A Multisystem Physiological Perspective of Human Frailty and Its Modulation by Physical Activity

1MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom

2NIHR Nottingham Biomedical Research Centre, The University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom