Page 22 - FOOD & HUMAN NUTRITION F5

Answers for Exercise 3.2

Energy
FOR ONLINE READING ONLY
Time Energy cost for
Activity used expenditure Time × energy each
× weight
(minutes) (kcal) activity
(kcal)

Bed making 5 0.057 0.057 × 5 × 70 19.95
Ironing clothes 15 0.063 0.063 × 15 × 70 66.15
Shining shoes 5 0.044 0.044 × 5 × 70 15.40

Sweeping 5 0.054 0.054 × 5 × 70 18.90
Showering 15 0.047 0.047 × 15 × 70 49.35

Driving 90 0.056 0.056 × 90 × 70 352.80
Walking upstairs 30 0.254 0.254 × 30 × 70 533.40
Walking downstairs 30 0.0977 0.0977 × 30 × 70 205.17
Walking normal 70 0.069 0.069 × 70 × 70 338.10

Sitting and eating 30 0.020 0.020 × 30 × 70 42.00
Sitting and writing 170 0.027 0.027 × 170 × 70 321.30

Sitting and reading 140 0.017 0.017 × 140 × 70 166.60
Sitting normal 30 0.017 0.017 × 30 × 70 35.70
Washing and
dressing 10 0.038 0.038 × 10 × 70 26.60
Attending calls 10 0.028 0.028 × 10 × 70 19.60
Conversing 35 0.027 0.027 × 35 × 70 66.15

Class work 270 0.025 0.025 × 270 × 70 472.50
Sleeping 480 0.017 0.017 × 480 ×70 571.20
Total energy cost for activities (TECA) 3,318.87

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