11.   Before trying this or any other strenuous activity, consult your physician.

12.   A ponytail is sleek and simple as well as a practical style for coping with bad weather and strenuous activities like skiing, skating or tennis.

13.   Heat cramps are muscle spasms in the abdomen, arms or legs that often follow strenuous activity.

14.   Jones has been ordered to stay away from strenuous activity for two months.

15.   Murray obviously would not be subjected to the same strenuous physical activity as his players, but concussions impact the aspects of life most people take for granted.

16.   New York City activated its emergency operations center Tuesday, and Giuliani appealed for residents to avoid strenuous activity and stay indoors near fans and air-conditioners.

17.   Not so long ago, pregnant women were almost universally warned to avoid strenuous activity.

18.   On his way to the Caribbean, the president suggested his most strenuous activities may be playing golf and snorkeling.

19.   Police reported no heat-related deaths or injuries Friday, but Mayor Rudolph Giuliani cautioned New Yorkers to take it easy and avoid strenuous activity.

20.   Some of the victims were found outside, where they apparently had been engaged in strenuous activities.