title: Spatiotemporal and Kinematic Parameters Relating to Oriented Gait and Turn Performance in Patients with Chronic Stroke.
abstract: BACKGROUND
  The timed up and go test (TUG) is a functional test which is increasingly used to evaluate patients with stroke. The outcome measured is usually global TUG performance-time. Assessment of spatiotemporal and kinematic parameters during the Oriented gait and Turn sub-tasks of the TUG would provide a better understanding of the mechanisms underlying patients' performance and therefore may help to guide rehabilitation. The aim of this study was thus to determine the spatiotemporal and kinematic parameters which were most related to the walking and turning sub-tasks of TUG performance in stroke patients.
  
  
  METHODS
  29 stroke patients carried out the TUG test which was recorded using an optoelectronic system in two conditions: spontaneous and standardized condition (standardized foot position and instructed to turn towards the paretic side). They also underwent a clinical assessment. Stepwise regression was used to determine the parameters most related to Oriented gait and Turn sub-tasks. Relationships between explanatory parameters of Oriented gait and Turn performance and clinical scales were evaluated using Spearman correlations.
  
  
  RESULTS
  Step length and cadence explained 82% to 95% of the variance for the walking sub-tasks in both conditions. Percentage single support phase and contralateral swing phase (depending on the condition) respectively explained 27% and 56% of the variance during the turning sub-task in the spontaneous and standardized conditions.
  
  
  CONCLUSIONS
  Step length, cadence, percentage of paretic single support phase and non-paretic swing phase, as well as dynamic stability were the main parameters related to TUG performance and they should be targeted in rehabilitation.
authors.affiliation: Inserm Unit 1179, Team 3: Technologies and Innovative Therapies Applied to Neuromuscular diseases, UVSQ, CIC 805, APHP Service de physiologie et d'exploration fonctionnelle, Hôpital Raymond Poincaré, 92380, Garches, France.
authors.forename: Céline
authors.initials: C
authors.lastname: Bonnyaud
authors.affiliation: Inserm Unit 1179, Team 3: Technologies and Innovative Therapies Applied to Neuromuscular diseases, UVSQ, CIC 805, APHP Service de physiologie et d'exploration fonctionnelle, Hôpital Raymond Poincaré, 92380, Garches, France.
authors.forename: Didier
authors.initials: D
authors.lastname: Pradon
authors.affiliation: Univ. Grenoble Alpes Laboratoire AGIM, La Tronche, France; Institut Universitaire de France, Paris, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Vuillerme
authors.affiliation: Inserm Unit 1179, Team 3: Technologies and Innovative Therapies Applied to Neuromuscular diseases, UVSQ, CIC 805, APHP Service de Médecine Physique et Réadaptation, Hôpital R. Poincaré, AP-HP, Garches, France.
authors.forename: Djamel
authors.initials: D
authors.lastname: Bensmail
authors.affiliation: Inserm Unit 1179, Team 3: Technologies and Innovative Therapies Applied to Neuromuscular diseases, UVSQ, CIC 805, APHP Service de physiologie et d'exploration fonctionnelle, Hôpital Raymond Poincaré, 92380, Garches, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Roche
mesh_terms: D000328:Adult; D000368:Aged; D002908:Chronic Disease; D005260:Female; D005684:Gait; D006801:Humans; D008297:Male; D008875:Middle Aged; D011597:Psychomotor Performance; D020521:Stroke / Q000175:diagnosis* / Q000503:physiopathology*