Sports scientist, professional fitness coach, and Director of Sports Science for the National Soccer Coaches Association of Canada, Richard Bucciarelli, delivers the second half of 'Heart Rate Responses to Small-Sided Soccer Games', with an on-field session examining the intensity of 1-versus-1 to 4-versus-4 soccer games.  A special thanks goes out to the SC Toronto 2003 OPDL Boys, who participated in the session.