The biomechanical effects of elevated heels on the barbell deadlift
This study evaluated the kinematic effects of performing a barbell deadlift with different elevated heel heights. Relative spine, lumbar, and knee angles as well as absolute trunk, femur, and shank angles were taken at two points of measurement: the initial lift off and when the bar passed the knee. Three-dimensional motion capture systems captured twelve reflective markers placed on body landmarks of the subjects while the barbell deadlift was performed at 70% of their 1 repetition maximum (1RM) load at constant barbell speeds with seven different heel heights in a randomized order. Separate one way repeated measures 7x1 (heel x body measurement) ANOVAs for each measurement was used. There was no significant differences (p>0.05) were found for anybody measurements between the heel heights. These data suggests that difference in heel height does alter deadlift kinematics.