Clothing, Activity and Human Metabolism

Human metabolism at low and high activity with different levels of clothing

Human ActivityClothingComfort temperatureRelative air speedHeat transferred from person to surroundings
ConvectionRadiationLatent vaporTotal
(Clo)1)(oC)
(m/s)
(W)
(W)
(g/h)(W)
(W)
Sitting still Naked 28.8 < 0.1 36 38 40 27 102
30.1 0.3 47 29 40 27 102
30.7 0.5 51 24 40 27 102
31.4 1.0 57 20 40 27 102
0.5 26.2 < 0.1 36 37 42 28 102
27.4 0.3 47 28 42 28 102
27.9 0.5 50 23 42 28 102
28.5 1.0 56 19 42 28 102
1.0 23.3 < 0.1 36 35 44 30 102
24.5 0.3 45 27 44 30 102
25.0 0.5 50 22 44 30 102
25.6 1.0 55 17 44 30 102
1.5 20.7 < 0.1 36 34 46 31 102
21.8 0.3 45 26 46 31 102
22.3 0.5 50 21 46 31 102
22.8 1.0 55 16 46 31 102
Medium activity Naked 24.4 < 0.1 59 65 115 77 204
26.2 0.3 76 51 115 77 204
27.1 0.5 83 44 115 77 204
28.2 1.0 93 35 115 77 204
0.5 19.9 < 0.1 60 63 120 80 204
21.6 0.3 76 48 120 80 204
22.4 0.5 83 41 120 80 204
23.3 1.0 92 33 120 80 204
1.0 15.3 < 0.1 60 59 123 83 204
16.9 0.3 76 45 123 83 204
17.7 0.5 83 38 123 83 204
18.6 1.0 91 30 123 83 204
1.5 10.9 < 0.1 62 57 126 84 204
12.5 0.3 77 43 126 84 204
13.2 0.5 83 36 126 84 204
14.0 1.0 91 29 126 84 204
High activity Naked 22.1 0.3 107 67 192 129 306
23.4 0.5 117 60 192 129 306
24.9 1.0 130 48 192 129 306
0.5 15.7 0.3 108 64 198 133 306
16.8 0.5 119 55 198 133 306
18.2 1.0 130 44 198 133 306
1.0 9.3 0.3 110 59 202 135 306
10.4 0.5 120 51 202 135 306
11.7 1.0 131 40 202 135 306
1.5 3.2 0.3 113 56 205 137 306
4.2 0.5 122 47 205 137 306
5.4 1.0 131 37 205 137 306

1) Clo is used to measure the thermal insulation of clothes - 1 Clo = 0.155 m2K/W

  • 1 g/h = 3.67x10-5 lb/min

Related Topics

  • Physiology - Human physiology, air quality and comfort temperatures, activity and metabolic rates, health effects of carbon monoxide and more

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