Citation

Wood TA, Moon Y, Sun R, Bishnoi A, Sosnoff JJ. Biomed. Res. Int. 2019; 2019: e6804614.

Affiliation

Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, 906 S. Goodwin Avenue, Urbana, IL 61801, USA.

Copyright

(Copyright © 2019, Hindawi Publishing)

DOI

10.1155/2019/6804614

PMID

31143775

PMCID

PMC6501264

Abstract

PURPOSE: To examine head impact incidence and head acceleration during experimentally induced falls as a function of age.

METHODS: 15 young adults (21.2±2.7) and 10 older adults (61.9±4.3 years) underwent 6 experimentally induced sideways falls. Participants fell sideways onto a 20cm crash pad. The number of head impacts was tabulated from video recordings and head acceleration was calculated from motion capture data. A total of 147 falls were analyzed.

RESULTS: The young group underwent 88 falls, in which 11.4% resulted in head impact. The older group underwent 59 falls, in which 34.5% resulted in head impact. A proportion analysis revealed older adults had a significantly greater proportion of head impacts than young adults (X²(1) = 11.445, p = 0.001). A two-way ANOVA only revealed a main effect of head impact on acceleration (F(1,142) = 54.342, p<0.001).

CONCLUSION: The older adults experienced a greater proportion of head impacts during sideways falls. Head impact resulted in greater head acceleration compared to no head impact. Collectively, this data highlights the possibility that age-related neuromuscular changes to head control may result in elevated risk of fall-related TBIs. Future research examining mechanisms underlying increases in fall-related head impact is warranted.

Language: en