An older woman in the group, though, was not up to such strenuous activity.

This is not a good time for getting involved in strenuous activity.

It may be several weeks before you can return to strenuous activities.

You will need to avoid strenuous activity for several weeks.

Any strenuous activity could cause her to lose the baby.

Most women need to avoid strenuous activity for several weeks.

But you should avoid strenuous activity or exercise for about a week.

The horse may not be able to perform strenuous activities.

Be sure to drink plenty of water before and during any strenuous activity.