Skeletal muscle abnormalities and exercise intolerance in older patients with heart failure and preserved ejection fraction.
Kitzman DW, Nicklas B, Kraus WE, Lyles MF, Eggebeen J, Morgan TM, Haykowsky M. Skeletal muscle abnormalities and exercise intolerance in older patients with heart failure and preserved ejection fraction. . 2014 May; 306(9):H1364-70.