scholarly journals Marathon running transiently depletes the myocardial lipid pool

2020 ◽  
Vol 8 (17) ◽  
Author(s):  
Vincent L. Aengevaeren ◽  
Martijn Froeling ◽  
Sandra Berg‐Faay ◽  
Melissa T. Hooijmans ◽  
Jithsa R. Monte ◽  
...  
Keyword(s):  
Marathon Running ◽  
Lipid Pool

Thermoregulatory responses during competitive marathon running

1977 ◽  
Vol 42 (6) ◽  
pp. 909-914 ◽  
Author(s):  
M. B. Maron ◽  
J. A. Wagner ◽  
S. M. Horvath
Keyword(s):  
Skin Temperature ◽  
Marathon Running ◽  
Heat Illness ◽  
Mean Skin Temperature ◽  
Total Water ◽  
Water Losses ◽  
Thermoregulatory Responses ◽  
Marked Disparity ◽  
Skin Temperatures ◽  
Cool Conditions

To assess thermoregulatory responses occuring under actual marathon racing conditions, rectal (Tre) and five skin temperatures were measured in two runners approximately every 9 min of a competitive marathon run under cool conditions. Race times and total water losses were: runner 1 = 162.7 min, 3.02 kg; runner 2 = 164.6 min, 2.43 kg. Mean skin temperature was similar throughout the race in the two runners, although they exhibited a marked disparity in temperature at individual skin sites. Tre plateaued after 35--45 min (runner 1 = 40.0--40.1, runner 2 = 38.9--39.2 degrees C). While runner 2 maintained a relatively constant level for the remainder of the race, runner 1 exhibited a secondary increase in Tre. Between 113 and 119 min there was a precipitous rise in Tre from 40.9 to 41.9 degrees C. Partitional calorimetric calculations suggested that a decrease in sweating was responsible for this increment. However, runner 1's ability to maintain his high Tre and running pace for the remaining 44 min of the race and exhibit no signs of heat illness indicated thermoregulation was intact.

Effect of Marathon Running on Total and Free Serum Prostate-Specific Antigen Concentrations

2003 ◽  
Vol 127 (3) ◽  
pp. 345-348 ◽  
Author(s):  
Alexander Kratz ◽  
Kent B. Lewandrowski ◽  
Arthur J. Siegel ◽  
Patrick M. Sluss ◽  
Kelly Y. Chun ◽  
...  
Keyword(s):  
Prostate Specific Antigen ◽  
Specific Antigen ◽  
Physical Exertion ◽  
The United States ◽  
Marathon Running ◽  
Reliable Determination ◽  
Free Psa ◽  
Sporting Event ◽  
Exercise Induced ◽  
Total Psa

Abstract Context.—Prostate-specific antigen (PSA) is an important tumor marker for the most frequently diagnosed cancer in the United States. A major limitation of this marker is falsely elevated results in patients who are found not to have prostate cancer. The effects of vigorous physical exertion on PSA concentrations are controversial. Objective.—To determine the effects of marathon running on PSA levels. Design.—Measurement of total and free PSA levels in the sera of participants in a marathon before and within 4 and 24 hours after the race. Results.—None of the participants had elevated total PSA levels before the race. Although we found no statistically significant changes in average total or free PSA concentrations at either time point, after the marathon, 2 (11%) of 18 runners had total PSA concentrations outside the standard reference range. Changes in total PSA levels did not correlate with age or prerace PSA concentrations. Free PSA levels were not statistically significantly changed after the race and did not allow a reliable determination of exercise-induced PSA elevations. Conclusions.—Although it may not be necessary for men to abstain from exercise involving running before blood draws for PSA analysis, elevated PSA concentrations may be observed in some individuals after participation in a major sporting event. In these cases, repeat measurements should be considered at a time significantly removed from such exercise.

Cardiac Biomarkers Following Marathon Running: Is Running Time a Factor for Biomarker Change?

2020 ◽  
pp. 1-8
Author(s):  
Natthapon Traiperm ◽  
Rungchai Chaunchaiyakul ◽  
Martin Burtscher ◽  
Hannes Gatterer
Keyword(s):  
Cardiac Troponin ◽  
Troponin T ◽  
Transient Increase ◽  
Cardiac Biomarkers ◽  
Quadratic Model ◽  
Curvilinear Relationship ◽  
Marathon Running ◽  
Cardiac Troponin T ◽  
Running Time ◽  
Marathon Race

Purpose: Plasma N-terminal pro-B-type natriuretic peptide (NT-proBNP) and cardiac troponin T levels show a transient increase after marathon running. The aim of this study was to investigate whether running duration influences the patterns of changes in cardiac biomarkers. Methods: Twenty participants with fast and slow finishing times were included in the study. Blood samples were taken before the marathon race, immediately after, and 24 hours after the race. Samples were analyzed for NT-proBNP and cardiac troponin T concentration. Furthermore, a complete blood cell count was performed. Results: After the marathon race, the fast and slow runners showed similar changes of NT-proBNP and cardiac troponin T (ie, a transient increase). Curve estimation regression analysis showed a curvilinear relationship (quadratic model) between running times and NT-proBNP increments immediately after the race, with less of an increase in the very fast and the very slow runners (r2 = .359, P = .023). NT-proBNP increments immediately after the race were correlated to the decline 24 hours after the marathon (r = −.612, P = .004). Conclusions: This study indicates that NT-proBNP release immediately after marathon running varies in a curvilinear fashion with running time. It is speculated that low NT-proBNP release is associated with training adaptation in most elite runners and the relatively low cardiac stress in the slowest (but experienced) runners. The combination of less adaptation and relatively large cardiac wall and metabolic stress may explain the highest NT-proBNP values in runners with average running times. In addition, NT-proBNP decrements 24 hours after the race depend primarily on the values reached after the marathon and not on running time.

scholarly journals Rectal temperature after marathon running.

1985 ◽  
Vol 19 (4) ◽  
pp. 192-195 ◽  
Author(s):  
R J Maughan ◽  
J B Leiper ◽  
J Thompson
Keyword(s):  
Rectal Temperature ◽  
Marathon Running

Effects of marathon running on plasma total homocysteine concentrations

2005 ◽  
Vol 15 (2) ◽  
pp. 134-139 ◽  
Author(s):  
J.T. Real ◽  
A. Merchante ◽  
J.L. Gómez ◽  
F.J. Chaves ◽  
J.F. Ascaso ◽  
...  
Keyword(s):  
Marathon Running ◽  
Total Homocysteine ◽  
Plasma Total Homocysteine

scholarly journals Marathon Map and its Utilization in City Tourism

2019 ◽  
Vol 1 ◽  
pp. 1-2
Author(s):  
Xiaoyan Liu ◽  
Cheng Ye ◽  
Shuran Zhang
Keyword(s):  
Content Analysis ◽  
Annual Report ◽  
Marathon Running ◽  
Quantitative Content Analysis ◽  
Design Elements ◽  
Additional Information ◽  
Marathon Race ◽  
Quantitative Content ◽  
City Tourism ◽  
The City

<p><strong>Abstract.</strong> Marathon running has become an obsession in China, with 22 marathon races in 2011 increasing to 400 in 2017. Based on the Marathon annual report in 2017, marathon races will increase to above 1900 in 2020. More and more Chinese are traveling around the country to participate marathon races, which brings tremendous opportunities for the host cities, specifically for city tourism. A well-designed marathon map can not only help runners to learn detailed information for the races, but also help the tourists to learn natural and historical spots in the city. However, marathon maps and their designs are not examined in respect to cartography.</p><p>This study focused on full marathon race maps, collected 200 maps officially published by marathon organizers, inventoried the race information included in the maps, explored how many of these maps showing natural and historical scenic spots along the race, and analyzed common design elements of the maps using Quantitative Content Analysis (QCA), see table1. The goal of this study was to determine if the maps featured only the races or if they provided additional information to encourage tourist activities. A well designed marathon map can help both to the implementation of a race and to the creation of a sense of city.</p>

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