6533b857fe1ef96bd12b3cf5
RESEARCH PRODUCT
The role of anticipatory postural adjustments during whole body forward reaching movements
Thierry PozzoAlexander M. GrishinPaul J. Stapleysubject
AdultMalemedicine.medical_specialtyMovementPostureContext (language use)ElectromyographyPhysical medicine and rehabilitationReference ValuesReaction TimemedicineHumansFoot pressureGround reaction forceFixed baseCommunicationmedicine.diagnostic_testElectromyographybusiness.industryGeneral NeuroscienceBody movementAdaptation PhysiologicalAnticipationFemaleWhole bodyPsychologybusinessdescription
THE purpose of this study was to examine the role of anticipatory postural adjustments (APAs) in the execution of forward oriented whole body reaching movements. From the standing position, eight healthy subjects were asked to reach an object placed at 45 cm from the feet, at both naturally paced and fast speeds. Electromyographic signals of six antagonistic muscles were analysed in conjunction with centre of mass (CM) displacements, centre of foot pressure displacements and resultant ground reaction forces. Results revealed that APAs created necessary angular momentum of body segments for effective task execution. These results suggest that APAs can initiate movements conducted from a fixed base of support, and in this context do not act solely to stabilize the CM. NeuroReport 9: 395‐401 © 1998 Rapid Science Ltd.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-03-25 | NeuroReport |