Multiple outlets report that a rise in running-related knee injuries is being linked to “social media runfluencers” and changing running behavior. Kurt Johnson, director of physiotherapy company One Body LDN, says running injuries have doubled over the past five years. He attributes the increase, in part, to social media-driven trends that encourage people to start or intensify running without adequate preparation, guidance, or gradual training. The reporting describes a broader pattern of knee problems among runners, framed as a growing issue for physiotherapy services. While the sources cite Johnson’s view and observations, they do not provide specific nationwide statistics or detailed medical breakdowns in the excerpts provided. The articles collectively emphasize the claimed upward trend in injuries and the role of online influence as a contributing factor, rather than presenting evidence of direct causation.