Humantech certified ergonomist Blake McGowan shares the results of a study that quantified the impact of upper-extremity exoskeletons on low back forces in this month's video. Reference: Weston EB, Alizadeh M, Knapik GG, Wang X, and Marras WS. (2018). Biomechanical evaluation of exoskeleton use on loading of the lumbar spine. Appl Ergon. 2018 Apr;68:101-108.