a dash relies on energy stores which afterwards are replenished by increased oxygen consumption. Paralleling the work of German Otto Fritz Meyerhof, Hill elucidated the processes whereby mechanical work is produced in muscles. The two shared the 1922 Nobel Prize in Physiology and Medicine for this work. Hill introduced the concepts of maximal oxygen uptake and oxygen debt in 1922. Personal life In 1913 he married Margaret Neville Keynes (1885-1974), daughter of the economist John Neville Keynes, and sister of the economist John Maynard Keynes and the surgeon Geoffrey Keynes. They had two sons and two daughters: Polly Hill (1914–2005), economist, married K.A.C. Humphreys, registrar of the West African Examinations Council. David Keynes Hill (1915–2002), physiologist, married Stella Mary Humphrey Maurice Hill (1919–1966), oceanographer, married Philippa Pass Janet Hill (1918–2000) child psychiatrist, married the immunologist John Herbert Humphrey. Honors and awards Officer of the Order of the British Empire (1918) Fellow of the Royal Society (1918) Nobel Prize in Physiology or Medicine (1922) In 1926 he was invited to deliver the Royal Institution Christmas Lecture on Nerves and Muscles: How We Feel and Move. Associate Fellow in the National Academy of Kinesiology (1938) Companion of Honour (1946) Copley Medal of the Royal Society (1948) President of the British Association (1952) Blue plaque On 9 September 2015 an English Heritage Blue plaque was erected at Hill's former home, 16 Bishopswood Road, Highgate, where he had lived from 1923 to 1967. Since then the house had been divided into flats and owned by Highgate School, where Hill was a Governor from 1929 to 1960. It has now been sold, redeveloped and renamed as Hurstbourne. In Hill's time, according to his grandson Nicholas Humphrey, regular guests at the house included 18 exiled Nobel laureates, his brother-in-law, the economist John Maynard Keynes, and friends Stephen Hawking and Sigmund Freud. After-dinner conversations in the drawing room would inevitably involve passionate debates about science or politics. "Every Sunday we would have to attend a tea party at grandpa’s house and apart from entertaining some extraordinary guests, he would devise some great games for us, such as frog racing in the garden or looking through the lens of a (dissected) sheep’s eye". Sir Ralph Kohn FRS who proposed the Blue plaque, said: "The Nobel Prize winner A. V. Hill contributed vastly to our understanding of muscle physiology. His work has resulted in wide-ranging application in sports medicine.