TRACK AND FIELD
Ever since Mexico City was selected five years ago as the site of the 1968 Olympics, doctors and coaches have been speculating about what the 7,350-ft. altitude will do to athletes' health and performances. With the Olympics still a month away, competing nations are trying hard to acclimatize their stars to thin air. The Russians are practicing in Mexico, the French team is going through its paces in the Pyrenees and the West Germans are heading for a training camp in Flagstaff, Ariz. It appears that there is little to worry about. Last week at Echo Summit, Calif,...