Effects of the Additional Weight on the Reaching Behavior of Pre Term Infants With Low Birth Weight
Effects of the Additional Weight on the Reaching Behavior of Preterm Infants With Low Birth Weight: Randomized Controlled Trial
Aperçu de l'étude
Statut
Statut
Les conditions
Les conditions
Intervention / Traitement
Intervention / Traitement
Type d'étude
Type d'étude
Inscription (Réel)
Inscription
Phase
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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DF
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Brasília, DF, Brésil, 72220-275
- Campus UnB Ceilandia
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Critères de participation
Critère d'éligibilité
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Adequate weight infants: healthy infants born with gestational age between 38-42 weeks and adequate birth weight (> 2500 grams);
- Low weight infants: healthy infants born with gestational age between 32-36 weeks and 6 days and with low birth weight (between 1500 and 2500 grams).
Exclusion Criteria:
- Anoxiated infants;
- Signs of neurological impairment (eg, hypoxic-ischemic encephalopathies grade I, II and III, intracranial hemorrhage and neonatal seizures);
- Congenital malformations (eg myelomeningocele and achondroplasias);
- Syndromes (e.g Down Syndrome);
- Sensorial alterations (visual and auditory);
- Cardiorespiratory difficulties;
- Orthopedic impairments (e.g, congenital clubfoot);
- Apgar below 8 and 10 in the first and fifth minutes, respectively.
- Infants who do not attend any of the evaluations, who do not complete at least 80% of the training or who cry uncontrollably, not allowing at least 10 reachings in the evaluations and training. Those that present intercurrences that may compromise normal neurosensorimotor development (for example, recurrent pneumonia, kidney and intestinal infection).
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Seul
Nombre de bras
Armes et Interventions
Groupe de participants / BrasGroupe de participants / Bras |
Intervention / TraitementIntervention / Traitement |
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Expérimental: Training with additional weight
The infants will be submitted to a reaching behavior training program of 4 weeks, two times per week (totaling 8 sessions).
During this training program, infants will use a bracelet with an additional weight characterized by 20% of the total mass of the upper limb placed on both wrists.
This training will be adopted for the adequate weight intervention group and low weight intervention group.
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The infants will be positioned in a reclined position.
A bracelet with an additional weight (20% of the total mass of the upper limb) will be placed on both wrists.
The training will happen 2x/week, during 4 weeks (8 sessions).
An object will be used to stimulate the reaching behavior, which will be displayed by the examiner (positioned in front of the infant), and presented in the midline at shoulder height, considering the distance from the arm's length of the infant to the height of the wrist.
The physiotherapist will draw the attention of the infant to the object, moving it momentarily so that the infant perceives it and reaches it.
After reaching, the object will be carefully removed and resubmitted in order to elicit a new movement.
The interval between each presentation will be of approximately 5 seconds.
At least 10 movements will be stimulated.
If the infant does not achieve the 10 reaches within the maximum interval of 15 minutes, the session will be terminated.
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Comparateur placebo: Training without additional weight
The infants will be submitted to a reaching behavior training program of 4 weeks, two times per week (totaling 8 sessions).
During this training program, infants will use a bracelet without additional weight, placed on both wrists.
This training will be adopted for the adequate weight placebo group and low weight placebo group.
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The infants will be positioned in a reclined position.
A bracelet without the additional weight will be placed on both wrists.
The training will happen 2x/week, during 4 weeks (8 sessions).
An object will be used to stimulate the reaching behavior, which will be displayed by the examiner (positioned in front of the infant), and presented in the midline at shoulder height, considering the distance from the arm's length of the infant to the height of the wrist.
The physiotherapist will draw the attention of the infant to the object, moving it momentarily so that the infant perceives it and reaches the object.
After reaching, the object will be carefully removed (or picked up) and resubmitted in order to elicit a new movement.
The interval between each presentation of the object will be of approximately 5 seconds.
At least 10 movements will be stimulated.
If the infant does not achieve the 10 reaches within the maximum interval of 15 minutes, the session will be terminated.
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Que mesure l'étude ?
Principaux critères de jugement
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Movement unit
Délai: Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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the number of maximum velocities between two minimum velocities, for which the difference was greater than 1 cm/s
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Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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Electromyographic activity
Délai: Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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Magnitude of the muscle recruitment during the reaching behavior, measured in microvolts (root mean square - RMS)
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Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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Mesures de résultats secondaires
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Mean Velocity
Délai: Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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the ratio between the distance traveled during the reaching behavior and the duration of the movement
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Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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Straightness Index
Délai: Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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ratio between the minimal distance that could have been traveled in this trajectory (distance between the initial position of the hand and the object) and the distance traveled by the hand (total trajectory).
The closer is this index to 1, the straighter is the trajectory.
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Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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Grasping
Délai: Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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categorical variable classified into (a) successful: when the infant was able to grasp the object with one or both hands; and (b) unsuccessful: when the infant touched the object, but did not grasp it
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Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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Muscle coactivation
Délai: Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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Coactivation between the biceps and triceps muscle during the reaching behavior, measured in percentage (activation of the biceps/activation of the triceps)
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Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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Transport Unit
Délai: Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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The relative duration of the first movement unit in relation to total duration of reaching
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Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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Deceleration time
Délai: Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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The time necessary for the infant to decelerate the arm movement so that the hand touches an object.
This period of the duration is measured from the time of appearance of the peak of velocity to the end of the reach.
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Change from Pre-Intervention (baseline) compared to Post-Intervention (4 weeks) and Follow-up (7 days)
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Collaborateurs et enquêteurs
Parrainer
Parrainer
Les enquêteurs
Les enquêteurs
- Directeur d'études: Rodrigo Carregaro, PhD, University of Brasilia
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Début de l'étude
Achèvement primaire (Réel)
Achèvement primaire
Achèvement de l'étude (Réel)
Achèvement de l'étude
Dates d'inscription aux études
Première soumission
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Première publication
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour publiée
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
Autres numéros d'identification d'étude
- Additional Weight Trial
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Informations sur les médicaments et les dispositifs, documents d'étude
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