- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT04050774
Standing Balance Control Across the Lifespan (BaCoMech)
Balance Control Mechanisms During Perturbed Standing Across the Lifespan
Falls are the leading cause of nonfatal injuries in children and elderly. To understand the causes of falling in these populations, fundamental knowledge of how ageing affects balance control is of utmost importance.
In general, two biomechanical mechanisms allow people to control balance; 1.moving the center of pressure within the base of support using ankle muscle activation; 2.counter-rotating segments around the center of mass. To understand how balance is controlled differently across the lifespan, 4 age groups (each N=20) will be compared to each other; i.e. prepubertal children (6-9y), postpubertal children (15-17y), young adults (18-24y), healthy non-falling older adults (65-80y). .
A force plate platform combined with 3D movement registration will be used to determine the biomechanical balance control strategy across the lifespan during unperturbed and perturbed standing. The innovative but focused scope of this study could provide a breakthrough in our biomechanical understanding of balance control and, in particular, the changes in limitations of balance control in childhood and an ageing (fall-prone) population. The gained fundamental knowledge could lead to unprecedented insights in the causes of falling across the lifespan and in possible targets for intervention.
Aperçu de l'étude
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Hasselt, Belgique, 3500
- Hasselt University
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- prepubertal children (6-9y)
- postpubertal children (15-18y)
- young adults (18-24y)
- healthy non-falling older adults (65-80y) will be included if they 1) did not experience two or more falls during normal daily activities in the preceding year and 2) have no cognitive impairment (tested with Mini-Mental state examination).
Exclusion Criteria:
- inability to speak and understand Dutch;
- inability to maintain independent unsupported stance for 60 seconds;
- current diagnosis of neurological or sensory disorders;
- recurrent dizziness;
- obesity ;
- a history of orthopaedic disorders;
- surgical operation of the lower extremity during last two years;
- use of drugs affecting the CNS or known to affect balance control.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Science basique
- Répartition: Non randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Expérimental: Age group 1
6-9 years old
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The unstable surface will be created with a balance board consisting of a wooden board mounted on a section of a cylinder, creating an unstable support in the sagittal plane or in the frontal plane.
The participants will stand on three balance boards, varying the height of the surface of the board above the point of contact (15, 17 and 19 cm respectively).
The radius of the cylinder will kept constant at 24 cm.
The standing surface will be 48cm x 48 cm
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Expérimental: Age group 2
15-17 years old
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The unstable surface will be created with a balance board consisting of a wooden board mounted on a section of a cylinder, creating an unstable support in the sagittal plane or in the frontal plane.
The participants will stand on three balance boards, varying the height of the surface of the board above the point of contact (15, 17 and 19 cm respectively).
The radius of the cylinder will kept constant at 24 cm.
The standing surface will be 48cm x 48 cm
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Expérimental: Age group 3
18 - 24 years old
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The unstable surface will be created with a balance board consisting of a wooden board mounted on a section of a cylinder, creating an unstable support in the sagittal plane or in the frontal plane.
The participants will stand on three balance boards, varying the height of the surface of the board above the point of contact (15, 17 and 19 cm respectively).
The radius of the cylinder will kept constant at 24 cm.
The standing surface will be 48cm x 48 cm
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Expérimental: Age group 4
65-80 years old
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The unstable surface will be created with a balance board consisting of a wooden board mounted on a section of a cylinder, creating an unstable support in the sagittal plane or in the frontal plane.
The participants will stand on three balance boards, varying the height of the surface of the board above the point of contact (15, 17 and 19 cm respectively).
The radius of the cylinder will kept constant at 24 cm.
The standing surface will be 48cm x 48 cm
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Balance Control; centre of mass acceleration based on 3D movement registration and ground reaction forces
Délai: day 1
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Centre of mass acceleration (in kg.m2/s2) (calculations based on; van Dieen JH, van Leeuwen M, Faber GS.
Learning to balance on one leg: motor strategy and sensory weighting.
J Neurophysiol.
2015;114(5):2967-82.)
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day 1
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Contribution of the ankle strategy to centre of mass acceleration based on 3D movement registration and ground reaction forces
Délai: day 1
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The contribution of the ankle strategy (difference between the centre of pressure and the centre of mass (in kg.m2/s2)) to centre of mass acceleration in the sagittal and frontal plane will be calculated based on total body kinematics (SIMI motion - 3D movement registration) and kinetics (AMTI force plate) (calculations based on; van Dieen JH, van Leeuwen M, Faber GS.
Learning to balance on one leg: motor strategy and sensory weighting.
J Neurophysiol.
2015;114(5):2967-82.)
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day 1
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Contribution of the counter-rotation mechanism to centre of mass acceleration based on 3D movement registration and ground reaction forces
Délai: day 1
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The contribution of the counter-rotation mechanism (change in angular momentum (in kg.m2/s2)) to centre of mass acceleration in the sagittal and frontal plane will be calculated based on total body kinematics (SIMI motion - 3D movement registration) and kinetics (AMTI force plate) (calculations based on; van Dieen JH, van Leeuwen M, Faber GS.
Learning to balance on one leg: motor strategy and sensory weighting.
J Neurophysiol.
2015;114(5):2967-82.))
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day 1
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Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Autres numéros d'identification d'étude
- Projectlifespanbalance2018-001
Informations sur les médicaments et les dispositifs, documents d'étude
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