Figure 2. Average (± standard error) heart rate (HR, top), rating of perceived exertion (RPE, middle), and affect (FS, bottom) measurements at 10, 20 and 30 minutes of exercise for self-selected TV viewing, standardized TV viewing, and no-TV viewing conditions. * Mean affective response (FS) was significantly greater during the self-selected TV condition relative to the no TV control condition (p < 0.05)