Table 4.
Descriptive statistics and results of 2-way repeated-measures ANOVAs with post hoc comparisons of percent mean root-mean-square amplitudes relative to maximum voluntary isometric contractions during the 100 ms after foot contact across the 3 landing conditions (%)
| LFL | SSL | URL | Post hoc comparisons | |
|---|---|---|---|---|
| Lateral gastrocnemius | ||||
| Males | 49.1 ± 12.8 | 43.3 ± 13.7 | 40.2 ± 13.1 | |
| Females | 70.2 ± 25.3 | 63.9 ± 23.1 | 59.2 ± 21.9 | |
| All** | 59.7 ± 22.3 | 53.6 ± 21.3 | 49.7 ± 20.1 | LFL > URL‡‡ |
| Medial gastrocnemius | ||||
| Males | 53.2 ± 17.8 | 44.5 ± 13.1 | 39.8 ± 17.4 | |
| Females | 72.2 ± 25.6 | 67.3 ± 25.4 | 59.7 ± 26.9 | |
| All** | 62.7 ± 23.6 | 55.9 ± 22.9 | 49.8 ± 24.3 | LFL > URL‡‡, SSL > URL‡ |
| Lateral quadriceps | ||||
| Males | 44.8 ± 13.6 | 44.9 ± 12.7 | 46.7 ± 16.6 | |
| Females | 61.2 ± 22.0 | 64.9 ± 29.5 | 71.6 ± 28.5 | |
| All* | 53.0 ± 19.7 | 54.9 ± 24.4 | 59.2 ± 26.1 | LFL < URL‡‡, SSL < URL‡ |
| Medial quadriceps | ||||
| Males | 69.9 ± 27.3 | 67.8 ± 22.6 | 68.4 ± 28.0 | |
| Females | 84.1 ± 27.3 | 96.0 ± 38.2 | 106.7 ± 61.9 | |
| Alln.s. | 77.0 ± 27.6 | 81.9 ± 33.8 | 87.6 ± 50.7 | |
| Lateral hamstrings | ||||
| Males | 36.0 ± 11.9 | 36.1 ± 12.8 | 34.3 ± 10.7 | |
| Females | 43.4 ± 24.7 | 51.4 ± 36.4 | 55.8 ± 40.0 | |
| Alln.s. | 39.7 ± 19.2 | 43.7 ± 27.7 | 45.1 ± 30.6 | |
| Medial hamstrings | ||||
| Males | 30.0 ± 14.6 | 32.4 ± 15.5 | 32.3 ± 13.0 | |
| Females | 37.8 ± 18.4 | 38.5 ± 17.6 | 44.3 ± 25.4 | |
| Alln.s. | 33.9 ± 16.6 | 32.3 ± 13.0 | 38.3 ± 20.6 | |
LFL leaning forward landing, SSL self-selected landing, URL upright landing, n.s. main effect is not significant
*
Significant main effect at a level of less than 0.05
**
Significant main effect at a level of less than 0.01
†
Significant sex-by-landing interaction at a level of less than 0.05
††
Significant sex-by-landing interaction at a level of less than 0.01
‡
Significantly different at a level of less than 0.05
‡‡
Significantly different at a level of less than 0.01