The 6MWT is the distance walked in a period of 6 minutes. This test was initially considered an endurance measure but more recently has been considered a broader measure of mobility and function.The 6MWT was performed in long hall ways of the participating facilities. Participants walked at a “comfortable pace,” were discouraged from talking during the test, and were notified of each passing minute. If participants were distracted or stopped walking, they were prompted to “keep walking” and were advised of the time remaining.