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Effects of downslope walking on Soleus H-reflexes and walking function in individuals with multiple sclerosis: A preliminary study.
NeuroRehabilitation ; 44(4): 587-597, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31256089
ABSTRACT

BACKGROUND:

Downslope walking (DSW) is an eccentric-based exercise intervention that promotes neuroplasticity of spinal reflex circuitry by inducing depression of Soleus Hoffman (H)-reflexes in young, neurologically unimpaired adults.

OBJECTIVE:

The objective of the study was to evaluate the effects of DSW on spinal excitability (SE) and walking function (WF) in people with multiple sclerosis (PwMS).

METHODS:

Our study comprised two experiments on 12 PwMS (11 women; 45.3±11.8 years). Experiment 1 evaluated acute effects of a single 20-minute session of treadmill walking at three different walking grades on SE, 0% or level walking (LW), - 7.5% DSW, and - 15% DSW. Experiment 2 evaluated the effects of 6 sessions of DSW, at - 7.5% DSW (with second session being - 15% DSW) on SE and WF.

RESULTS:

Experiment 1 showed significantly greater acute % H-reflex depression following - 15% DSW compared to LW (p = 0.02) and - 7.5% DSW (p = 0.05). Experiment 2 demonstrated significant improvements in WF. PwMS who showed greater acute H-reflex depression during the - 15% DSW session also demonstrated greater physical activity, long-distance WF, and the ability to have greater H-reflex depression after DSW training. Significant changes were not observed in regards to SE.

CONCLUSIONS:

Though significant changes were not observed in SE after DSW training, we observed an improvement in WF which merits further investigation of DSW in PwMS.
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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Assunto principal: Caminhada / Teste de Esforço / Reflexo H / Esclerose Múltipla Limite: Adulto / Idoso / Feminino / Humanos / Masculino / Meia-Idade / Jovem adulto Idioma: Inglês Revista: NeuroRehabilitation Assunto da revista: Neurologia / Reabilitação Ano de publicação: 2019 Tipo de documento: Artigo País de afiliação: Estados Unidos