This special issue of the IJSB contains papers of the invited keynote addresses on topics of biomechanics that were scheduled for presentation at the Science in Winter Sports Conference. The authors are internationally recognized for their research competence and scholarly achievements in the biomechanical aspects of winter sports. The Conference represented the pre-Olympic scientific meeting held in conjunction with the 1988 Winter Olympic Games. The IOC Medical Commission was an official sponsor of the Conference, which indicates the commission's special interest in promoting biomechanics and sports physiology as essential elements in programs to improve sports performance. This represents the best alternative to the destructive effects of doping and drug use as a means of improving sports skills.