“…Exercise‐hypertrophy in itself must provide a high population of such large skeletal fibres for the ageing process to act upon. Whether this accounts for the supposed superior retention of strength in old cyclists (Clement 1961), weight lifters (Abbo 1966) and fencers (Bourguignon et al 1951), and in mountainous areas—a persistent tale—one cannot infer, for selection takes place. It might well be rational, however, to approach old age with as large a mass of skeletal muscle as possible.…”