Cruz-Jentoft AJ, Sayer AA. Sarcopenia. Lancet 2019; 393: 2636–46—In figure 5 of this Seminar (published Online First on June 3, 2019), the centile curves showing the UK normative grip strength data for men were unclear and have now been emphasised. This correction has been made to the online version as of June 27, 2019, and the printed Seminar is correct.