2134/21171 Daniel Fong Daniel Fong Youlian Hong Youlian Hong Jing-Xian Li Jing-Xian Li Lower extremity preventive measures for slips: joint moments and myoelectric analysis Loughborough University 2016 Electromyography Kinetics Biomechanics Slips and falls Fall prevention Joint torque Medical and Health Sciences not elsewhere classified 2016-05-11 11:17:39 Journal contribution https://repository.lboro.ac.uk/articles/journal_contribution/Lower_extremity_preventive_measures_for_slips_joint_moments_and_myoelectric_analysis/9626714 This study investigated the lower extremity preventive measures for slips on simulated slippery surfaces in construction worksites. A total of 15 harnessed Chinese males walked without slips on a 5-m walkway in 16 simulated conditions 10 times at their natural cadence. Joint moments were calculated from kinetics, kinematics and anthropometric data recorded from a force plate, a Novel Pedar system and a motion analysis system. Data were evaluated from footstrike to mid-stance at 10%-stance intervals. Electromyography signals from tibialis anterior, gastrocnemius, rectus femoris and biceps femoris in one stride were evaluated in four phases, including early/late stance and swing. Results showed that lower extremity preventive measures for slips included prolonged ankle plantar flexion moments from 25% to 92% stance, increased ankle plantar flexion moments from 30% stance to mid-stance, and diminished knee extension moments from 10% to 30% stance. Higher activity of rectus femoris and gastrocnemius were found in the late stance and the swing phase respectively.