Factors contributing to racial differences in gait mechanics differ by sex |
| |
| Affiliation: | 1. Department of Biomedical Engineering and Mechanics, Virginia Tech, 495 Old Turner Street Blacksburg, VA, 24060, 300 Norris Hall, USA;2. Department of Sociology, Virginia Tech, 225 Stanger Street, Blacksburg, VA, 24060, 562C McBryde Hall, USA;3. Department of Evolutionary Anthropology, Duke University, 130 Science Drive, Durham, NC, 27708, 203 Biological Sciences Building, USA;4. Department of Exercise Science, University of South Carolina, 921 Assembly Street Columbia, SC, 29208, United States;5. Center for Gerontology, Virginia Tech, 230 Grove Ln Blacksburg, VA, 24060, USA;1. Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy;2. Department of Medical and Surgical Sciences, University of Bologna, Italy;1. Neuromotor and Cognitive Rehabilitation Research Center, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy;2. Neurorehabilitation Unit, Department of Neurosciences, University Hospital of Verona, Verona, Italy;1. Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy;2. IRCSS Neurological Institute “C. Mondino”, Pavia, Italy;1. Neuromotor and Cognitive Rehabilitation Research Center, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy;2. Neurorehabilitation Unit, Department of Neurosciences, University Hospital of Verona, Verona, Italy;1. IRCCS Don Carlo Gnocchi Foundation, Clinical research, Milan, Italy;2. University of Brescia, Clinical and Experimental Sciences Department, Brescia, Italy;3. IRCCS Don Carlo Gnocchi Foundation Milan Italy- University of Brescia, Clinical and Experimental Sciences Department, Brescia, Italy |
| |
| Abstract: | BackgroundRacial differences in gait mechanics have been recently reported, but we don’t know what factors may drive differences in gait and whether these factors are innate or modifiable. The answers to those questions will inform both basic research and clinical interventions and outcomes.Research questionDo anthropometric, strength, and health status measures explain racial differences in gait between African Americans (AA) and white Americans (WA)?MethodsVenous blood samples, anthropometric measures, lower extremity strength, and an assessment of health status were collected from 92 participants (18–30 years old) as part of an Institutional Review Board-approved study. 3D motion capture and force plate data were recorded during 7 walking trials at set regular (1.35 m/s) and fast (1.6 m/s) speeds. Racial differences in gait were identified at both speeds. Correlations between anthropometric, strength, and health status independent variables and outcome measures were computed after stratifying data by sex. Stepwise linear regression models evaluated whether the inclusion of anthropometric, strength, and health status independent variables explained racial effects.ResultsIn males, no racial differences in gait were explained by independent variables. Q-angle and ankle dorsiflexion strength accounted for racial differences in self-selected walking speed in females. Racial differences in ankle plantarflexion angle were explained by ankle plantarflexion strength differences.SignificanceFactors that explain racial differences in gait in females were both innate and modifiable. These data make clear that it is important to include racially diverse normative gait databases in research studies. These results also identify potential intervention targets aimed at reducing racial health disparities. |
| |
| Keywords: | Race Anthropometry Strength Health Disparities |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
