Reliability of Function Tests for People With Back Pain.

"First day: Participants undertook 6-minute walk test. There was a 30-minute interval between the first and second test, when the patient was asked to rest. During the resting period, they respond a pain intensity, functional capacity and physical activity level questionnaire.~Second day: the participants repeated the test and questionnaires."

"First day: After the second 6-minute walk test the participants perform the 10-meter walk test, the test must be performed three times with a 30-second interval, at the end the average test velocity.~Second day: the participants repeated the test."

At the end of the tests the participants perform the 30 Second Sit to Stand Test on the first and second day.