[en] Introduction: The postural control is a crucial factor to maintain balance while standing and walking. The shoe has a role to play in the postural stability. Objectives: The main purpose of this research was to determine the stability of three different sanitary shoes on nurses with eyes open and closed with respect to barefoot condition. In addition, the secondary aim was to determine the reliability of stability measurements under these different conditions. Methods: A crossover quasi-experimental study (NCT03764332) was performed. Twenty-six nurses who wore different sanitary shoes (Eva Plus Ultralight®, Gym Step® and Milan-SCL Liso®) were evaluated with respect to barefoot condition for stability measures on the Podoprint® podobarometric and stabilometry tool and with eyes open and closed. Furthermore, the reliability of stability measurements was determined by the intraclass correlation coefficient (CCI) under these different conditions. Results: Between-groups comparisons of the static and stabilometry podobarometric data with eyes open showed statistically significant differences (p < 0.05). Milan-SCL Liso® sanitary shoes improved podobarometric data of forefoot force and distribution with respect to barefoot condition. Eva Plus Ultralight® and Gym Step®sanitary shoes increased the stroke length mean, stroke surface mean, and anterior speed mean as well as reduced y axis displacement mean with respect to barefoot condition. Similar findings were determined for measurements with eyes closed. CCIs ranged from poor to excellent reliability (CCI = 0.010–0.995). Conclusions: Sanitary shoes improved podobarometric and stabilometry stability with respect to barefoot condition.

[gl] Introdución: o control postural é un factor crucial para manter o equilibrio mentres está parado e camiñando. O calzado sanitario xoga un papel importante na estabilidade postural. Obxectivos: O principal obxectivo desta investigación foi determinar a estabilidade de tres modelos de calzado sanitario diferentes en enfermeiras cos ollos abertos e pechados con respecto ao estado dos pés descalzos. Ademais, o obxectivo secundario era determinar a fiabilidade das medicións de estabilidade en diferentes condicións. Material e métodos: realizouse un estudo cruzado case experimental (NCT03764332). A vinte e seis enfermeiras que levaban zapatos sanitarios diferentes (Eva Plus Ultralight ®, Gym Step ® e Milan-SCL Liso ®) foron avaliados con respecto ao estado dos pés descalzos para medir a estabilidade na ferramenta baropodométrica e de estabilometría da plataforma Podoprint ®, cos ollos abertos e pechados. Ademais, a fiabilidade das medicións de estabilidade foi determinada polo coeficiente de correlación intraclase (CCI) baixo estas diferentes condicións. Resultados: As comparacións entre grupos de datos baropodométricos estáticos e de estabilometría cos ollos abertos mostraron diferenzas estatísticamente significativas (p <0.05). Os zapatos sanitarios Milan-SCL Liso ® melloraron os datos baropodométricos da resistencia e distribución dos pés de punta con respecto á condición dos pés descalzos. Os zapatos sanitarios Eva Plus Ultralight ® e Gym Step ® aumentaron a lonxitude media do trazo, a superficie do trazo e a velocidade media anterior e reduciron o desprazamento medio do eixo Y respecto á condición de pés descalzos. Atopáronse resultados similares para medicións cos ollos pechados. As CCI variaron de pobre a excelente fiabilidade (CCI = 0,010-0,995). Conclusión: os zapatos sanitarios melloraron a estabilidade e estabilidade baropodrométrica con respecto á condición dos pés descalzos.