Baseline characteristics of study populations in included trials
| Trial | Sample size | Age (years) | Sex, male | Body mass index (kg/m2) | Hypertension | |||||
| AL | AP | AL | AP | AL | AP | AL | AP | AL | AP | |
| Siaplaouras et al23 2005 | 63 | 60 | 66±10 | 67±10 | 47 (75) | 40 (67) | 28±5 | 28±4 | 18 (28) | 26 (44) |
| Walsh et al25 2005 | 150 | 144 | 67±10 | 66±14 | 95 (63) | 100 (64) | 28±5 | 29±5 | 57 (38) | 81 (52) |
| Brazdzionyte et al24 2006 | 55 | 48 | 63±12 | 62±10 | 36 (66) | 29 (60) | 30±5 | 30±5 | 20 (36) | 19 (39) |
| Muñoz-Martínez et al15 2010 | 46 | 45 | 63±9 | 55±13 | 40 (87) | 35 (78) | NA | NA | 15 (33) | 14 (31) |
| Schmidt et al26 2021 | 233 | 234 | 69±10 | 69±9 | 156 (67) | 158 (67) | 29±6 | 29±5 | 149 (64) | 151 (65) |
Data are mean ±SD or n (%).
AL, anterior lateral; AP, anterior–posterior; NA, not available.