Table 1 Participants characteristics (n = 103)

Sex, male, n (%)

35 (34.0%)

Age, mean (95%CI)

81.3 years (79.8 to 82.8)

Height, mean (95%CI)

164.0 cm (162.2 to 165.9)

Body mass index, mean (95%CI)

28.0 kg/m [2] (27.0 to 29.0)

Self-paced meters walked in 6 min, mean (95%CI)

255.0 m (238.5 to 271.4)

Self-paced speed over the 6 min, mean (95%CI)

2.6 km/t (2.4 to 2.7)

Walking without aid, n (%)

52 (50.5%)

Walking with a cane, n (%)

15 (14.5%)

Walking with a rollator, n (%)

36 (35.0%)

Never smoked, n (%)

44 (42.7%)

Stopped smoking, n (%)

48 (46.6%)

Current smoker, n (%)

11 (10.7%)