3.6. Normal daily activity pattern
A record of the activity pattern of each mother was obtained for
the whole 24 hours on each of five consecutive days. This was done using the
activity-diary technique first described by DURNIN (1952), whereby a detailed
minute-by-minute record was procured of all the separate activities of the day.
These were then subdivided in large categories - bed, sitting, standing,
housework, walking - so that comparisons could be made of any changes in the
total time spent in these activities as pregnancy progressed.
The activity-diary was filled in by the mothers themselves in
Scotland and in Holland; in the three developing countries this was done by a