Scientific Progress or Regress in Sports Physiology?

2016 ◽  
Vol 11 (8) ◽  
pp. 1106-1110
Author(s):  
Dieter Böning

In modern societies there is strong belief in scientific progress, but, unfortunately, a parallel partial regress occurs because of often avoidable mistakes. Mistakes are mainly forgetting, erroneous theories, errors in experiments and manuscripts, prejudice, selected publication of “positive” results, and fraud. An example of forgetting is that methods introduced decades ago are used without knowing the underlying theories: Basic articles are no longer read or cited. This omission may cause incorrect interpretation of results. For instance, false use of actual base excess instead of standard base excess for calculation of the number of hydrogen ions leaving the muscles raised the idea that an unknown fixed acid is produced in addition to lactic acid during exercise. An erroneous theory led to the conclusion that lactate is not the anion of a strong acid but a buffer. Mistakes occur after incorrect application of a method, after exclusion of unwelcome values, during evaluation of measurements by false calculations, or during preparation of manuscripts. Co-authors, as well as reviewers, do not always carefully read papers before publication. Peer reviewers might be biased against a hypothesis or an author. A general problem is selected publication of positive results. An example of fraud in sports medicine is the presence of doped subjects in groups of investigated athletes. To reduce regress, it is important that investigators search both original and recent articles on a topic and conscientiously examine the data. All co-authors and reviewers should read the text thoroughly and inspect all tables and figures in a manuscript.

2007 ◽  
Vol 19 (4) ◽  
pp. 437-443 ◽  
Author(s):  
Marcelo Park ◽  
Danilo Teixeira Noritomi ◽  
Alexandre Toledo-Maciel ◽  
Luciano Cesar Pontes de Azevedo ◽  
Vladimir Ribeiro Pizzo ◽  
...  

2009 ◽  
Vol 24 (4) ◽  
pp. 484-491 ◽  
Author(s):  
Marcelo Park ◽  
Alexandre Toledo Maciel ◽  
Danilo Teixeira Noritomi ◽  
Luciano Cesar Pontes de Azevedo ◽  
Leandro Utino Taniguchi ◽  
...  

Clinics ◽  
2006 ◽  
Vol 61 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Marcelo Park ◽  
Luciano Cesar Pontes Azevedo ◽  
Alexandre Toledo Maciel ◽  
Vladimir Ribeiro Pizzo ◽  
Danilo Teixeira Noritomi ◽  
...  

2020 ◽  
Author(s):  
Bulent Gucyetmez ◽  
Filiz Tuzuner ◽  
Hakan Korkut Atalan ◽  
Ugur Sezerman ◽  
Kaan Gucyetmez ◽  
...  

Abstract Background: To determine the effect of chloride on the acid-base status, four approaches are currently used: 1) accepted ranges of serum chloride values; 2) chloride corrections, such as chloride deficiency/excess and chloride modification; 3) the Cl/Na ratio; and 4) the sodium- chloride difference, such as base-excess chloride. However, these approaches are governed by different concepts, and they can evaluate the effects of chloride on the acid-base status differently. Our aim is to investigate which approach to the evaluation of the effect of chloride is the best.Methods: In this retrospective cohort study, 2529 critically ill patients who were admitted to the tertiary care unit were evaluated between 2011 and 2018. Patient characteristics and blood gas parameters at the ICU admission and outcomes were recorded. The effects of chloride on the acid-base status according to each evaluative approach were validated by the standard base excess and apparent strong ion difference. To compare approaches, kappa and Bland-Altman tests and a linear regression model were used. Results: In the linear regression model for all patients, only base-excess chloride in all the chloride evaluation approaches was significantly related to the standard base excess. In the subgroup, the correlation and limits of agreement between base-excess chloride and the standard base excess were the strongest (r2=0.92 p<0.001 bias: 0.5mmol/L). Conclusions: For the evaluation of the effect of chloride on the acid-base status, base-excess chloride is a better approach than accepted ranges of serum chloride values, chloride corrections and the Cl/Na ratio.


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