Humeral hypertrophy in response to exercise

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Jones-HH; Priest-JD; Hayes-WC; Tichenor-CC; Nagel-DA J-Bone-Joint-Surg-Am. 1977 Mar; 59(2): 204-8 We compared roentgenograms of the jumeri of a group of professional tennis players and showed that there was pronounced hypertrophy of bone on the playing side. The cortical thickness on that side was greater by 34.9 per cent in men and 28.4 per cent in women compared with the control side. This represents a highly significant hypertrophy of bone in response to exercise.