Define Vigorous or vigorously active lifestyles - physical activity?

These people engage regularly in strenuous work or in strenuous leisure activities for several hours. Examples are women with non-sedentary occupations who swim or dance an average of two hours each day, or non-mechanized agricultural labourers who work with a machete, hoe or axe for several hours daily and walk long distances over rugged terrains, often carrying heavy loads. Other examples of vigorously active occupations include rickshaw pullers, mine workers, coolies etc.