Applying psychophysics to prevent overexposure: On the relationships between acceptable manual force, joint loading, and perception

► Psychophysical methods are often used in ergonomics to help prevent overexertion. ► Load acceptability and perceived effort are related to joint moment loading. ► Psychophysical methods may be useful to protect against overexertion at the biomechanical weakest link in the system. ► Psychophysics can be a powerful tool to aid in ergonomics (re-)design.