Jim Pivarnik, professor of kinesiology and epidemiology, talks about his role with the president's challenge for physical fitness on Wednesday April 17, 2013.
NIKON CORPORATION NIKON D4, f/2.8 @ 105 mm, 1/100, ISO 1250, No Flash
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Keywords:Jim Pivarnik, Kinesiology, Media Communications, president's challenge for physical fitness
