1 AGE Research Group, Newcastle University Institute for Translational and Clinical Research, Newcastle upon Tyne, UK.
2 NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle upon Tyne NHS Foundation Trust, Newcastle upon Tyne, UK.
3 Department of Sport and Exercise Sciences, Musculoskeletal Science and Sports Medicine Research Centre, Manchester Metropolitan University, Manchester, UK.
4 ADMISSION Research Collaborative, Newcastle upon Tyne, UK.