If the inline PDF is not rendering correctly, you can download the PDF file here.
Steven Ungerleider is with Integrated Research Services, 66 Club Rd., Suite 370, Eugene, OR 97401. Jacqueline M. Golding is with the School of Public Health at the University of California, Los Angeles. Kay Porter and Judy Foster are with Porter/Foster Sports and Organizational Counseling, Eugene, OR.
The authors wish to acknowledge the support of Barbara Kousky of the Oregon Track Club. Appreciation is extended to Norma Jeanne Riggs and Stefan Kramer of Integrated Research Services for technical and statistical contributions to this research project. The authors would also like to acknowledge the anonymous reviewers for their useful suggestions on the revision of this manuscript. Readers may receive a copy of the survey questionnaire by writing the first author.