47.5 MB (3.0 MB compressed)
3328 x 4992 pixels
28.2 x 42.2 cm ⏐ 11.1 x 16.6 in (300dpi)
MARK TURNBALL / SCIENCE PHOTO LIBRARY MARK TURNBALL / SCIENCE PHOTO LIBRARY
Running machines. Man and woman exercising on running machines in a gymnasium. The controls on these running machines can be used to adjust the incline and speed of the running surface. The screen also displays the user's heart rate and how many calories they have burned.
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