scholarly journals Virtual marathon runners hold world record

BDJ ◽  
2021 ◽  
Vol 231 (9) ◽  
pp. 541-541
Keyword(s):  
World Record ◽  
Marathon Runners

scholarly journals Performance analysis of both sex marathon runners ranked by IAAF

2018 ◽  
Vol 20 (2) ◽  
pp. 182-189
Author(s):  
Anselmo José Perez ◽  
Adilson Marques ◽  
Kamilla Bolonha Gomes
Keyword(s):  
Performance Analysis ◽  
Black Community ◽  
International Association ◽  
Lower Percentage ◽  
Economic Independence ◽  
World Record ◽  
African Countries ◽  
Marathon Runners ◽  
The World ◽  
World Records

Running a marathon has become the motivation to achieve success and economic independence for athletes, mainly from African countries. This feeling is more evident among the black community, considering that they have been presenting better results than white athletes. The objective of the study was to analyse the ranking of marathon runners around the world, in the last 15 years considering: 1) nationality; 2) best average time of the 100 best classified runners from the Top 100, Top 50, Top 25, Top 10 and Top 3. An analysis was made to the ranking available on the International Association of Athletics Federations (IAAF) website, for the 100 best world results for both sexes, focusing on records from 2000 to 2014. The analysis was subdivided into ranking groups (Top 3, 10, 25, 50 and 100), resulting in 3000 records. African runners, Kenyan and Ethiopian, dominate the male ranking representing 70% of the total of runners in Top 100, keeping this proportion up to Top 3. African runners, Kenyan and Ethiopian, dominate the male ranking representing 70% of the total of runners in Top 100, keeping this proportion up to Top 3. The same is observed for females, however with a significantly lower percentage (34%), with Japanese, Ethiopian and Kenyan (17%) and an English athlete as the world record. The average time of a marathon has been decreasing in males more than in female competitions, both in Top 3 and Top 10, however still presenting a large gap from world records. 

scholarly journals Sub 3-Hour Marathon Runners for Five Consecutive Decades Demonstrate a Reduced Age-Related Decline in Performance

2021 ◽  
Vol 12 ◽  
Author(s):  
Romuald Lepers ◽  
Amby Burfoot ◽  
Paul J. Stapley
Keyword(s):  
Athletic Performance ◽  
Endurance Performance ◽  
Age Group ◽  
World Record ◽  
Inherent Limitation ◽  
Marathon Runners ◽  
Age Related ◽  
The Mean ◽  
Marathon Performance ◽  
Low Rate

Estimation of the age-related decline in athletic performance by analyzing age-group world record performances presents an inherent limitation because the records generally belong to different individuals. Longitudinal studies describing the changes in performance with advancing age for the same individuals with a consistent training regimen are more appropriate to determine age-related changes in performance. The aim of this longitudinal study was to examine the age-related decline in running performance of sub 3-h marathoners for five consecutive calendar decades. The best marathon performances for each decade from the 1970s to the 2010s were analyzed for 40 sub 3-h runners (39 males and 1 female). The cohort mean personal best performance was 2 h 23 min ± 9 min at an age of 28.6 ± 4.7 years. The mean difference in age between the first and the last sub 3-h marathon races was 32.9 ± 1.6 years. The time difference in marathon performance between the personal best and the worst performance during the 5th decade was 26 ± 9 min, corresponding to a mean increase of 1 min 4 s per year, i.e., a decrease in running speed of 0.67 ± 0.29% per year. These results suggest that with consistent training and racing regimens, it is possible to limit the age-related decline in marathon performance to less than 7% per decade at least until 60 years of age. Further studies are required to verify if such a low rate of age-related decline in endurance performance could be maintained after 60 years of age.

Glider aims to break world record — and boost climate science

Nature ◽  
2016 ◽  
Vol 536 (7615) ◽  
pp. 134-135
Author(s):  
Declan Butler
Keyword(s):  
Climate Science ◽  
World Record

The Increased Sensitivity of Platelets to Prostacyclin in Marathon Runners

1984 ◽  
Vol 51 (03) ◽  
pp. 385-387 ◽  
Author(s):  
Clive J Dix ◽  
David G Hassall ◽  
K Richard Bruckdorfer
Keyword(s):  
Cardiovascular Disease ◽  
Endothelial Cells ◽  
Platelet Aggregation ◽  
Cyclic Amp ◽  
Adenylate Cyclase ◽  
Platelet Rich Plasma ◽  
Marathon Runners ◽  
Inhibition Of Platelet Aggregation ◽  
Increased Sensitivity ◽  
Membrane Bound

SummaryPlatelet-rich plasma was obtained 24 hr after the race ended from athletes who ran in the London marathon. The platelets were only marginally less sensitive to adrenaline than were those of non-runners using conventional aggregation tests. However, the runners’ platelets were much more sensitive to inhibition by prostacyclin, a prostaglandin synthesized by endothelial cells. It appeared that this effect was due to a greater activity in the platelets of the membrane-bound adenylate cyclase enzyme which generates intracellular cyclic AMP. Cyclic AMP production is known to be stimulated by prostacyclin and to cause the inhibition of platelet aggregation. The results indicate another possible protective effect of exercise against cardiovascular disease which is independent of the known changes in lipoprotein concentrations previously observed in athletes.

Risk Stratification for Coronary Artery Disease in Marathon Runners

2008 ◽  
Vol 4 (1) ◽  
pp. 23
Author(s):  
Stefan Möhlenkamp ◽  
Raimund Erbel ◽  
Gerd Heusch ◽  
◽  
◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Risk Stratification ◽  
Marathon Runners ◽  
Artery Disease

Descriptive statistics

2017 ◽  
Author(s):  
Andrew Gelman ◽  
Deborah Nolan
Keyword(s):  
Descriptive Statistics ◽  
Metabolic Rates ◽  
World Record ◽  
Linear Combinations ◽  
Record Times ◽  
Starting Point ◽  
Statistics Course ◽  
Scatter Plots ◽  
Economic Indexes ◽  
The Mean

Descriptive statistics is the typical starting point for a statistics course, and it can be tricky to teach because the material is more difficult than it first appears. The activities in this chapter focus more on the topics of data displays and transformations, rather than the mean, median, and standard deviation, which are covered easily in a textbook and on homework assignments. Specific topics include: distributions and handedness scores; extrapolation of time series and world record times for the mile run; linear combinations and economic indexes; scatter plots and exam scores; and logarithmic transformations and metabolic rates.

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