Fig. 5

Subjective ratings on NASA-TLX items across the three back exosuit conditions. MD: mental demand; PD: physical demand; TD: temporal demand; P: performance, higher score for less successful; E: effort; F: and frustration.

Subjective ratings on NASA-TLX items across the three back exosuit conditions. MD: mental demand; PD: physical demand; TD: temporal demand; P: performance, higher score for less successful; E: effort; F: and frustration.