Table 4. Means (± standard deviation) of the electromyographic data (percentage of the maximum during MVC test) of the trailing limb during stance and swing phase.
|
no obstacle |
10% |
20% |
p-values |
| Stance Phase |
Medial gastrocnemius |
Before fatigue |
17.0 (5.3) |
17.8 (6.0) |
17.8 (6.7) |
pf = .143 |
| After fatigue |
21.1 (12.9) |
20.5 (10.4) |
20.5 (9.5) |
ph =.806 |
| 5 minutes after fatigue |
23.1 (12.7) |
22.3 (11.8) |
20.8 (11.7) |
pf×h = .739 |
| Soleus |
Before fatigue |
20.8 (8.8) |
20.9 (9.0) |
20.9 (9.3) |
pf = .336 |
| After fatigue |
21.2 (11.7) |
21.8 (10.0) |
22.6 (13.9) |
ph = .992 |
| 5 minutes after fatigue |
25.6 (16.6) |
24.6 (13.3) |
24.3 (13.7) |
pf×h = .904 |
| Tibialis anterior |
Before fatigue |
20.2 (9.3) |
19.2 (8.1) |
19.0 (8.9) |
pf = .306 |
| After fatigue |
19.8 (10.7) |
20.4 (9.8) |
19.6 (10.9) |
ph = .939 |
| 5 minutes after fatigue |
22.1 (12.5) |
23.5 (14.2) |
23.6 (11.8) |
pf×h = .846 |
| Swing Phase |
Medial gastrocnemius |
Before fatigue |
12.3 (4.6) |
14.7 (4.6) |
15.3 (6.1) |
pf = .248 |
| After fatigue |
15.5 (9.3) |
18.8 (11.2) |
20.0 (7.7) |
ph = .531 |
| 5 minutes after fatigue |
19.5 (13.0) |
19.0 (10.7) |
16.5 (9.3) |
pf×h = .026 |
| Soleus |
Before fatigue |
17.4 (5.6) |
19.3 (7.4) |
19.5 (7.5) |
pf = .616 |
| After fatigue |
18.1 (9.4) |
20.3 (7.7) |
21.4 (10.5) |
ph = .597 |
| 5 minutes after fatigue |
21.8 (14.7) |
22.2 (11.0) |
19.6 (9.8) |
pf×h = .419 |
| Tibialis anterior |
Before fatigue |
15.9 (5.7) |
17.6 (7.0) |
17.7 (8.0) |
pf = .782 |
| After fatigue |
16.1 (10.2) |
18.1 (6.7) |
17.7 (5.1) |
ph = .483 |
| 5 minutes after fatigue |
17.7 (10.2) |
19.8 (10.1) |
17.9 (8.4) |
pf×h = .955 |
p
f, p
h, and p
f×h: significance level for the factors concerning fatigue (before, after and 5 minutes after), the presence of the obstacle or obstacle height (10% and 20% of lower limb length), and their interaction, respectively.
