Modeling of Muscle Activation from Electromyography Recordings in Patients with Cerebral Palsy
The present study estimated muscle activation from electromyographic (EMG) recordings in patients with cerebral palsy (CP) during cycling on an ergometer. This could be used as an input to the modeling of muscle force following the neuromusculoskeletal modeling technique which can help to understand...
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doaj-9e2636f45fdd40999582bf3848bfc2222020-11-24T22:57:26ZengMDPI AGApplied Sciences2076-34172018-11-01812234510.3390/app8122345app8122345Modeling of Muscle Activation from Electromyography Recordings in Patients with Cerebral PalsySusmita Roy0Ana Alves-Pinto1Renée Lampe2Research Unit of the Buhl-Strohmaier Foundation for Cerebral Palsy and Pediatric Neuroorthopaedics, Orthopedic Department, Klinikum rechts der Isar, Technical University of Munich, 81675 Munich, GermanyResearch Unit of the Buhl-Strohmaier Foundation for Cerebral Palsy and Pediatric Neuroorthopaedics, Orthopedic Department, Klinikum rechts der Isar, Technical University of Munich, 81675 Munich, GermanyResearch Unit of the Buhl-Strohmaier Foundation for Cerebral Palsy and Pediatric Neuroorthopaedics, Orthopedic Department, Klinikum rechts der Isar, Technical University of Munich, 81675 Munich, GermanyThe present study estimated muscle activation from electromyographic (EMG) recordings in patients with cerebral palsy (CP) during cycling on an ergometer. This could be used as an input to the modeling of muscle force following the neuromusculoskeletal modeling technique which can help to understand the alterations in neuromotor processes underlying disabilities in CP. EMG signals of lower extremity muscle activity from 14 adult patients with CP and 10 adult healthy participants were used here to derive muscle activation. With a self developed EMG system, signals from the following muscles were recorded: Musculus tibialis anterior, Musculus gastrocnemius, Musculus rectus femoris, and Musculus biceps femoris. Collected EMG signals were mathematically transformed into muscle activation following a parameter dependent and a nonlinear transformation. Muscle activation values from patients with CP were compared to equivalent reference values obtained from healthy controls. Muscle activation calculated at specific foot positions deviated clearly from reference values. The deviation was larger for patients with higher degree of spasticity. Observations underline the need of muscle force modeling during cycling for individualized cycling training for rehabilitation strategy.https://www.mdpi.com/2076-3417/8/12/2345rehabilitationcyclingergometerspasticitymuscle force |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Susmita Roy Ana Alves-Pinto Renée Lampe |
spellingShingle |
Susmita Roy Ana Alves-Pinto Renée Lampe Modeling of Muscle Activation from Electromyography Recordings in Patients with Cerebral Palsy Applied Sciences rehabilitation cycling ergometer spasticity muscle force |
author_facet |
Susmita Roy Ana Alves-Pinto Renée Lampe |
author_sort |
Susmita Roy |
title |
Modeling of Muscle Activation from Electromyography Recordings in Patients with Cerebral Palsy |
title_short |
Modeling of Muscle Activation from Electromyography Recordings in Patients with Cerebral Palsy |
title_full |
Modeling of Muscle Activation from Electromyography Recordings in Patients with Cerebral Palsy |
title_fullStr |
Modeling of Muscle Activation from Electromyography Recordings in Patients with Cerebral Palsy |
title_full_unstemmed |
Modeling of Muscle Activation from Electromyography Recordings in Patients with Cerebral Palsy |
title_sort |
modeling of muscle activation from electromyography recordings in patients with cerebral palsy |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2018-11-01 |
description |
The present study estimated muscle activation from electromyographic (EMG) recordings in patients with cerebral palsy (CP) during cycling on an ergometer. This could be used as an input to the modeling of muscle force following the neuromusculoskeletal modeling technique which can help to understand the alterations in neuromotor processes underlying disabilities in CP. EMG signals of lower extremity muscle activity from 14 adult patients with CP and 10 adult healthy participants were used here to derive muscle activation. With a self developed EMG system, signals from the following muscles were recorded: Musculus tibialis anterior, Musculus gastrocnemius, Musculus rectus femoris, and Musculus biceps femoris. Collected EMG signals were mathematically transformed into muscle activation following a parameter dependent and a nonlinear transformation. Muscle activation values from patients with CP were compared to equivalent reference values obtained from healthy controls. Muscle activation calculated at specific foot positions deviated clearly from reference values. The deviation was larger for patients with higher degree of spasticity. Observations underline the need of muscle force modeling during cycling for individualized cycling training for rehabilitation strategy. |
topic |
rehabilitation cycling ergometer spasticity muscle force |
url |
https://www.mdpi.com/2076-3417/8/12/2345 |
work_keys_str_mv |
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