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Influence of different seated postures and trunk control level in proximal and distal adjustments of reaching in low-risk preterm and full term infants

Grant number: 17/19577-7
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): December 01, 2017
Effective date (End): November 30, 2018
Field of knowledge:Health Sciences - Physiotherapy and Occupational Therapy
Principal Investigator:Eloisa Tudella
Grantee:Giovanna Laura Neves Antonio
Home Institution: Centro de Ciências Biológicas e da Saúde (CCBS). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil


The reach is considered of extreme importance for motor, cognitive, perceptual and social development and its acquisition allows the infant a bigger exploration, manipulation and experience of the environment during the first months of life. Preterm infants, however, may present delay in emergency and functionality of reaching when compared to full-term infants. The objective of this longitudinal study is to verify the influence of different sitting postures on the proximal and distal adjustments of reaching, and to identify the level of trunk control. Will be evaluated preterm infants between 6 and 8 months of corrected age and full-term infants between 6 and 8 months of age. In the evaluation of reaching, infants will be placed in ring and 90º of flexion, and a rigid object will be presented in 3 directions: in the midline of the infant's trunk, and 45º on the right and left. The dependent variables will be the reach frequency, proximal adjustments (uni and bimanual), distal adjustments (palm orientation and hand opening) and grasping (with or without grasping). To evaluate motor control of infants, it will be used the Alberta Infant Motor Scale (AIMS) and to assess the level of trunk control, the Assessment of Trunk Control (SATCo). It is expected that low-risk preterm infants will have a more functional reaching (open hand, upright and gripped) in the seated ring posture by the bigger support base, which will allow the infant to have bigger trunk stability. It is also presumed that preterm infants are also delayed both in reaching functionality and in trunk control level as compared to full-term infants. (AU)