ASSOCIATION BETWEEN IMU BASED ACCELEROMETRY ON THE TIBIA AND VERTICAL GROUND REACTION FORCE DURING DROP LANDING

Aaron Seth Clapp
2020
Peak vertical ground reaction force is a fundamental biomechanical variable often used to assess lower extremity injury risk. Currently, the tools to measure vGRF are not cost effective. Therefore, the purpose of this study is to determine the association between the variables related to IMU-based accelerometry and vGRF as measured from a research grade force-plate during a drop-landing task. Correlations were run on the averages of the 8 trials for peak vGRF to MVA and MMVAD in the right,
more » ... dominant, and non-dominant limb. The non-dominant limb showed the greatest correlation of peak vGRF to MVA (r=0.803, p<0.01) and MMVAD (r=0.779, p<0.01). The dominant limb showed the lowest correlation of peak vGRF to MVA (r=0.573, p<0.01) and MMVAD (r=0.563, p<0.01). The strength of the association between accelerometry and vGRF during a drop landing may be limb dependent. The strongest associations between vGRF, MVA and MMVAD were in the non-dominant limb.
doi:10.17615/252z-g263 fatcat:u3hkjug3nnehjfbjkn2vxt2y3m