Home run production in baseball stimulated by steroidsThe use of steroids by a Major League Baseball slugger can produce only modest improvements in muscle mass and bat-and-ball speed but has the ability to boost home run production by as much as 50 percent.

This finding was revealed by a study by Tufts University physicist Roger Tobin, a specialist in condensed matter physics with a long-time interest in the physics of baseball.

Tobin remarked that the home run explosion coincides with the dawn of the “steroid era” in sports in the mid-1990s and dropped significantly when Major League Baseball instituted steroid testing.