Abstract
ABSTRACT Background and Aim: Controversy regarding feedforward activation of transversus abdominis and limited studies regarding bilateral activation of trunk muscles during unilateral arm movement lead us to perform a study to evaluate bilateral anticipatory activity of trunk muscles during unilateral arm flexion. Materials and Methods: Eighteen healthy subjects participated in this study. The electromyographic activity of the right Anterior Deltoid (AD) and bilateral trunk muscles including the Transversus Abdominis/Obliquus Internus (TA/OI), Superficial Lumbar Multifidus (SLM) and Lumbar Erector Spinae (LES) during rapid flexion of the right upper limb in response to a visual stimulus was recorded and the onset latency and anticipatory activity of the recorded trunk muscles were calculated. Results: The cotralateral TA/OI was the first muscle activated in anticipation of the right arm flexion. The ipsilateral TA/OI activated significantly later than all other trunk muscles (P 0.05). Conclusion: Normal anticipatory activity during unilateral arm flexion was not bilateral anticipatory co-activation of TA/OI. Further surveys are required to detect normal muscle activation pattern in healthy subjects prior to prescribing bilateral activation training of Transversus Abdominis for subjects with chronic low back pain. Key words: Anticipatory Postural Adjustments, Motor Control, Low Back, Internal Perturbation
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
