Rule of Thirds - Shows the subject on one of the intersections rather than in the middle of the picture.
Leading Lines - All the lines in the picture demonstrate lines leading somewhere.
Repetition - Shows the repeating pattern of the students working out.
Worm's Eye View - Shows a different angle from down low and some place that we don't usually see.
Filling The Frame - Shows the distress on the subjects face up close.
Framing - The pole is framing the subject showing only part of his face.
Bird's Eye View - Shows a new view from a higher place on a subject down low.
Selective Focus - Focuses solely on the subject and blurs out the rest of the background.
Center of Interest - You can clearly tell who the focus is in the photo and who the center of interest it.