REF-033 · Burnley et al., 2025 · Journal of Physiology · Paper

A.V. Hill's athletic-records papers a century on: birth of the speed-duration relationship (Burnley et al. 2025)

Cweak evidence: opinion or lab dataMeasured on a mixed groupWritten before October 2026, being re-checked

Overview

Burnley, Vanhatalo, Poole and Jones revisit the three manuscripts in which A.V. Hill, one hundred years earlier, analysed athletic world records from a physiological standpoint.

With a century of hindsight they show how Hill drew accurate conclusions from very limited data on intense exercise: he discussed the energetics of running, swimming, rowing and cycling in men and women, exercise in horses, the mechanics of jumping, sports nutrition, pacing strategy and ultra-endurance exercise.

Key Findings

Hill established that the speed-duration relationship reflects the underlying physiology of performance, and that the limiting physiology differs with event duration — one of the first descriptions of task-dependent limits to exercise tolerance
His papers predate the revolution in muscle biochemistry that followed within a few years, yet his hypotheses need only minor revision to match current understanding
The review's point: the papers are remarkable not for how well they aged but for how relevant they remain
The previously listed figures here ("±0.5 mmol/L accuracy", "98% intact", "Hill → Seiler → UCI guidelines") had no basis in the paper (not from this paper) and were removed

Practical Application

Contextual reference: the speed/power-duration relationship that critical-power and threshold models formalise (see REF-026, REF-145) has its roots in Hill's record analysis, and the idea that what limits an athlete depends on event duration is a century old. Use it to explain why short and long events are trained differently; it carries no numbers or prescriptions of its own.

Limitations

Historical narrative review; no data, no quantitative claims to carry into coaching.
How this entry was checked and changed
Content correction 2026-09-27
"Hill's lactate measurements: ±0.5 mmol/L accuracy", "framework 98% intact", "direct lineage Hill → Seiler polarized training → current UCI guidelines" -> none of this is in the abstract; removed.
Overview and Key Findings rewritten from the abstract (three record-analysis papers, speed-duration relationship, task-dependent limits, breadth of topics). Cross-reference label corrected to Hill & Lupton 1923.