Related Experiment Video
Updated: Jun 25, 2025
06:52
An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
Published on: May 26, 2020
7.9K
Evolution of Athletic Records: Statistical Effects versus Real Improvements
Daniel Gembris1, John G Taylor2, Dieter Suter3
1University of Heidelberg in Mannheim , Germany.
Journal of Applied Statistics
|May 31, 2024
Summary
Athletic records improve over time, but this study shows true performance gains occur in only 20-50% of disciplines. New records don't always mean better athletic capabilities.
Area of Science:
- Sports Science
- Biophysics
- Statistics
Background:
- Athletic records consistently improve, creating an illusion of perpetual advancement in human capabilities.
- Assessing the significance of new records requires evaluating the magnitude of improvement, not just the record itself.
Purpose of the Study:
- To derive formulae for analyzing athletic record trends.
- To differentiate between genuine performance improvements and statistical artifacts in athletic records.
- To apply record estimation to predict human biological limits.
Main Methods:
- Development of mathematical formulae to analyze monotonic record improvement.
- Analysis of German championships and world athletic records.
- Application of record estimation to human body length prediction.
Main Results:
- Formulae demonstrate that records can improve even with constant athletic performance.
- True performance improvements were identified in 20-50% of analyzed athletic disciplines.
- The record estimation approach was applied to predict human maximum body length.
Conclusions:
- Athletic record improvement is not solely indicative of enhanced athlete capabilities.
- A significant portion of record advancements are statistical rather than performance-based.
- The developed methodology offers insights into performance trends and biological limits.
Related Concept Videos
01:52Regression Toward the Mean
6.3K
Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
6.3K
01:27Exercise and Muscle Performance
1.4K
Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
1.4K
02:20Longitudinal Research
11.9K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
11.9K
02:05Gene Evolution - Fast or Slow?
7.1K
The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
In contrast, regions which code...
7.1K
01:50Statistical Significance
20.1K
Once data is collected from both the experimental and the control groups, a statistical analysis is conducted to find out if there are meaningful differences between the two groups. A statistical analysis determines how likely any difference found is due to chance (and thus not meaningful). In psychology, group differences are considered meaningful, or significant, if the odds that these differences occurred by chance alone are 5 percent or less. Stated another way, if we repeated this...
20.1K
02:35What is Evolutionary History?
36.4K
Scientists record evolutionary history by analyzing fossil, morphological, and genetic data. The fossil record documents the history of life on Earth and provides evidence for evolution. However, both fossil and living organisms offer evidence that outlines Earth’s evolutionary history.
36.4K