The quality of performance during international competitions such as the Olympic Games and various world championships is often judged by the number of world records attained. The simple fact that world records continue to improve is evidence that sports performance is progressing. Does this also mean that athletes are improving? Is the continual progression of world-record performances evidence that contemporary athletes are superior to the athletes who performed in the past? Technological developments may obscure insight into the athletic enhancement made by athletes over the years. This commentary tries to separate technological and athletic enhancement in the progression of world records by the use of a power balance model.
Search Results
You are looking at 1 - 10 of 49 items for :
- Author: Jos de Koning x
- International Journal of Sports Physiology and Performance x
- Refine by Access: All Content x
World Records: How Much Athlete? How Much Technology?
Jos J. de Koning
Why—How—What—So What
Jos J. de Koning
Who Is Taking Care of the Orphan?
Jos J. de Koning
Data, More Data, Big Data
Jos J. de Koning
Let the Race Begin!
Jos J. de Koning
“I Touch the Future. I Teach.”
Jos J. de Koning
Nonfunctional Overreaching, Witches, and the Tour de France
Jos J. de Koning
Evolutionary Pattern of Improved 1-Mile Running Performance
Carl Foster, Jos J. de Koning, and Christian Thiel
The official world records (WR) for the 1-mile run for men (3:43.13) and for women (4:12.58) have improved 12.2% and 32.3%, respectively, since the first WR recognized by the International Association of Athletics Federations. Previous observations have suggested that the pacing pattern for successive laps is characteristically faster-slower-slowest-faster. However, modeling studies have suggested that uneven energy-output distribution, particularly a high velocity at the end of the race, is essentially wasted kinetic energy that could have been used to finish sooner. Here the authors report that further analysis of the pacing pattern in 32 men’s WR races is characterized by a progressive reduction in the within-lap variation of pace, suggesting that improving the WR in the 1-mile run is as much about how energetic resources are managed as about the capacity of the athletes performing the race. In the women’s WR races, the pattern of lap times has changed little, probably secondary to a lack of depth in the women’s fields. Contemporary WR performances have been achieved a coefficient of variation of lap times on the order of 1.5–3.0%. Reasonable projection suggests that the WR is overdue for improving and may require lap times with a coefficient of variation of ~1%.
Standing on the Shoulders of Giants: Essential Papers in Sports and Exercise Physiology
Jos J. de Koning and Carl Foster
Purpose: The purpose of this survey was to create a list of essential historical and contemporary readings for undergraduate and graduate students in the field of exercise physiology. Methods: Fifty-two exercise physiologists/sport scientists served as referees, and each nominated ∼25 papers for inclusion in the list. In total, 396 papers were nominated by the referees. This list was then sent back to the referees, with the instructions to nominate the “100 essential papers in sports and exercise physiology.” Results: The referees cast 4722 votes. The 100 papers with the highest number of votes received 51% (2406) of the total number of votes. A total of 37 papers in the list of “100 essential papers” were published >50 years ago, and 63 papers were published since 1973. Conclusions: This list of essential studies will provide a perspective on contemporary studies, the “giant’s shoulders” to enable young scholars to “see further” or to understand where they have “come from.” This compilation is also meant to impress on students that, given the (lack of) technology available in the past, some of the early science required enormous intuitive leaps on the part of historical scientists.
Determining Anaerobic Capacity in Sporting Activities
Dionne A. Noordhof, Philip F. Skiba, and Jos J. de Koning
Anaerobic capacity/anaerobically attributable power is an important parameter for athletic performance, not only for short high-intensity activities but also for breakaway efforts and end spurts during endurance events. Unlike aerobic capacity, anaerobic capacity cannot be easily quantified. The 3 most commonly used methodologies to quantify anaerobic capacity are the maximal accumulated oxygen deficit method, the critical power concept, and the gross efficiency method. This review describes these methods, evaluates if they result in similar estimates of anaerobic capacity, and highlights how anaerobic capacity is used during sporting activities. All 3 methods have their own strengths and weaknesses and result in more or less similar estimates of anaerobic capacity but cannot be used interchangeably. The method of choice depends on the research question or practical goal.