TY - JOUR
T1 - Age-related differences to neck muscle activation latency as a potential risk factor to fall-related traumatic brain injuries
AU - Wood, Tyler A.
AU - Hernandez, Manuel E.
AU - Sosnoff, Jacob J.
N1 - Funding Information:
Dr. Jacob Sosnoff is a Professor and Director of the Motor Control Research Laboratory in the College of Applied Health Sciences Department of Kinesiology and Community Health at the University of Illinois at Urbana-Champaign. His professional background and training are in motor control and gerontology. He earned his PhD in Kinesiology from Pennsylvania State University where he was a National Institute of Aging pre-doctoral fellow. His current research focuses on walking, mobility and balance impairments. His research is funded by the National Multiple Sclerosis Society, National Institute of Health, and the National Institute on Disability, independent living and rehabilitation as well as various industry sponsors. He is the founding director of the Illini Fall Prevention Clinic, a community resource for identifying people’s individualized fall risks and developing personalized strategies to reduce those risks.
Publisher Copyright:
© 2020
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/4
Y1 - 2020/4
N2 - This investigation examined age-related differences in neck muscle activation latency in response to anterior and posterior postural perturbations to understand the potential implications in fall-related traumatic brain injuries. 57 adults were recruited and categorized into 3 groups based on age: Young (18–30 years old), Young-Old (60–74 years) and Old-Old (75–89 years) group. Study participants underwent six anterior and posterior postural perturbations while bilateral sternocleidomastoid, upper trapezius, and splenius capitis electromyography was collected. Muscle activation latency time was calculated with established procedures. During anterior translations, a significant group effect for muscle activation latency of the right SCM (F(2,43) = 8.786, p < 0.001), right (F(2,34) = 4.838, p = 0.014) and left (F(2,34) = 5.015, p = 0.012) upper trapezius, and right (F(2,45) = 3.195, p = 0.050) and left (F(2,45) = 3.819, p = 0.029) splenius capitis was observed. During posterior translations, a significant group effect for muscle activation latency was observed in the right (F(2,34) = 6.419, p = 0.004) and left (F(2,41) = 5.275, p = 0.009) SCM, and the right (F(2,34) = 4.925, p = 0.013) and left (F(2,32) = 4.055, p = 0.027) upper trapezius. Both older groups displayed longer muscle activation latencies than the young group. The age-related differences in neck muscle activation latency may be placing older adults at a greater risk of fall-related traumatic brain injuries.
AB - This investigation examined age-related differences in neck muscle activation latency in response to anterior and posterior postural perturbations to understand the potential implications in fall-related traumatic brain injuries. 57 adults were recruited and categorized into 3 groups based on age: Young (18–30 years old), Young-Old (60–74 years) and Old-Old (75–89 years) group. Study participants underwent six anterior and posterior postural perturbations while bilateral sternocleidomastoid, upper trapezius, and splenius capitis electromyography was collected. Muscle activation latency time was calculated with established procedures. During anterior translations, a significant group effect for muscle activation latency of the right SCM (F(2,43) = 8.786, p < 0.001), right (F(2,34) = 4.838, p = 0.014) and left (F(2,34) = 5.015, p = 0.012) upper trapezius, and right (F(2,45) = 3.195, p = 0.050) and left (F(2,45) = 3.819, p = 0.029) splenius capitis was observed. During posterior translations, a significant group effect for muscle activation latency was observed in the right (F(2,34) = 6.419, p = 0.004) and left (F(2,41) = 5.275, p = 0.009) SCM, and the right (F(2,34) = 4.925, p = 0.013) and left (F(2,32) = 4.055, p = 0.027) upper trapezius. Both older groups displayed longer muscle activation latencies than the young group. The age-related differences in neck muscle activation latency may be placing older adults at a greater risk of fall-related traumatic brain injuries.
KW - Accidental falls
KW - Aging
KW - Neck muscles
KW - Traumatic brain injuries
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U2 - 10.1016/j.jelekin.2020.102405
DO - 10.1016/j.jelekin.2020.102405
M3 - Article
C2 - 32088582
AN - SCOPUS:85079672417
VL - 51
JO - Journal of Electromyography and Kinesiology
JF - Journal of Electromyography and Kinesiology
SN - 1050-6411
M1 - 102405
ER -