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Table 2 Characteristics of the population stratified by age group and gender

From: Reference values for isometric muscle force among workers for the Netherlands: a comparison of reference values

Male 20-59 20-29 30-39 40-49 50-59
Age 41.7(11) 25.2(3) 33.6(3) 44.9(3) 54.1(3)
Height 182.1(8) 182.0(8) 181.4.6(8) 183.5(8) 181.2(7)
Weight 80.8(12) 74.3(10) 80.6(13) 82.4(10) 82.4(14)
BMI 24.4(4) 22.4(3) 24.4(4) 24.4(3) 25.1(4)
DOT 1 18.9 10.0 22.0 25.4 15.4
DOT 2 44.3 33.3 24.3 46.0 60.0
DOT 3 22.9 43.3 34.1 12.7 16.9
DOT 4 13.9 13.3 19.5 15.9 7.7
Female 20-59 20-29 30-39 40-49 50-59
Age 40.2(10) 25.9(3) 34.8(3) 44.3(3) 53.6(3)
Height 170.1(7) 172.5(6) 170.8(8) 170.0(7) 167.4(7)
Weight 68.0(11) 68.1(13) 68.2(9) 68.0(11) 67.8(12)
BMI 23.4(3) 22.9(4) 23.5(3) 23.4(3) 24.1(4)
DOT 1 21.2 14.0 21.1 12.7 43.6
DOT 2 42.5 41.9 33.4 54.0 33.3  
DOT 3 35.3 44.2 45.5 30.2 23.1
DOT 4 1 0 0 3.1 0
  1. Age, Height, Weight and BMI expressed in mean(sd) and DOT is expressed in percentage of the population.
  2. DOT; Dictionary of Occupational Titles. DOT 1 = sedentary, DOT 2 = light, DOT 3 = medium, DOT 4 = heavy/very heavy.