Rectus Femoris Cross-Sectional Area and Muscle Layer Thickness: Comparative Markers of Muscle Wasting and Weakness

Supported by the U.K. National Institute of Health Research (NIHR) (Z.A.P.), the Batchworth Charitable Trust, the Moulton Charitable Foundation, and the NIHR University College London Hospitals Biomedical Research Centre (UCLH BRC) (A.S.M.), the Research Councils UK (S.D.H.), the NIHR Clinical Research Facility and BRC at Guy’s and St. Thomas’ National Health Service (NHS) Foundation Trust (GSST) and King’s College London (N.H. and B.C.), and by University College London and UCLH BRC (H.E.M., Z.A.P., and A.S.M.). The NIHR doctorate fellowship (2010–2014) underpinned the core patient population study on which this follow-up was built, as did funding from the Batchworth Charitable Trust, Moulton Foundation, and European Society of intensive Care Medicine. Additional funding was received from the Whittington Hospital NHS Trust and the European Society of Intensive Care Medicine.