Recruitment and eligibility
CKD
MAY, RECRUITMENT
Recruitment took place at eleven National Health Service (NHS) hospitals within England from May 2021 to October 2022. A list of trial sites can be obtained from the clinical trials registry. Centres were selected to ensure the population was geographically, ethnically and socio-economically representative. Prospective participants were screened by their clinical team, and clinical records reviewed to confirm eligibility. Suitable adults were approached face-to-face during routine clinic visits, or via telephone, by trained research staff. Posters were also displayed at each kidney unit, allowing potential participants to contact the study team if they were interested.Adults 18 years + of age with established CKD were eligible for inclusion in the trial. Participants who were unable to safely exercise, according to current American College of Sports Medicine guidelines [The trial was explained in full over the telephone or face-to-face, and a written information sheet subsequently provided via email. Following > 24 h, a member of the research team re-contacted the participant to answer any questions. No participation incentives were provided. Written informed consent was obtained via a secure online link (SurveyMonkey Ltd), or face-to-face at a routine clinic visit. Consent forms and Participants Information Sheets are included with Supplementary Material Following consent and baseline assessment, participants were randomised (1:1) to the intervention or wait-list control group using a validated web-based system (Sealed Envelope Ltd). Randomisation and treatment allocation was performed by an independent member of the research team, using an approach based on randomly permuted blocks. The allocation list was stored in a password-protected database.Given the nature of the intervention, blinding of the healthcare professionals providing the programme and the participants was not possible. Outcome assessors were, however, blinded to treatment allocation. The statistical analysis plan was developed 