# August Krogh’s Nobel discovery of oxygen supply to muscles 2026-08-09T15:02:31+00:00 | Health & Science | Indian Opinion Desk Corroboration: 1 independent outlet The Hindu reports that Danish physiologist August Krogh won the 1920 Nobel Prize for uncovering how capillaries regulate oxygen delivery to muscles. His experiments showed that during exercise, additional capillaries open up, shortening the distance oxygen must travel from blood to tissue. This finding, known as the Krogh cylinder model, became key to understanding conditions like cardiovascular disease and poor wound healing. Modern studies have refined the picture, capillaries are not simply switched on and off, and arterioles play a larger role in flow control, but Krogh's core insight about diffusion distance still holds. ## Coverage - thehindu.com Tags: August Krogh, capillary circulation, microcirculation, muscle physiology, Nobel Prize, oxygen supply Canonical: https://indianopinion.org/august-kroghs-nobel-discovery-of-oxygen-supply-to-muscles/ License: Summary and commentary (c) Indian Opinion, reusable with attribution. Facts belong to the linked sources. Cite: https://indianopinion.org/august-kroghs-nobel-discovery-of-oxygen-supply-to-muscles/#story-in-brief Review state: restored archive article, accurate at time of publication, not offered to search indexes.