Table 2. Comparison of the peak moment (M
H, M
K, and M
A, N·m/kg) and absolute occurrence time (t, ms) (mean ± SD) in the hip, knee, and ankle joints in the sagittal plane during landings between pre- and post-fatigue conditions.
Protocols |
Fatigue |
MH1 |
t_MH1 |
MH2 |
tMH2*† |
MK1*† |
tMK1 |
MK2 |
tMK2 |
MK3 |
tMK3 |
MA1 |
tMA1 |
MA2* |
tMA2*† |
R-FP |
pre |
8.9±2.2 |
35.6±11.0 |
2.0±1.0 |
99.9±18.9 |
2.0±0.7 |
17.3±3.5 |
2.5±0.5 |
53.7±16.0 |
2.3±0.5 |
82.8±34.6 |
1.6±0.5 |
18.4±5.9 |
1.5±0.4 |
87.3±22.7 |
post |
9.2±2.3 |
32.6±10.5 |
2.1±0.8 |
99.5±19.8 |
2.2±0.7 |
19.7±6.1 |
2.4±0.6 |
57.2±17.6 |
2.4±0.6 |
90.4±45.5 |
1.5±0.9 |
17.6±7.2 |
1.4±0.4 |
81.5±15.5 |
SJ-FP |
pre |
8.9±1.6 |
31.3±12.2 |
2.2±0.9 |
96.0±19.2 |
2.3±0.6 |
18.6±7.3 |
2.4±0.5 |
51.7±12.6 |
2.3±0.4 |
85.3±18.5 |
1.4±0.5 |
19.9±7.3 |
1.4±0.3 |
79.4±20.2 |
post |
8.9±2.3 |
31.7±11.5 |
2.0±0.5 |
102.1±17.0 |
1.9±0.5 |
16.2±3.9 |
2.3±0.5 |
53.6±10.5 |
2.2±0.5 |
72.8±30.1 |
1.4±0.6 |
17.9±6.7 |
1.3±0.3 |
88.1±17.7 |
* Significant differences between pre- and post-fatigue conditions, with p < 0.05.† Significant fatigue × protocol interaction effects, with p < 0.05. R-FP = fatigue protocol with constant speed running; SJ-FP = fatigue protocol with shuttle sprint plus vertical jump; pre = pre-fatigue; post = post-fatigue; M
H1, M
H2 = two typical peaks in the hip joint moment – time curve; t_M
H1, t_M
H2 = the absolute time of contact to M
H1 and M
H2; M
K1, M
K2, and M
K3 = three typical peaks in the knee joint moment – time curve; t_M
K1, t_M
K2, t_M
K3 = the absolute time of contact to M
K1, M
K2, and M
K3; M
A1,M
A2 = two typical peaks in the ankle joint moment – time curve; t_M
A1, t_M
A2 = the absolute time of contact to M
A1 and M
A2.