Escudero CA, et al. - Among 66 adolescent female patients with anorexia nervosa (AN) and 21 adolescent female control subjects, researchers studied exercise capacity and ventricular function during exercise. Using an incremental step protocol, participants who exercised to volitional fatigue on a semisupine ergometer were retrospectively studied. According to findings, patients with AN had decreased exercise capacity, and peak hemodynamic response and ventricular function were also diminished in these patients. In adolescent patients with AN, they showed a normal pattern of response of systolic ventricular function to exercise. Findings suggested an independent association of body mass index percentile, age, peak oxygen consumption, and peak cardiac output with exercise duration.