Interleaved neuromuscular electrical stimulation after spinal cord injury.
Muscle Nerve
; 56(5): 989-993, 2017 Nov.
Article
em En
| MEDLINE
| ID: mdl-28245521
ABSTRACT
INTRODUCTION:
Neuromuscular electrical stimulation (NMES) over a muscle belly (mNMES) recruits superficial motor units (MUs) preferentially, whereas NMES over a nerve trunk (nNMES) recruits MUs evenly throughout the muscle. We performed tests to determine whether "interleaving" pulses between the mNMES and nNMES sites (iNMES) reduces the fatigability of contractions for people experiencing paralysis because of chronic spinal cord injury.METHODS:
Plantar flexion torque and soleus electromyography (M-waves) were recorded from 8 participants. A fatigue protocol (75 contractions; 2 s on/2 s off for 5 min) was delivered by iNMES. The results were compared with previously published data collected with mNMES and nNMES in the same 8 participants.RESULTS:
Torque declined â¼40% more during mNMES than during nNMES or iNMES. M-waves declined during mNMES but not during nNMES or iNMES.DISCUSSION:
To reduce fatigability of electrically evoked contractions of paralyzed plantar flexors, iNMES is equivalent to nNMES, and both are superior to mNMES. Muscle Nerve 56 989-993, 2017.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Traumatismos da Medula Espinal
/
Estimulação Elétrica
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Junção Neuromuscular
Tipo de estudo:
Etiology_studies
Limite:
Adult
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Muscle Nerve
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Canadá