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Updated: Sep 9, 2025
08:12
Experimental Methods to Study Human Postural Control
Published on: September 11, 2019
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El envejecimiento altera la capacidad de respuesta postural al centro de movimiento de la masa
Madhur Mangalam1, Damian Kelty-Stephen2, Mahsa Barfi3
1Department of Biomechanics, University of Nebraska Omaha, Omaha, NE, USA.
Journal of the Royal Society, Interface
|August 28, 2025
Resumen
El envejecimiento implica un sistema postural más sensible, no sólo una pérdida de complejidad. Los adultos mayores exhiben mayores efectos de centro de masa (CoM) a centro de presión (CoP), especialmente en condiciones difíciles.
Área de la Ciencia:
- Biomecánica
- La neurociencia
- Gerontología
Sus antecedentes:
- El envejecimiento a menudo se caracteriza por una 'pérdida de complejidad' en el control postural.
- Esta perspectiva puede pasar por alto los mecanismos de reorganización compensatoria en los adultos mayores.
Objetivo del estudio:
- Investigar la coordinación entre el centro de masa (CoM) y el centro de presión (CoP) en adultos jóvenes y mayores.
- Explorar cómo el envejecimiento afecta la complejidad del control postural y la reorganización.
Principales métodos:
- Se estudió el acoplamiento CoM-CoP en adultos jóvenes y mayores en superficies rígidas y de espuma, con los ojos abiertos y cerrados.
- Se analizaron las correlaciones temporales y la capacidad de respuesta de las interacciones CoM-CoP.
Principales resultados:
- Los adultos mayores demostraron mayores efectos de CoM a CoP, particularmente en escalas de tiempo relacionadas con los ajustes compensatorios.
- La inestabilidad de la superficie de la espuma aumentó la sensibilidad de la CoP a la CoM a lo largo del tiempo en adultos mayores.
- La variabilidad en la estructura temporal de la CoP influyó en la dependencia de tareas de los efectos CoM-CoP.
Conclusiones:
- El envejecimiento lleva a un sistema postural más sensible, desafiando el simple modelo de "pérdida de complejidad".
- El control postural en adultos mayores implica una reorganización compleja y la adaptación a los desafíos sensoriales y físicos.
Palabras clave:
el equilibriocentro de la masacentro de presiónCoordinaciónRegresión fractalmovimiento posturalMás Videos Relacionados
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