Table 2 The medians and the reduction rates of (a) mean EMG and (b) peak EMG across the three exosuit conditions and the two weight-bearing conditions.
Lifting weight | Process | Median EMG under each condition (MVC%) | EMG reduction rate (%) *p < 0.05; **p < 0.01; ***p < 0.001 | ||||
|---|---|---|---|---|---|---|---|
No exo | With active exosuit | With passive exoskeleton | No device versus with active exosuit | No device versus with passive exoskeleton | |||
(a) Mean EMG | 0 kg | Bend down | 6.26 | 6.45 | 6.64 | − 3.06 | − 6.02 |
Lift up | 13.68 | 10.46 | 11.74 | 23.57 (***) | 14.17 | ||
25 kg | Bend down | 21.31 | 14.48 | 14.10 | 32.04 (***) | 33.81 (*) | |
Lift up | 29.20 | 21.08 | 24.20 | 27.81 (***) | 17.11 (*) | ||
(b) Peak EMG | 0 kg | Bend down | 24.47 | 17.79 | 26.13 | 27.30 (**) | − 6.79 |
Lift up | 38.44 | 27.27 | 32.27 | 29.05 (***) | 16.05 | ||
25 kg | Bend down | 56.00 | 38.28 | 46.29 | 31.64 (***) | 17.33 (*) | |
Lift up | 74.97 | 55.45 | 62.51 | 26.04 (***) | 16.62 (*) | ||