geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Participation-related relative age effects in Masters swimming: a 6-year retrospective longitudinal analysis


, : Participation-related relative age effects in Masters swimming: a 6-year retrospective longitudinal analysis. Journal of Sports Sciences 29(1): 29-36

Medic and colleagues (Medic, Starkes, & Young, 2007) found that relatively younger cohorts of Masters athletes had higher participation rates and achieved higher performances compared with a relatively older cohort. Considering that Medic and colleagues' (2007) study was cross-sectional in nature, the purpose of this investigation was to employ a retrospective longitudinal study design to examine the participation rates of Masters swimmers as a function of an individual's constituent year within any 5-year age category over a period of 6 years. Using archived data from the 2003 to 2009 US Masters Short Course National Championships, swimmers' attendance was followed for a period of six consecutive years. Results indicated that a participation-related relative age effect was observed among swimmers who, over a period of 6 years, competed in either at least one championship (N = 2596; Cochran's Q₄ = 64.16, r(s) = -0.92, both P < 0.0001) or at least three championships (N = 441; Cochran's Q₄ = 47.51, r(s) = -0.91, both P < 0.0001). Overall, effect size analyses indicated that the odds of a Masters swimmer participating in the championship during the first constituent year of any 5-year age category was more than two times greater than the odds of that athlete participating during the fifth constituent year.

US$19.90

PMID: 21077002

DOI: 10.1080/02640414.2010.520726


Other references

Raffai, Gábor.; Khang, G.; Vanhoutte, P.M., 2015: Vanillin and vanillin analogs relax porcine coronary and basilar arteries by inhibiting L-type Ca2+ channels. Vanillin (VA) and vanillyl alcohol (VAA), components of natural vanilla, and ethyl vanillin (EtVA; synthetic analog) are used as flavoring agents and/or as additives by the food, cosmetic, or pharmaceutic industries. VA, VAA, and EtVA possess anti...

Kemmer F.W.; Berger M.; Herberg L.; Koschinsky T.; Gries F.A., 1978: Skeletal muscle metabolism in zucker fatty rats demonstration of generalized insulin resistance. European Journal of Clinical Investigation 8(5): 348

Belka, T.; Horacek, L., 1995: Abundance and population density of the tawny owl Strix aluco in Podorlicko N-E Bohemia. Buteo, 7: 19-26

Gingerich, Philip D., 1995: Sexual dimorphism in earliest Eocene Cantius torresi. Cantius torresi is a 1,000-1,300 gm adapoid primate from the earliest Wasatchian land-mammal age in North America. Twelve specimens are now known, which preserve most upper and lower cheek teeth and a few fragmentary postcranial remains. Three spe...

Voorhoeve, R.; Moll, F.L.; de Letter, J.A.; Bast, T.J.; Wester, J.P.; Slee, P.H., 1996: Primary aortoenteric fistula: report of eight new cases and review of the literature. Primary aortoenteric fistula, a direct communication between the aorta and the intestinal tract, is a rare cause of gastrointestinal hemorrhage. Eight patients who were all treated at one hospital are described, followed by a review of all surgica...

Thiele, K.; Buttgereit, F.; Huscher, D.; Zink, A., 2005: Current use of glucocorticoids in patients with rheumatoid arthritis in Germany. Objective. To describe the current use of glucocorticoids in German patients with rheumatoid arthritis (RA). Methods. We analyzed clinical and patient-derived data from 10,068 outpatients with RA from the national database of the German Collaborat...

Ji, Y.; Powers, S.K.; Brown, J.T.; Miner, R., 1996: Characterization of the tumor invasion area in the rat intracerebral glioma. Tumor cell invasion surrounding intracerebrally implanted tumors in rats was studied by comparing the results of cerebral microangiography, fluorescence imaging of blood-brain barrier (BBB) disruption and histopathology. Each comparison was on sub...

Tavassoli, M., 1984: Marrow adipose cells and hemopoiesis: an interpretative review. Experimental Hematology 12(2): 139-146

Morriss, F.H.; Brumley, G.W., 1974: Erythrocyte 2,3-diphosphoglycerate concentrations in umbilical venous blood from normal and meconium-stained neonates. American Journal of Obstetrics and Gynecology 119(7): 988-990

Pernworth, P., 1950: The pathology of jaundice. Review of Gastroenterology 17(12): 1145-1150