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Effects of balance constraints during a double-step reaching task.
Moya-Jofré, Christopher; Mariman, Juan José; Bruna-Melo, Trinidad; Carrasco-Plaza, José; Torres-Elgueta, Julio; Aleitte-Leyton, Fernanda; Muñoz-Puelman, Cristian; Horak, Fay B; Mancini, Martina; Burgos, Pablo Ignacio.
Afiliação
  • Moya-Jofré C; Neurorehabilitation and Motor Control Lab, Faculty of Medicine, Universidad de Chile, Chile; Biomechanics Laboratory, Physical Therapy, Hospital del Trabajador, Chile; Biomechanics Laboratory, School of Physical Therapy, Universidad Santo Tomas, Chile.
  • Mariman JJ; Nucleus of wellbeing and human development, education research center (CIE-UMCE), Department of Physical Therapy, Faculty of Arts and Physical Education, Universidad Metropolitana de Ciencias de la Educación; Nucleus of wellbeing and human development, education research center (CIE-UMCE), Departmen
  • Bruna-Melo T; Neurorehabilitation and Motor Control Lab, Faculty of Medicine, Universidad de Chile, Chile; Department of Physical Therapy, Faculty of Medicine, Universidad de Chile, Chile; Department of Physical Therapy, Faculty of Arts and Physical Education, Universidad Metropolitana de Ciencias de la Educación
  • Carrasco-Plaza J; Neurorehabilitation and Motor Control Lab, Faculty of Medicine, Universidad de Chile, Chile; SCIAN-Lab, Faculty of Medicine, Universidad de Chile, Chile.
  • Torres-Elgueta J; Department of Physical Therapy, Faculty of Medicine, Universidad de Chile, Chile; Department of Neuroscience, Faculty of Medicine, Universidad de Chile, Chile.
  • Aleitte-Leyton F; Neurorehabilitation and Motor Control Lab, Faculty of Medicine, Universidad de Chile, Chile; Department of Physical Therapy, Faculty of Medicine, Universidad de Chile, Chile.
  • Muñoz-Puelman C; Neurorehabilitation and Motor Control Lab, Faculty of Medicine, Universidad de Chile, Chile.
  • Horak FB; Balance Disorder Laboratory, Department of Neurology, Oregon Health and Science University, Portland, OR, United States.
  • Mancini M; Balance Disorder Laboratory, Department of Neurology, Oregon Health and Science University, Portland, OR, United States.
  • Burgos PI; Neurorehabilitation and Motor Control Lab, Faculty of Medicine, Universidad de Chile, Chile; Department of Physical Therapy, Faculty of Medicine, Universidad de Chile, Chile; Department of Neuroscience, Faculty of Medicine, Universidad de Chile, Chile; Balance Disorder Laboratory, Department of Neur
Gait Posture ; 113: 130-138, 2024 Sep.
Article em En | MEDLINE | ID: mdl-38879895
ABSTRACT

BACKGROUND:

In daily life tasks of the upper limb, we must make quick corrections with our hands in unstable postural situations. Postural and reaching control mechanisms are involved in the accurate execution of upper-limb tasks. RESEARCH QUESTION This research aimed to determine the effect of different postural stability conditions on the motor performance of the upper limb in a reaching task with non-static targets.

METHODOLOGY:

19 young participants performed a reaching task toward targets that exhibited a change in position (at 200 or 600 ms) in different postural conditions (bipedal-firm, bipedal-foam, and unipedal-foam surface). Performance on the screen (motion time and spatial error), balance (center of pressure displacements, CoP), and index finger movements were recorded during the reaching task.

RESULTS:

The instability affects the finger kinematic (displacements) and CoP kinematic (displacements, speed, and smoothness) without affecting the performance on the screen (precision and duration). The timing of target change affects the performance on the screen, finger kinematic (speed and smoothness), and CoP kinematic (displacements, speed, and smoothness).

SIGNIFICANCE:

Postural and reaching control systems enable accurate hand motions in less stable situations, even in reaching tasks with non-static targets. The postural and reaching control systems can protect the end-effector performance during unstable conditions but not during trials with less time to correct the motion.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Desempenho Psicomotor / Equilíbrio Postural Limite: Adult / Female / Humans / Male Idioma: En Revista: Gait Posture Assunto da revista: ORTOPEDIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Chile País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Desempenho Psicomotor / Equilíbrio Postural Limite: Adult / Female / Humans / Male Idioma: En Revista: Gait Posture Assunto da revista: ORTOPEDIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Chile País de publicação: Reino Unido