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Table 3 Number of workers needed to counterbalance physical workload for each municipality zone (n = 97)

From: Comparison of physical workload and physical work capacity among municipality cleaners in Shiraz to determine number of workers needed to counterbalance physical workload

Municipality zone Total number of workers in each zone Number of the participant in each zone a PWC (kcal min−1) Energy expenditure
(kcal min−1)
Number of participants with energy expenditure higher than PWC Number of workers needed b Percentage of required workers c
M SD M SD
1 200 11 4.04 0.84 3.67 1.80 4 1.55 14.09
2 194 11 5.39 1.54 4.04 0.76 2 0.63 5.73
3 148 8 3.96 0.67 4.06 0.30 5 0.87 10.88
4 197 11 4.41 1.06 4.49 1.08 6 2.38 21.64
5 148 9 3.7 0.55 3.85 1.08 5 1.16 12.89
6 110 7 4.2 0.33 5 1.05 5 1.63 23.29
7 185 12 3.92 0.97 3.9 0.61 6 1.12 9.33
8 130 8 4.37 0.96 5.08 0.98 6 1.56 19.50
9 111 6 4.90 1.77 3.67 1.80 2 0.29 4.83
10 134 8 4.45 0.78 3.84 0.30 1 0.26 3.25
11 97 6 3.79 0.92 3.72 0.184 3 0.62 10.33
Total 1654 97 4.3 1.09 4.12 1.01 45 12.08 12.45
  1. c = (b ÷ a) × 100
  2. PWC, Physical Work Capacity