The whole exercise, from beginning to end, should take about two hours, with plenty of time at the start just for thinking.

The following exercise would take only a few minutes every day.

The whole exercise, they said, would take 7,475 man hours, 934 working days.

The average time taken per body worked out to six minutes, and the entire exercise took a little over four hours.

From 1 August 1938 military exercises took place across the whole training area.

This exercise will take some thought and time on your part.

These exercises take a man into his body, not away from it.

The average time per body worked out at six minutes, so that the entire exercise took a little over four hours.

Never took half an hour's exercise in his big fat life.

The last such exercise took place in the late 1980s.