(1) Background: We investigated the age of swimming champions in all strokes and race distances in World Championships (1994⁻2013) and Olympic Games (1992⁻2012); (2) Methods: Changes in age and swimming performance across calendar years for 412 Olympic and world champions were analysed using linear, non-linear, multi-level regression analyses and MultiLayer Perceptron (MLP); (3) Results: The age of peak swimming performance remained stable in most of all race distances for world champions and in all race distances for Olympic champions. Longer (, 200 m and more) race distances were completed by younger (-20 years old for women and -22 years old for men) champions than shorter (, 50 m and 100 m) race distances (-22 years old for women and -24 years old for men). There was a sex difference in the age of champions of -2 years with a mean age of -21 and -23 years for women and men, respectively. Swimming performance improved in most race distances for world and Olympic champions with a larger trend of increase in Olympic champions; (4) Conclusion: Swimmers at younger ages (<20 years) may benefit from training and competing in longer race distances (, 200 m and longer) before they change to shorter distances (, 50 m and 100 m) when they become older (>22 years).
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http://dx.doi.org/10.3390/sports4010017 | DOI Listing |
Objective: To investigate the role that foot-strike hemolysis plays in sports-related anemia in marathon and ultramarathon runners.
Data Sources: PubMed, Embase, Cochrane, Grey literature.
Study Selection: Inclusion criteria consisted of human studies with runners completing a sanctioned race of marathon distance or greater, with outcomes measured by pre- and post-race hematological assessments.
Respir Physiol Neurobiol
December 2024
The University of Sydney, Faculty of Medicine and Health. Susan Wakil Health Building, Western Avenue, Camperdown, NSW 2050, Australia. Electronic address:
Well-trained individuals, compared to less well-trained individuals, exhibit a lower minute ventilation (V̇) and higher end-tidal partial pressure of CO (PCO) at a given work rate. This study investigated whether such breathing adaptations seen in well-trained individuals also applied to elite long-distance runners. Forty-one long-distance runners were categorized into high (Long-High, consisting of Tokyo-Hakone College Ekiden [relay marathon] runners and Olympic athletes, n=23), or low performance-level group (Long-Low, n=18) according to their race times.
View Article and Find Full Text PDFClin J Sport Med
January 2025
Sport, Exercise Medicine and Lifestyle Institute (SEMLI), Faculty of Healthy Sciences, University of Pretoria, Pretoria, South Africa.
Objective: To determine if any gradual onset running-related injury (GORRI) was associated with any allergies, multiple allergies (allergies to animals, plants, medication), and allergy medication use.
Design: Cross-sectional descriptive study.
Setting: Two Oceans Marathons (56 km, 21.
Int J Sports Physiol Perform
December 2024
School of Sport Science, UiT The Arctic University of Norway, Tromsø, Norway.
Introduction: Women have generally lower body size and lean- to fat-mass ratio, lower maximal anaerobic power due to a lower muscle mass, and fewer fast-twitch fibers, although they can show higher resistance to fatigue or greater metabolic flexibility than men. These factors are well known and explain the sex differences in endurance sports such as distance running (10%-12%). Several of these factors-particularly the differences in body composition and skeletal-muscle characteristics-may directly impact vertical displacement and uphill performance.
View Article and Find Full Text PDFCirc Cardiovasc Qual Outcomes
December 2024
RAND Corporation, Santa Monica, CA (C.B.G., C.L.D., S.Z., M.S., L.J.M., I.P.).
Background: Differences in the quality of hospitals where Black and White patients receive coronary artery bypass grafting (CABG) surgery have been documented. We examined the contributions of physician networks to the gap.
Methods: This was a cross-sectional study of all Medicare fee-for-service Black and White patients undergoing elective CABG during 2017 to 2019; the primary care physicians and cardiologists treating them for 12 months before surgery (the patients' physician network); and CABG-performing hospitals within 100 miles of each patient.
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