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. 2011 Nov 16;6(11):e27993. doi: 10.1371/journal.pone.0027993

Figure 3. Relation between daily life physical activities and exercise capacity with the New York Heart Association functional class.

Figure 3

Mean number of daily steps (panel A), mean daily energy expended during physical activities inducing a metabolic demand >3 METs (panel B), mean daily duration of physical activities inducing a metabolic demand >3 METs (panel C), and six-minute walk test (6MWT) distance (panel D) in healthy control subjects (CTRL; open bars) and in patients with pulmonary arterial hypertension in New York Heart Association (NYHA) functional class II (dark bars) and III (grey bars). Values are mean (SD). * p<0.05 and † p<.001 vs. CTRL; ‡ p<0.001 vs NYHA II. Figure legend: n, number; kcal, kilocalories; min, minute; m; meter.