Use graphics to highlight patterns in your data that may not be immediately evident in your text. Figure 3 displays at a glance the effects of exercise on heartbeat in an experiment to study energy expenditure in a partial gravity environment, such as an orbiting space station.
Steady-state energy consumption is achieved after approximately two minutes of constant
and consistent exercise. During the first two minutes of exercise, a "ramp-up" pattern is seen, as
shown in Figure 3.
