Meeting energy requirements
Bushwalking, ski touring and similar outdoor activities require sustained effort of moderate to high intensity over most of a day, with short regular breaks built in. Participants generally are moving not only their own body weight but also a pack filled with equipment and provisions. These demands are generally significantly greater than everyday demands.
Table 27.1 gives an approximate guide to daily energy requirements for men and women involved in moderate to very active work over a period of six to eight hours. Most people require some 120 to 170 kJ/kg of body weight per day when some physical activity is undertaken. This guide is adapted from the National Heart Foundation's guide to daily energy requirements, and may be used by bushwalkers on normal trips under Australian conditions (other than snow trips).