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. 2021 Sep 21;2:e12. doi: 10.1017/wtc.2021.9

Table 2.

Mean ± standard deviation values of the overall lumbar extensor 90th percentile (P) and 50th percentile (M), expressed as a percentage of the MVC

Activity P [ Inline graphic ] M [ Inline graphic ]
noExo XoLift XoHar noExo XoLift XoHar
Lifting 58 Inline graphic 15 38 Inline graphic 8 37 Inline graphic 6 35 Inline graphic 11 20 Inline graphic 8 21 Inline graphic 6
Carrying 29 Inline graphic 7 21 Inline graphic 5 25 Inline graphic 7 20 Inline graphic 7 13 Inline graphic 4 18 Inline graphic 7
Lowering 43 Inline graphic 13 30 Inline graphic 9 30 Inline graphic 6 29 Inline graphic 6 18 Inline graphic 5 17 Inline graphic 6

Note: Each row reports the values obtained during the execution of the three different activities (lifting, carrying, and lowering).