1. Women should not start a new sport or exercise while pregnant,
but may continue previous activities.
2. Activities which require a fine sense of balance to preserve the
woman's personal safety (horseback riding, downhill skiing, etc.) are
inadvisable because pregnant women are inherently and unavoidably
unstable in their balance.
3. Because of pregnancy-induced changes in the supporting cartilage
and ligaments (softening), the joints are relatively unstable. Thus,
activities which place great stress on any joints are unwise.
