Kinematic evaluation of patients with chronic obstructive pulmonary disease during the 6-min walk test |
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| Affiliation: | 1. Rehabilitation Sciences Post-Graduation Program, Augusto Motta University Centre (UNISUAM), Rio de Janeiro, Brazil;2. Department of Medical Imaging, Allergology and Physiotherapy, Faculty of Dental Medicine, Medical University of Plovdiv, Bulgaria;3. Department of Kinesiotherapy, Faculty of Public Health, Medical University of Sofia, Bulgaria;4. Department of Physical Therapy, School of Medicine, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil;5. Postgraduate Program in Medical Sciences, School of Medical Sciences, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil;1. Federal University of Triangulo Mineiro, Uberaba, MG, Brazil;2. Department of Applied Physiotherapy, Federal University of Triangulo Mineiro, Uberaba, MG, Brazil;1. Laboratório de Pesquisa do Exercício/ Universidade Federal do Rio Grande do Sul(UFRGS), Porto Alegre, RS, Brazil;1. Hasan Kalyoncu University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Gaziantep, Turkey;2. Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Ankara, Turkey |
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| Abstract: | BackgroundA better understanding of gait kinematics during the 6-min walk test (6MWT) may facilitate the development of rehabilitation strategies for patients with chronic obstructive pulmonary disease (COPD).AimTo evaluate gait kinematics during the 6MWT in patients with COPD.MethodThirty-six patients with COPD and 19 healthy controls underwent a full-body kinematic analysis during the 6MWT. Data were collected using a system with four infrared cameras to capture the movement of a spherical marker covered with retroreflective tape attached to a helmet worn during the test.ResultsThe walking distances measured by the assessor and by kinematics analysis were lower in the group of patients (P = 0.036 and P = 0.013, respectively). Moreover, the walking distances measured by kinematics analysis were greater than those measured by the assessor for both groups (P < 0.001). In the kinematics analysis of the complete test, the mean and maximum speeds were higher for the controls than for the patients (P = 0.007 and P = 0.044, respectively). In the half-turn analysis, acceleration, speed, and deceleration peaks (maximal absolute values) were lower for the patients than for the controls (P = 0.002, P = 0.012 and P = 0.006, respectively).ConclusionsPatients with COPD show worse functional capacity due to lower gait speed and acceleration-deceleration peaks after turnings as compared to healthy individuals during the 6MWT. Assessors can accurately predict the 6MWD measured by kinematics, though they underestimate this distance. |
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| Keywords: | Chronic obstructive pulmonary disease Gait 6-min walk test Kinematic analysis |
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