded while propelling a manual wheelchair on an instrumented treadmill may represent a valuable alternative to using an instrumented pushrim to calculate temporal and kinetic parameters during propulsion. Sixteen manual wheelchair users propelled their wheelchair equipped with instrumented pushrims (i.e., SMARTWheel) on an instrumented dual-belt treadmill set a 1m/s during a 1-minute period. Spatio-temporal (i.e., duration of the push and recovery phase) and kinetic measures (i.e. propulsive moments) were calculated for 20 consecutive strokes for each participant. Strong associations were confirmed between the treadmill and the instrumented pushrim for the mean duration of the push phase (r=0.98) and of the recovery phase (r=0.99). Good agreement between these two measurement instruments was also confirmed with mean differences of only 0.028s for the push phase and 0.012s for the recovery phase. Strong associations were confirmed between the instrumented wheelchair pushrim and treadmill for mean (r=0.97) and peak (r=0.96) propulsive moments. Good agreement between these two measurement instruments was also confirmed with mean differences of 0.50Nm (mean moment) and 0.71Nm (peak moment). The use of a dual-belt instrumented treadmill represents an alternative to characterizing temporal parameters and propulsive moments during manual wheelchair propulsion.
authors.affiliation: École de Réadaptation, Université de Montréal, Canada; Laboratoire de Pathokinésiologie, Centre de recherche interdisciplinaire en réadaptation du grand Montréal-Site Institut de réadaptation Gingras-Lindsay-de-Montréal, Canada. Electronic address: dany.gagnon.2@umontreal.ca.
authors.forename: Dany H
authors.initials: DH
authors.lastname: Gagnon
authors.affiliation: École de Réadaptation, Université de Montréal, Canada; Laboratoire de Pathokinésiologie, Centre de recherche interdisciplinaire en réadaptation du grand Montréal-Site Institut de réadaptation Gingras-Lindsay-de-Montréal, Canada; École des Hautes Études d'Ingénieurs (HEI), Lille, France.
authors.forename: Camille
authors.initials: C
authors.lastname: Jouval
authors.affiliation: Laboratoire de Pathokinésiologie, Centre de recherche interdisciplinaire en réadaptation du grand Montréal-Site Institut de réadaptation Gingras-Lindsay-de-Montréal, Canada; Département des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal, Canada.
authors.forename: Félix
authors.initials: F
authors.lastname: Chénier
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007700:Kinetics; D008297:Male; D008875:Middle Aged; D009068:Movement; D014910:Wheelchairs; D055815:Young Adult
keywords: Biomechanics; Rehabilitation; Task performance and analysis; Upper extremity; Wheelchair