Kinetic parameters during land and water walking performed by individuals with Down Syndrome

•Water walking revealed low Fz values in individuals with DS regardless of the speed.•The increasing speed in water resulted in similar 1st and 2nd Fz peak values•Water walking presents safe vertical loads on lower limbs in individuals with DS Down Syndrome (DS) is a genetic condition presenting del...

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Bibliographic Details
Published in:Gait & posture 2020-06, Vol.79, p.60-64
Main Authors: Nunes, Gabriela Neves, Pinto, Stephanie Santana, Krüger, Gabriele Randuz, Peyré-Tartaruga, Leonardo Alexandre, Andrade, Luana Siqueira, Mendes, Graciele Ferreira, Krüger, Vitor de Lima, Pinheiro, Rochele Barboza, Marques, Alexandre Carriconde, Alberton, Cristine Lima
Format: Article
Language:English
Subjects:
Adult
aquatic exercise
Biomechanical Phenomena
Down Syndrome
Female
Gait
ground reaction force
Humans
immersion
impact
Male
trisomy 21
Walking
Water
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Summary:•Water walking revealed low Fz values in individuals with DS regardless of the speed.•The increasing speed in water resulted in similar 1st and 2nd Fz peak values•Water walking presents safe vertical loads on lower limbs in individuals with DS Down Syndrome (DS) is a genetic condition presenting delay in acquisition of main motor milestones, such as walking. Although studies have been investigating the biomechanical parameters during land walking performed by individual with DS, the literature is scarce regarding kinetic parameters analysis in this population, specially during water walking. This study sought to assess the vertical ground reaction force (Fz) of walking performed in water and on land at different speeds by individuals with DS. Fourteen adults with DS (age: 27.9 ± 7.9 years; body mass: 58.4 ± 12.9 kg; height: 1.4 ± 0.1 m, body mass index: 29.2 ± 5.4 kg.m-2) completed two sessions of data collection, one on land and another in aquatic environment. The protocol consisted of walking performed at three self-selected speeds (slow, comfortable and fast) in randomized order. The Fz was assessed with a waterproof force plate in each condition. Two-way repeated-measures ANOVA (environment and speed), with Bonferroni’s post hoc tests, were used for analysis. A significance level was set as α = 0.05. Significant differences were observed between environments (p 
ISSN:0966-6362
1879-2219
DOI:10.1016/j.gaitpost.2020.04.017