Anticipatory and reactive response to falls: Muscle synergy activation of forearm muscles
We investigated the surface electromyogram response of six forearm muscles to falls onto the outstretched hand. The extensor carpi radialis longus, extensor carpi radialis brevis, extensor carpi ulnaris, abductor pollicis longus, flexor carpi radialis and flexor carpi ulnaris muscles were sampled from eight volunteers who underwent ten self-initiated falls. All muscles initiated prior to impact. Co-contraction is the most obvious surface electromyogram feature. The predominant response is in the radial deviators. The surface electromyogram timing we recorded would appear to be a complex anticipatory response to falling modified by the ef- fect on the forearm muscles following impact. The mitigation of the force of impact is probably more importantly through shoulder abduction and extension and elbow flexion rather than action of the forearm muscles.
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|Item Type:||Journal Article|
|Additional Information:||PMID: 26387993|
|Keywords:||Falls; Anticipatory response; Forearm muscles|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > CLINICAL SCIENCES (110300) > Orthopaedics (110314)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > HUMAN MOVEMENT AND SPORTS SCIENCE (110600) > Motor Control (110603)
|Divisions:||Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Exercise & Nutrition Sciences
|Copyright Owner:||Copyright 2015 World Scientific Publishing Co Pte Ltd|
|Copyright Statement:||Electronic version of an article published as Hand Surgery, Volume 20, Issue 03, October 2015, Pages 343-351, DOI: 10.1142/S0218810415400067 © copyright World Scientific Publishing Company, http://www.worldscientific.com/worldscinet/hs|
|Deposited On:||16 Dec 2015 05:25|
|Last Modified:||02 Oct 2016 00:09|
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