Abstract
Using the Prolonged Standing Test described in 1927, 16 young women were tested for circulatory fitness several times each, under similar conditions. The results indicate that, under constant conditions, each individual shows a definite and dependable pattern of circulatory adjustment to the change from reclining to standing and also a predictable degree of endurance in prolonged standing. The test reflects the subject''s general physical condition, showing less circulatory success when there is "poorer health," a lowered nutritional status, or physical depression due to hot weather. A distinct betterment in the ability to stand still without circulatory embarrassment was noted after a meal. The morning basal condition, on the contrary; offered a peculiarly difficult obstacle to prolonged quiet standing. These results agree in some respects but not in all with those of Schneider''s circulatory test.

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