Assessment of Load Manual Lifting among Shelf-Stoking Workers in Chain Stores: A Cross-Sectional Study
Table 4
Comparison of the median of the variable lifting index (VLI) in workers with/without symptoms in different body regions during 7 days prior to the study (n = 101).
Body region
VLI
P value†
With symptom
Without symptom
Median (IQR)
Median (IQR)
Neck
1.544 (1.378, 3.270)
1.378 (0.644, 1.724)
0.164
Shoulders
2.110 (0.565, 3.280)
1.378 (0.852, 1.724)
0.632
Elbows
1.451 (1.013, 2.101)
1.378 (0.781, 1.724)
0.15
Wrists/hands
1.146 (0.688, 2.383)
1.388 (0.816, 1.724)
0.73
Upper back
1.671 (0, 1.006)
1.378 (0.712, 1.724)
0.485
Lower back
0.501 (0.370, 1.454)
1.398 (1.146, 1.724)
0.005
Hips/thighs††
—
—
—
Knees
1.705 (0.725, 2.472)
1.378 (0.852, 1.721)
0.097
Ankles/feet
1.006 (0.453, 1.685)
1.398 (0.937, 1.724)
0.137
Variable lifting index, Interquartile range, †Mann–Whitney U test, ††Missing data.