81.   Others, equipped with cameras, are able to climb unsteady stairs.

82.   Patients were evaluated using numerous measures of pain, including their discomfort when walking and climbing stairs.

83.   Realizing that he had walked into the most dangerous private arsenal he had ever seen, McMaster began climbing the stairs to the second floor.

84.   She had trouble climbing stairs, and much of her time was spent with specialists undergoing tests.

85.   She walks with a limp now and winces while climbing stairs.

86.   So it came as something of a surprise to the couple when they discovered that their infant son had learned to climb stairs.

87.   Some will climb the stairs on their knees, often fulfilling a promise to carry out the painful task.

88.   That leads to back problems and makes it hard to climb stairs.

89.   The documentary shows him climbing stair after stair and later tumbling backward down a snowy mountainside to practice stopping such a fall.

90.   The lost strength largely accounts for the difficulty many elderly people have in rising from chairs, climbing stairs and carrying groceries.