Table 1.

Demographic and clinical characteristics of participants who recorded more than 50 h

Characteristics
	All	Adult	Children
			All	Male
Sample size	82	17	65	31
Age (years)	16.9 (16.0)	43 (18.9)	10.1 (2.8)	10.6 (2.9)
	[6.0–84.3]	[18.0–84.3]	[6.0–17.6]	[6.1–17.6]
Sex: number of female (%)	46 (56.0%)	12 (70,6%)	34 (52.3%)	0 (0%)
Height (cm)	144.0 (18.3)	167.5 (10.6)	137.8 (14.6)	142.5 (15.1)
	[114.0–195.0]	[153.2–195.0]	[114.0–173.3]	[118.0–174.3]
BMI (kg/m2)	18.8 (4.5)	25.7 (3.6)	17.0 (2.5)	17.2 (2.4)
	[13.2–32.8]	[20.1–32.8]	[13.2–26.1]	[13.9–23.7]
6MWT (m)	594.7 (71.2)	551.5 (82.0)	606.0 (64.1)	618.2 (61.6)
	[436.0–761.0]	[436.0–716.0]	[464.0–761.0]	[496.0–761.0]
4SC (s)	1.4 (0.3)	1.6 (0.4)	1.3 (0.3)	1.3 (0.3)
	[0.9–2.3]	[1.1–2.3]	[0.9–2.3]	[1–2.3]
RFF (s)	1.8 (0.6)	2.7 (0.9)	1.6 (0.2)	1.57 (0.3)
	[1.0–4.9]	[1.2–4.9]	[1.0–2.2]	[1.0–2.2]
10WT (m)	4.8 (0.8)	5.1 (0.8)	4.7 (0.7)	4.5 (3.5)
	[3.1–7.3]	[4.1–7.3]	[3.1–7.2]	[3.5–5.7]
Distance/hour (m/h)	265.2 (87.2)	246.4 (89.5)	270.2 (86.5)	294.8 (88.9)
	[39.9–484.4]	[119.6–433.0]	[39.9–484.4]	[39.9–484.4]
SV50C (m/s)	1.0 (0.1)	1.1 (0.1)	1.0 (0.1)	1.0 (0.1)
	[0.7–1.3]	[0.7–1.3]	[0.9–1.3]	[0.9–1.3]
SV95C (m/s)	2.4 (0.6)	1.6 (0.3)	2.6 (0.4)	2.6 (0.4)
	[1.1–3.6]	[1.1–2.3]	[1.6–3.6]	[1.7–3.2]
SL50C (m)	1.1 (0.1)	1.2 (0.1)	1.0 (0.1)	1.1 (0.1)
	[0.8–1.5]	[0.8–1.5]	[0.8–1.4]	[0.8–1.4]
SL95C (m)	1.7 (0.2)	1.5 (0.2)	1.7 (0.2)	1.7 (0.2)
	[1.1–2.3]	[1.1–1.8]	[1.4–2.3]	[1.4–2.1]

Data are expressed in mean (SD) [Min–Max]. BMI body mass index, 6MWT 6-min walk distance, 4SC 4-stair climb; RFF rise from floor; 10MW 10-m walk test; SV50C 50th centile stride velocity; SV95C 95th centile stride velocity; SL50C 50th centile stride length; SL95C 95th centile stride length