Exercise capacity tests
dyspnea, fatigue
6MWT is mainly used to evaluate the severity and prognosis of heart and lung patients. The medical staff will introduce the test procedure to the patient and tell the patient to carry out the test after the patient calms down. Within 6 min, the patient began walking back and forth from the starting point. 15 s before the end of six minutes, the medical staff will inform the patient: “The test is coming to an end, please stand still when you hear stop.“ Borg grading is used after the test. 6WMT is divided into four grades according to the length of walking distance (300 m, 375 m, and 450 m as nodes). The longer the walking distance, the higher the grade. The Borg index (1–10) measures dyspnea or fatigue after a 6-minute walking test.