Mucking out two full shavings beds, including sweeping and emptying wheelbarrow: 168 kcal
Forking back/tidying the muckheap for 15 minutes: 99 kcal
Digging out the corners/sides of a sand and rubber 20x40m school before harrowing (16 minutes): 88kcal
Walking a showjumping course (single phase, 12 fences): 42 kcal
Warming up and jumping a single-phase showjumping course, as above: 148kcal
Half an hour’s riding on the flat: 205 kcal
Walking a cross-country course (45 minutes): 195 kcal
This number of calories is per approximation and depends on various factors such as metabolism and weight.
Source: Horse&Hound