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Full-Text Articles in Medicine and Health Sciences
Muscle Cramping During A 161-Km Ultramarathon: Comparison Of Characteristics Of Those With And Without Cramping, Martin D. Hoffman, Kristin J. Stuempfle
Muscle Cramping During A 161-Km Ultramarathon: Comparison Of Characteristics Of Those With And Without Cramping, Martin D. Hoffman, Kristin J. Stuempfle
Health Sciences Faculty Publications
Background: This work sought to identify characteristics differing between those with and without muscle cramping during a 161-km ultramarathon.
Methods: In this observational study, race participants underwent body weight measurements before, during, and after the race; completed a post-race questionnaire about muscle cramping and “near” cramping (controllable, not reaching full-blown cramping), drinking strategies, and use of sodium supplementation during four race segments; and underwent a post-race blood draw for determination of serum sodium and blood creatine kinase (CK) concentrations.
Results: The post-race questionnaire was completed by 280 (74.5 %) of the 376 starters. A post-race blood sample was provided by …
Men Are More Likely Than Women To Slow In The Marathon, Robert O. Deaner, Rickey E. Carter, Michael J. Joyner, Sandra K. Hunter
Men Are More Likely Than Women To Slow In The Marathon, Robert O. Deaner, Rickey E. Carter, Michael J. Joyner, Sandra K. Hunter
Exercise Science Faculty Research and Publications
Studies on nonelite distance runners suggest that men are more likely than women to slow their pace in a marathon.
Purpose: This study determined the reliability of the sex difference in pacing across many marathons and after adjusting women's performances by 12% to address men's greater maximal oxygen uptake and also incorporating information on racing experience.
Methods: Data were acquired from 14 US marathons in 2011 and encompassed 91,929 performances. For 2929 runners, we obtained experience data from a race-aggregating Web site. We operationalized pace maintenance as the percentage change in pace observed in the second half of the marathon …