Polysomnographic characteristics of study participants
| Age years | 60±17 |
| Body mass index kg·m−2 | 28.5±5.3 |
| AHI events·h−1 | 15.7±15.2 |
| REM AHI events·h−1 | 19.0±20.0 |
| Mean oxygen desaturation % | 4.2±1.0 |
| T90% % | 3.5±3.4 |
| Mean hypopnoea duration s | 23.2±6.0 |
| Mean apnoea duration s | 21.3±8.2 |
| MVPA-2010 h | 4.5±5.6 |
| MVPA-Δ h | 0.3±4.3 |
Data are presented as median±interquartile range. AHI: apnoea/hypopnoea index; REM: rapid eye movement; T90%: amount of sleep with oxygen saturation <90%; MVPA: moderate to vigorous physical activity; MVPA-2010: time spent undertaking MVPA during 2010 collection; MVPA-Δ: change in time spent undertaking MVPA from baseline (2002–2006) to 2010.