title: Additional sensory input improves the strategy of stepping over obstacle in individuals with knee osteoarthritis.
abstract: BACKGROUND
  The use of bandages improves quasi-static posture control in individuals with knee osteoarthritis, but it is unknown whether this increased sensory input influences postural control in dynamic tasks.
  
  
  OBJECTIVE
  Assess the effect of bandage use on motor performance and reported pain in individuals with knee osteoarthritis during obstacle crossing.
  
  
  METHODS
  Twenty-four individuals with knee osteoarthritis were enrolled. A force plate was used to measure the vertical and anterior-posterior components of the ground reaction force during obstacle crossing, for the trailing and leading legs, under conditions with and without the use of a bandage. Pain was assessed using the visual analogue scale.
  
  
  RESULTS
  With use of a bandage, the propulsive time, time to active peak, propulsive peak, passive peak, and active impulse were significantly reduced in the trailing leg, and the braking peak was significantly increased in the leading leg. The pain parameters did not exhibit any variation.
  
  
  CONCLUSIONS
  These results suggest that the use of a bandage allowed for a more rapid movement, better estimates of the force applied against the ground in the propulsive stage, and a reduction in the overload on the locomotor system in the loading response stage.
authors.affiliation: Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
authors.forename: Kátia S
authors.initials: KS
authors.lastname: Pegoretti
authors.affiliation: School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
authors.forename: Renato
authors.initials: R
authors.lastname: Moraes
authors.affiliation: Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
authors.forename: Cátia L
authors.initials: CL
authors.lastname: Masullo
authors.affiliation: Department of Biomechanics, Medicine and Rehabilitation of the Locomotor Apparatus, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
authors.forename: Francisco A
authors.initials: FA
authors.lastname: Chagas-Neto
authors.affiliation: Department of Biomechanics, Medicine and Rehabilitation of the Locomotor Apparatus, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
authors.forename: Aline
authors.initials: A
authors.lastname: Miranda
authors.affiliation: Department of Biomechanics, Medicine and Rehabilitation of the Locomotor Apparatus, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
authors.forename: Maurício
authors.initials: M
authors.lastname: Kfuri
authors.affiliation: Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
authors.forename: Débora
authors.initials: D
authors.lastname: Bevilaqua-Grossi
mesh_terms: D000368:Aged; D005260:Female; D005684:Gait / Q000502:physiology*; D006801:Humans; D007866:Leg / Q000502:physiology; D008297:Male; D008875:Middle Aged; D009068:Movement / Q000502:physiology*; D020370:Osteoarthritis, Knee / Q000503:physiopathology*; D010146:Pain / Q000503:physiopathology*; D010147:Pain Measurement; D011597:Psychomotor Performance / Q000502:physiology*
keywords: Knee osteoarthritis; bandage; ground reaction force; obstacle crossing; tactile sensory information