Investigating Inter-Day Variations in the Physical Effects of Exoskeletons: Requirements for Long-Term Biomechanical Studies

Exoskeletons potentially reduce physical strain on workers. However, studies investigating the long-term effects of exoskeletons in workplace are rare, not least because demonstrating impacts faces several challenges, including collection reliable biomechanical data with exoskeleton. By examining potential impact using an exoskeleton inter-day measurements, we can provide valuable insights into suitability studies. Therefore, this study aims to investigate variation muscle activity (MA) and kinematics trunk legs during lifting, carrying, walking, static bending without a passive back The majority results show no significant differences variation. found minor unilateral knee ankle when BSE walking tasks, as well MA M. biceps femoris measuring lifting tasks. Cohen’s d showed small effect sizes, ranging from −0.0045 ≤ 0.384 for all p-values. While classify observed minor, it is still crucial consider day-to-day variations by implementing high levels standardization designs, precise fitting, consistent assistance level, familiarization measurement systems, standardized working measurements be minimized. Additional field necessary validate our findings real work conditions.