Table 3. Means (±standard deviation) of the minimum distance of the lateral malleolus marker from obstacle for the leading and trailing limb and the distance of the heel marker from the obstacle during heel stance phase after and before the obstacle for the leading and trailing limb, respectively.
10%
20%
p-value
Leading limb
Minimum distance (cm)
Before fatigue
17.0 (2.9)
15.8 (2.8)
pf = .950
After fatigue
17.4 (3.7)
15.9 (4.7)
ph = .004
5 minutes after fatigue
17.0 (4.8)
16.0 (5.1)
pf×h = .927
Distance after obstacle (cm)
Before fatigue
28.0 (6.7)
27.1 (7.1)
pf = .216
After fatigue
31.0 (7.7)
28.2 (6.6)
ph = .055
5 minutes after fatigue
28.9 (9.8)
26.4 (7.5)
pf×h = .322
Trailing limb
Minimum distance (cm)
Before fatigue
10.7 (2.7)
8.3 (2.9)
pf = .480
After fatigue
9.0 (5.7)
7.9 (3.6)
ph = .027
5 minutes after fatigue
9.4 (3.1)
8.1 (3.9)
pf×h = .644
Distance before obstacle (cm)
Before fatigue
45. 8 (4.7)
44.7 (4.7)
pf = .020
After fatigue
40.5 (8.3)
45.0 (4.5)
ph = .146
5 minutes after fatigue
45.7 (4.5)
46.3 (5.8)
pf×h = .010
pf, ph, and pf×h: significance level for the factors concerning fatigue (before, after and 5 minutes after), the obstacle height (10% and 20% of lower limb length), and their interaction, respectively.