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Characterization of Muscle Activity During a Surface EMG-controlled Rehabilitation Game (CONTRACTIV-1S)

17 septembre 2026 mis à jour par: Rennes University Hospital

The aim of this pilot study is to evaluate muscular activity during a single session of surface electromyography controlled exergame (muscle activation, number of contraction…) in cerebral palsy kids, hemiparetic adults and healthy controls.

Secondary aims are to assess different game mode (one-player, coactive two-player or competitive two-player and different gameplay (a rhythm and a platform gameplay) on muscle activation, number of contraction and on participant's experiences. Another aim is to assess enjoyment, motivation, flow and usability in hemiparetics adults.

Aperçu de l'étude

Description détaillée

During the game session, participants will be paired in advance of the visit (an adult participant with hemiparesis paired with another adult participant with hemiparesis, or a healthy volunteer and a child with cerebral palsy paired with another child with a cerebral palsy) to allow for testing of different conditions for the electromyography-controlled rehabilitation game. The estimated duration for each participant is 1 hour and 30 minutes, including a 30-minute game session.

Participants will play the rehabilitation game under different modalities : individually, in pairs in a co-active mode, or in a competitive mode.

In individual mode, they play two different games a rythm game (following the musical tempo by alternating agonist/antagonist contractions) and a target game (the participant controls a rocket that must hit targets based on the intensity of muscle contractions and the muscle being activated....).

The game modalities will be presented in a randomized order.

Type d'étude

Interventionnel

Inscription (Estimé)

50

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Lieux d'étude

      • Rennes, France
        • CHU de RENNES
        • Contact:
        • Chercheur principal:
          • Sophie HAMEAU

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

7 ans à 85 ans (Enfant, Adulte, Adulte plus âgé)

Accepte les volontaires sains

Oui

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria for children with cerebral palsy:

  • Participants with cerebral palsy who are able to walk, GMFCS stages I through III, hemiplegic, diplegic, or quadriplegic
  • Aged 7 to 17 years
  • With palpable contractions of the target muscles (triceps surae and tibialis anterior) (≥ 1 on the Medical Research Council [MRC] scale)
  • Having received verbal and written information about the protocol, having agreed to participate in this study, and having signed a consent form if the participant is 15 years of age or older
  • Signed consent for participation from the participant's legal guardians
  • Enrolled, either personally or through their parents, in a social security program

Inclusion Criteria for adults with hemiparesis

  • Stroke in the subacute or chronic phase
  • Aged 18 to 85 years
  • With palpable contractions of the target muscles (triceps surae and tibialis anterior) (≥ 1 on the Medical Research Council [MRC] scale)
  • Having received verbal and written information about the protocol and having signed a consent form to participate in this study
  • Enrolled in a social security program

Inclusion Criteria for Healthy subjects matched for age to the group of participants with hemiparesis

  • Aged 18 to 85
  • No neurological disorders
  • Who received verbal and written information about the protocol and signed a consent form to participate in this study.

Exclusion Criteria:

  • Surgery on the lower extremities within the past 6 months
  • A botulinum toxin injection into the triceps surae and/or the tibialis anterior within the past 3 months
  • Pain during dorsiflexion or plantarflexion of the ankle joint
  • Cognitive impairments limiting participation
  • A person referred to in Articles L1121-5, L1121-6, L2121-8, L1121-9 of the Public Health Code
  • Participating in another therapeutic or drug intervention study that could affect this study

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Science basique
  • Répartition: N / A
  • Modèle interventionnel: Affectation à un seul groupe
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: Surface EMG-controlled Rehabilitation Game

Exergame

During the game session, participants will be paired in advance of the visit (an adult participant with hemiparesis paired with another adult participant with hemiparesis, or a healthy volunteer and a child with cerebral palsy paired with another child with a cerebral palsy) to allow for testing of different conditions for the electromyography-controlled rehabilitation game. The estimated duration for each participant is 1 hour and 30 minutes, including a 30-minute game session.

Participants will play the rehabilitation game under different modalities : individually, in pairs in a co-active mode, or in a competitive mode.

In individual mode, they play two different games a rythm game (following the musical tempo by alternating agonist/antagonist contractions) and a target game (the participant controls a rocket that must hit targets based on the intensity of muscle contractions and the muscle being activated....).

The game modalities will be presented in a randomized order.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Muscle activation level
Délai: Day 1 : during the rhythm game in the individual mode

calculated as the mean of the maximum values of the normalized RMS envelope of the EMG signal during each muscle contraction of the Tibialis Anterior and Lateral Gastrocnemius muscles

Day 1 : during the rhythm game in the individual mode

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Muscle activation
Délai: Day 1 : between game mode

calculated as the mean of the maximum values of the normalized RMS envelope of the EMG signal during each muscle contraction of the Tibialis Anterior and Lateral Gastrocnemius muscles

Day 1 : between game mode
Amount of activity performed
Délai: Day 1 : between game mode

Number of contractions performed

Day 1 : between game mode
Amount of activity performed
Délai: Day 1 : between game mode

Total duration of muscle contractions

Day 1 : between game mode
Amount of activity performed
Délai: Day 1 : between game mode

Duration and number of muscle contractions performed at predefined target muscle activation intensities

Day 1 : between game mode
Training volume
Délai: Day 1 : between game mode

Area under the EMG activity curve

Day 1 : between game mode
Co-contraction intensity of the Tibialis Anterior/Lateral Gastrocnemius muscle
Délai: Day 1 : between game mode

The intensity of co-contractions is measured as the ratio of the antagonist's EMG activity during agonist contractions while playing, relative to the EMG activity recorded during the antagonist's MVIC performed before the gaming session.

Day 1 : between game mode
Co-contraction index
Délai: Day 1 : between game mode

The co-contraction index between the tibialis anterior and lateral gastrocnemius muscles will be calculated as the ratio between the area of overlap under the activation curves and the total area corresponding to the activation of both muscles, expressed as a percentage :

I = (area of overlap under the curve / total area of the two muscles) × 100.

Day 1 : between game mode
Muscular fatigability
Délai: Day 1 : between game mode

A wavelet analysis will be performed by comparing the first five contractions with the last five contractions. This analysis will allow to detect potential changes in muscle activity associated with muscular fatigue

Day 1 : between game mode
Perceived fatigue
Délai: Day 1 : at the end of each game modality

Children's Effort Rating Table (CERT) will be used to assess the child's perceived exertion and Borg Rating of Perceived Exertion Scale will be used for adult participants.

Min 0 (not at all) et max 10 (extremely)

Day 1 : at the end of each game modality
Satisfaction level
Délai: Day 1 : at the end of each game modality

Visual analogue scale of satisfaction will be completed by adult participants Min 0 (not at all) et max 10 (extremely)

Day 1 : at the end of each game modality
Flow status
Délai: Day 1 at the end of each game modality

Game Experience Questionnaire (Flow component) completed by adult participants Five questions scored from 0 (not at all) to 4 (extremely)

Day 1 at the end of each game modality
Fatigability
Délai: Day 1 : before and after the game session

Changes of frequency spectrum of the EMG signal recorded during maximal voluntary isometric contraction

Day 1 : before and after the game session
Fatigability
Délai: Day 1 : before and after the game session

Changes of force produced during maximal voluntary isometric contraction recorded using a handheld dynamometer.

Day 1 : before and after the game session
Fatigability
Délai: Day 1 : before and after the game session

Changes of Amplitude of the EMG signal recorded during maximal voluntary isometric contraction

Day 1 : before and after the game session
Fatigability
Délai: Day 1 : between each game modality

Changes of Co-contraction index and intensity of the tibialis anterior/lateral gastrocnemius muscle pair (between the first five and the last five contractions of each game modality)

Day 1 : between each game modality
Usability
Délai: Day 1 after the game session

System Usability Scale (SUS) will be fulfilled by adult participants Ranging from 0 to 100.

Day 1 after the game session
Motivation
Délai: Day 1 after the game session.

Intrinsic Motivation Inventory (IMI) ) will be fulfilled by adult participants Min = 25 and Max = 175

Day 1 after the game session.
Usability experience
Délai: Day 1 after the game session

Researcher-developed questionnaire will be completed by adult participants

Day 1 after the game session
Link between satisfaction and amount of activity
Délai: Day 1 : between game mode

Correlation between satisfaction (Visual analogue sclae of satisfaction from 0 to 10) and activation levels (calculated as the mean of the maximum values of the normalized RMS envelope of the EMG signal during each muscle contraction) in adult participants

Day 1 : between game mode
Link between flow and amount of activity
Délai: Day 1 : between game mode

Correlation between flow (Game experience questionnaire 5 question from 0 to 4) and activation levels ( calculated as the mean of the maximum values of the normalized RMS envelope of the EMG signal during each muscle contraction) in adult participants

Day 1 : between game mode
Validation of a seated position for maximal voluntary isometric contractions test
Délai: Day 1 before the game session

Mesures performed by a dynamometer Analyse of Correlation between maximal voluntary isometric force of the dorsiflexor and plantar flexor muscles assessed using a handheld dynamometer in two testing positions : In the seated position, with the knee flexed at 90° and the ankle at 10° of plantar flexion (i.e., the gaming position) and in the supine position, with the knee flexed at 90° and the ankle positioned at 10° of plantar flexion (standard position).

Day 1 before the game session

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Les enquêteurs

  • Directeur d'études: Sophie HAMEAU, Rennes University Hospital

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Estimé)

1 janvier 2027

Achèvement primaire (Estimé)

1 juillet 2028

Achèvement de l'étude (Estimé)

1 janvier 2029

Dates d'inscription aux études

Première soumission

4 septembre 2026

Première soumission répondant aux critères de contrôle qualité

17 septembre 2026

Première publication (Réel)

24 septembre 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

24 septembre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

17 septembre 2026

Dernière vérification

1 septembre 2026

Plus d'information

Termes liés à cette étude

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

OUI

Description du régime IPD

All of the individual participant data collected during the trial will be available, after the primary publication of the results, to any researchers who provide a methodologically sound proposal. Proposals should be directed to dri@churennes.fr. to gain access, data requestors will need to sign a data access agreement; depending on the case, additional formalities may be required.

Délai de partage IPD

Data availability after the primary publication of the results and until the database is deleted

Critères d'accès au partage IPD

Any researchers who provide a methodologically sound proposal will be able to access the IPD ans supporting information. To gain access, data requestors will need to sign a data access agreement; depending on the case, additional formalities may be required.

Type d'informations de prise en charge du partage d'IPD

  • PROTOCOLE D'ÉTUDE
  • SÈVE
  • CIF
  • ANALYTIC_CODE
  • RSE

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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