Paola Errera Magnani1, Nathalia Fernanda Grecco Zanellato2, Maiara Baena Genovez2, Isabella Camargo Alvarenga2, Flávia Roberta Faganello-Navega3, Daniela Cristina Carvalho de Abreu4. 1. Postgraduate Program in Rehabilitation and Functional Performance, Department of Health Sciences, Ribeirão Preto School of Medicine, University of São Paulo (USP), Ribeirão Preto, SP, Brazil. 2. Physiotherapy Course, Department of Health Sciences, School of Medicine, University of São Paulo (USP), Ribeirão Preto, SP, Brazil. 3. Department of Physical Therapy and Occupational Therapy, School of Philosophy and Science, São Paulo State University (UNESP), Marília, SP, Brazil. 4. Department of Health Sciences, Rehabilitation and Functional Performance Program, Ribeirão Preto Medical School, University of São Paulo (USP), Avenida Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil. dabreu@fmrp.usp.br.
Abstract
BACKGROUND: During the walk along the streets, older adults are exposed to various visual stimuli that can affect their gait in a harmful or beneficial way. AIMS: To evaluate gait strategies during different situations with and without visual stimulation in older adults to identify the influence of the visual stimulus on these gait parameters. METHODS: A total of 200 older adults were divided into 4 groups according to age range between 60 and 102 years. Gait was evaluated in the following situations: (1) habitual gait (HG); (2) gait with the visual stimulation (GVS) provided by a pedestrian traffic light, and (3) GVS associated with a cognitive task (GVS-C). The GAITRite Platinum equipment was used to assess gait variables. RESULTS: Comparison of GVS and HG revealed that the visual stimulus influences the gait parameters and promotes a gait speed increase. However, to increase their gait speed, older adults aged 60-89 years used strategies of increased step length and cadence, whereas subjects older than 90 years used only strategies of increased cadence. In addition, comparison of GVS and GVS-C revealed a decrease in gait speed in all age ranges when the cognitive task was added, although this reduction was more pronounced in subjects older than 70 years. CONCLUSION: Visual stimulus influences the gait parameters in older adults and the strategy used is different depending on their age, a fact that shows that traffic light may be an interesting strategy to improve the gait performance during physical therapy.
BACKGROUND: During the walk along the streets, older adults are exposed to various visual stimuli that can affect their gait in a harmful or beneficial way. AIMS: To evaluate gait strategies during different situations with and without visual stimulation in older adults to identify the influence of the visual stimulus on these gait parameters. METHODS: A total of 200 older adults were divided into 4 groups according to age range between 60 and 102 years. Gait was evaluated in the following situations: (1) habitual gait (HG); (2) gait with the visual stimulation (GVS) provided by a pedestrian traffic light, and (3) GVS associated with a cognitive task (GVS-C). The GAITRite Platinum equipment was used to assess gait variables. RESULTS: Comparison of GVS and HG revealed that the visual stimulus influences the gait parameters and promotes a gait speed increase. However, to increase their gait speed, older adults aged 60-89 years used strategies of increased step length and cadence, whereas subjects older than 90 years used only strategies of increased cadence. In addition, comparison of GVS and GVS-C revealed a decrease in gait speed in all age ranges when the cognitive task was added, although this reduction was more pronounced in subjects older than 70 years. CONCLUSION: Visual stimulus influences the gait parameters in older adults and the strategy used is different depending on their age, a fact that shows that traffic light may be an interesting strategy to improve the gait performance during physical therapy.