Impact of Body Weight on Energy Expenditure

The impact of body weight on energy expenditure while walking at various speeds is illustrated in Figure 12-3, while Figure 12-4 describes how body weight affects the total increase in energy expenditure caused by

DIETARY REFERENCE INTAKES

800 700 600 500 400 300 200 100 0

34 mph

160 140 120 100 80 60 40 20 0

34 mph

FIGURE 12-2 Relationships of energy expenditure and walking/jogging speeds. The upper panel shows the rate of energy expenditure as a function of walking/ jogging speed. The middle panel shows the energy expended by a 70-kg man (o) and by a 57-kg woman (□) while walking/jogging 1 h at various speeds. The lower panel shows the increase in daily energy expenditure induced by walking/jogging 1 m at various speeds for a 70-kg man (•) and a 57-kg woman (■).

PHYSICAL ACTIVITY

PHYSICAL ACTIVITY

4 mph

3 mph 2 mph

90 100 110 120 130

5 mph

4 mph

3 mph 2 mph

90 100 110 120 130

Body Weight (kg)

FIGURE 12-3 Impact of body weight on energy expenditure while walking at speeds of 2, 3, 4, or 5 mph.

walking one mile at various speeds. Figures 12-5 for men and 12-6 for women show how body weight influences how far and for how many minutes adults must walk at speeds of 2, 3, 4, or 5 mph (or to engage in activities rated as MET = 2.5, 3.3, 4.5, or 8.0) to raise the PAL level by 0.10. These figures also describe the effect of more demanding physical activity,

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