Table 4 Measurement units according to the different studies

Hours

 Hours/week

3 [29, 32, 33]

 Hours/typical day

1 [34]

 Hours/day

2 [28, 29]

 Hours/workday

1 [29]

 Hours/working time

1 [29]

 Hours/nonworking time

1 [29]

 Hours/weekend

1 [29]

Minutes

 Minutes/8 h workday

5 [23, 24, 30, 38, 40]

 Minutes/16 h workday

1 [40]

 Minutes/shift

1 [26]

 Minutes/day

3 [24, 25, 31, 35]

 Minutes/weekday

1 [39]

 Minutes/workday

3 [24, 37, 39]

 Minutes/work hours

1 [25]

 Minutes/day on nonworkdays

1 [25]

 Minutes/weekend

1 [39]

METs

 Met/working day

1 [36]

 Met/weekend

1 [36]

Proportion (%)

 Proportion of time spent sitting during work

1 [41]

 Proportion of workday sitting

1 [25]

 Proportion of total sitting work hours

2 [27, 38]

 Proportion total sitting all days

1 [27]