Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/1239
Título: Influence of an unstable shoe on compensatory postural adjustments: an experimental evaluation
Autor: Sousa, Andreia S. P.
Macedo, Rui
Santos, Rubim
Tavares, João Manuel
Palavras-chave: Postural control strategies
Electromyography
Center of pressure
Masai barefoot technology
Data: 2010
Resumo: This study attempted to evaluate the influence of using an unstable shoe in muscle re-cruitment strategies and center of pressure (CoP) displacement after the application of an external perturba-tion. Fourteen healthy female subjects participated in this study. The electromyographic activity of medial ga-strocnemius, tibialis anterior, rectus femoris, biceps femoris, rectus abdominis and erector spinae muscles and the kinetic values to calculate the CoP were collected and analyzed after the application of an external pertur-bation with the subject in standing position, with no shoes and using unstable footwear. The results showed increased in medial gastrocnemius activity during the first compensatory postural adjustments and late com-pensatory postural adjustments when using an unstable shoe. There were no differences in standard deviation and maximum peak of anteroposterior displacement of CoP between measurements. From the experimental findings, one can conclude that the use of an unstable shoe leads to an increase in gastrocnemius activity with no increase in CoP displacement following an unexpected external perturbation.
Peer review: yes
URI: http://hdl.handle.net/10400.22/1239
ISBN: 978-0-415-66822-4
978-0-203-81659-2
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