The Importance of the Double Product in the Six-Minute Walk Test to Predict Myocardial Function

Figure 3

(a) Relationship between the age of the patients and the distances achieved in the 6MWT

(b) Relationship between the distance of the 6MWT and the left ventricular ejection fraction

(c) Relationship between the average growth of the double product during one meter of walking and the ejection fraction of the left ventricle

(d) Relationship between the average growth of a dual product during one meter of walking and the age of the patients