title: The effects of walking speed on multisegment foot kinematics in adults.
abstract: Multisegment foot models provide researchers more-detailed information regarding foot mechanics compared with single rigid body foot models. Previous work has shown that walking speed significantly affects sagittal plane ankle motion. It is important to distinguish changes in intersegment foot mechanics following treatment that are due to clinical intervention versus those due to walking speed alone. Foot and ankle kinematics were collected on 24 adults walking at 5 speeds. Significant differences were seen at the ankle using a single rigid body foot model, as well as at the hindfoot and forefoot using a multisegment foot model, with all motions exhibiting a shift toward plantar flexion and decreased stance time with increasing speed. When evaluating foot mechanics using a multisegment foot model across groups or conducting intrasubject comparison over time/treatments, it is imperative that walking speed be accounted for or controlled.
authors.affiliation: Movement Science Lab, Texas Scottish Rite Hospital for Children, Dallas, TX, USA.
authors.forename: Kirsten
authors.initials: K
authors.lastname: Tulchin
authors.forename: Michael
authors.initials: M
authors.lastname: Orendurff
authors.forename: Stephen
authors.initials: S
authors.lastname: Adolfsen
authors.forename: Lori
authors.initials: L
authors.lastname: Karol
mesh_terms: D000328:Adult; D003198:Computer Simulation; D005260:Female; D005528:Foot / Q000502:physiology*; D006801:Humans; D007596:Joints / Q000502:physiology*; D008297:Male; D008954:Models, Biological; D009068:Movement / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology*; D016059:Range of Motion, Articular / Q000502:physiology*; D016138:Walking / Q000502:physiology*