31.   Miller is riding a stationary bike and taking walks, but is unable to perform any other strenuous activity.

32.   More is known today about how strenuous activity affects his own health.

33.   Researchers have found performance improvements in laboratory tests involving sudden bursts of very strenuous activity, Terjung said.

34.   Some cities and towns in the Bitterroot Valley have had air considered so hazardous that everyone is urged to avoid any strenuous activities outdoors.

35.   The Brasilia Board of Education on Monday said public schools may cancel outdoor gym classes in favor of less strenuous activities in the shade.

36.   The program also presents Foster with a chance to prove to her husband and friends that she is as capable of strenuous physical activity as they are.

37.   These disorders can be prevented by increased fluid intake, wearing of light clothing, taking frequent baths, and avoiding strenuous physical activity during hot weather.

38.   Doctors found that his heart did not deliver enough oxygen to his body to support strenuous physical activity.