Abstract
Ecological Validity for Upper Limb Associated Reaction Testing
Brain Injury, Vol.36(Supplemental 1), pp.8-9
Virtual World Congress on Brain INnury, 2021 (Online, 28-Jul-2021 - 28-Jul-2021)
2022
Abstract
Aim:
1. To evaluate relationships between stationary and dynamic-associated reaction tests in people with acquired brain injury
2. To evaluate the relationship between surface electromyography and kinematics for in associated reactions
3. To evaluate the test–retest reliability of these assessments.
Design: Cross-sectional observational study.
Method: Participants underwent associated reaction testing with seated contralateral maximal voluntary isometric contraction tests and walking (self-selected and fast speeds). For seated tests, measures included biceps surface electromyography and elbow goniometry. For walking tests, measures included biceps surface electromyography and three-dimensional motion analysis kinematics. Pearson’s correlations evaluated the relationships. A subgroup of chronic participants (> 1 year post injury) were reassessed one-week later for reliability.
Results: For biceps brachii sEMG during seated and walking tests, there was a strong (r = 0.65) and moderate (r = 0.53) relationship at self-selected and fast walk, respectively. A low-to-moderate relationship existed between biceps brachii sEMG and kinematics during walking, and between seated and walking measures of ARs (r = 0.23 to 0.53). All tests had strong-to-very strong test–retest reliability (intra-class correlation coefficients > 0.78).
Conclusion: Seated tests (measured by goniometry and biceps surface electromyography) correlate only weak-to-moderately to associated reaction walking kinematics, and moderately-to-strongly with biceps surface electromyography during walking. Moderate relationships existed between surface electromyography and kinematics, indicating they may provide different information for associated reactions. Seated maximal force associated reaction tests do not reflect their functional occurrence, suggesting questionable ecological validity. Kinematics provide an objective measure of the visual appearance of associated reactions. Reliable and portable surface electromyography is now available and may provide complimentary information to assist in differentiating contributing factors to associated reactions.
Details
- Title
- Ecological Validity for Upper Limb Associated Reaction Testing
- Authors
- Michelle Kahn (Author) - University of the Sunshine Coast, Queensland, School of Health and Behavioural Sciences - LegacyGavin P Williams (Author) - Epworth HospitalBenjamin F Mentiplay (Author) - La Trobe UniversityKelly Bower (Author) - University of MelbourneJohn Olver (Author) - Epworth HospitalRoss Allan Clark (Author) - University of the Sunshine Coast, Queensland, School of Health and Behavioural Sciences - Legacy
- Publication details
- Brain Injury, Vol.36(Supplemental 1), pp.8-9
- Conference details
- Virtual World Congress on Brain INnury, 2021 (Online, 28-Jul-2021 - 28-Jul-2021)
- Publisher
- Taylor & Francis
- DOI
- 10.1080/02699052.2021.2023296
- ISSN
- 1362-301X
- Organisation Unit
- School of Health and Sport Sciences - Legacy; University of the Sunshine Coast, Queensland; School of Health and Behavioural Sciences - Legacy; School of Health - Public Health
- Language
- English
- Record Identifier
- 99622937502621
- Output Type
- Abstract
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