Demographics of the participants at baseline
| Variable | HIIT (n=12) | CON (n=14) |
| Gender (women/men) | 3/9 | 3/11 |
| Age (years) | 53.5 (49.3–57.7) | 50.6 (45.1–56.2) |
| BMI (kg·m2) | 37.2 (33.8–40.5) | 37.5 (34.7–40.4) |
| Sleep apnoea duration (months) | 50 (18–83) | 86 (48–124) |
| CPAP users (n) | 10 | 12 |
| Systolic blood pressure (mm Hg) | 134 (122–145) | 137 (129–145) |
| Diastolic blood pressure (mm Hg) | 81 (72–90) | 83 (77–88) |
| Hb (g·dL−1) | 14.7 (14.1–15.2) | 14.9 (14.0–15.8) |
| HCT (%) | 43.5 (41.7–45.4) | 43.3 (40.9–45.7) |
| Total cholesterol (mmol·L−1) | 5.25 (4.55–5.94) | 5.24 (4.51–5.96) |
| LDL cholesterol (mmol·L−1) | 3.30 (2.67–3.93) | 3.29 (2.63–3.95) |
| HDL cholesterol (mmol·L−1) | 1.23 (1.06–1.40) | 1.07 (0.87–1.28) |
| Triglycerides (mmol·L−1) | 1.58 (1.15–2.02) | 1.95 (1.29–2.61) |
| CRP (Mg·L−1) | 6.16 (4.82–7.52) | 8.50 (4.25–12.75) |
| TSH (mU·L−1) | 1.83 (1.38–2.28) | 2.27 (1.79–2.76) |
| T4 (pmol·L−1) | 15.32 (14.30–16.33) | 15.27 (14.12–16.42) |
| HBA1c (%) | 5.75 (5.52–5.98) | 5.93 (5.57–6.29) |
| Insulin (pmol·L−1) | 113.5 (68.0–159.0) | 141.9 (29.9–153.9) |
| Leptin (pmol·L−1) | 1440 (778–2102) | 1656 (809–2504) |
Data are reported in mean and 95% confidence interval (95% CI).
BMI, body mass index; CON, control group; CPAP, continuous positive airway pressure; CRP, C reactive protein; Hb, haemoglobin; HBA1c, glycolyzed haemoglobin A1c; HCT, haematocrit; HDL, high-density lipoprotein; HIIT, high-intensity interval training; LDL, low-density lipoprotein; T4, thyroxin; TSH, thyroid-stimulating hormone.