Running enjoys worldwide popularity across age groups and sexes. Because of this, it serves as an excellent benchmark to compare male and female performance across the lifespan with respect to developmental progression, peak athletic performance, and age-related regression. The purpose of this review is to examine and discuss how sex and aging affect running performance in sprints, middle-distance running, and long-distance running. Based on the scientific literature and running world records from age 5–99, male running performance exceeds that of females across the lifespan, with the greatest divide beginning at puberty, which remains through old age. However, there appear to be few differences in the rate of progression in youth and the age of peak performance, but it is unclear whether the rate of decline, beginning in middle age, differs by sex and sport for record performances. Future analyses should examine changes in all running performances across the lifespan.
Evolutionarily speaking, humans are seemingly born to run, with anatomical, physiological, and cognitive adaptations that favor endurance exercise
[1]. Those latter adaptations predominantly benefit performance in distance running events (5 km or longer) but also influence performance in shorter running and even sprint events. While humans are regarded as comparatively slow compared to most other species
[2], the pursuit of sporting excellence still drives the desire to achieve excellence in all sports. Therefore, it is no surprise that world records are tracked in nearly every possible endeavor in both men and women across the lifespan. Modern society has allowed amateur athletes as young as 5 years old (yo) and older than 100 yo to compete and achieve records in numerous sports.
As suggested, few sports are as fundamental to humans as running, and, as such, records are maintained for events ranging from 50 m to longer than 100 miles, with continuous improvements since the 1970s
[3][4]. With these improvements, world records have proliferated in all events for both males and females as young as 5–6 yo. While progression in elite record performances has slowed in many running events, Masters (age 35 years and older) world records continue to improve more steeply, indicating that age-related declines in physical performance are perhaps less significant than believed
[5]. Meanwhile, the emergence and rate of progression for junior athletes (13–18 yo) seem to be accelerating, though success at the senior elite level remains elusive for many athletes
[6][7][8][9][10][11].
The proliferation of advanced training methods
[12] and their application, as well as new technology
[13], appears, in part, to be driving performance progression across age groups. Nonetheless, the gap between adult men and women has stayed relatively stable. Regardless of the underlying reasons for improved running performances, running records provide a rawer representation of human performance than records in other sports, like cycling, which is more influenced by external technological factors. As such, running records are truer to the evolved purpose of the body.
Many studies have examined various aspects of running performance across distances between elite men and women
[14][15][16][17][18][19] and across ages for boys and girls
[20][21][22][23] and men and women
[5][23][24][25][26][27][28][29]. Numerous studies have modeled various aspects of the running distance spectrum
[16][17][22][23][25][26][27][28][30]. However, we know of no review that has attempted to assimilate and summarize the major studies for review and discussion of our current understanding of the influence of sex and aging on running across the lifespan. Therefore, the purposes of this review are to
-
Review the determinants of running events for sprints, middle-distance running, and long-distance running;
-
Summarize the major developmental changes that occur in youth to adulthood and then senescence;
-
Note the known sex differences in running performance across developmental stages;
-
Discuss the progression and eventual regression of running performance across the lifespan;
-
Propose future research questions to advance our understanding of these topics.