Table 2.
Descriptive statistics of the functional performance tests (Mean ± SD).
| Age Groups |
Dynamic Balance
(YBT) |
Multidirectional Speed
(LEFT) |
|
|---|---|---|---|
|
Composite Score
(CS, %) |
Limb Symmetry Index
(LSI, %) |
Execution Time
(s) |
|
|
U11
Dom N-Dom |
84.0 ± 8.1 82.8 ± 6.7 |
101.8 ± 10.5 | 111.1 ± 15.7 |
|
U12
Dom N-Dom |
86.3 ± 5.2 88.8 ± 5.1 |
97.3 ± 6.8 | 102.4 ± 3.4 |
|
U13
Dom N-Dom |
84.0 ± 8.2 84.1 ± 5.7 |
99.8 ± 6.1 | 107.1 ± 8.4 |
|
U14
Dom N-Dom |
82.2 ± 4.6 83.2 ± 4.1 |
98.9 ± 3.0 | 98.6 ± 4.4 |
|
U15
Dom N-Dom |
83.5 ± 5.5 81.9 ± 5.8 |
102.1 ± 4.3 | 93.0 ± 4.2 |
|
U16
Dom N-Dom |
83.0 ± 4.9 83.9 ± 4.8 |
98.9 ± 3.9 | 92.4 ± 5.0 |
|
U17
Dom N-Dom |
83.3 ± 5.6 82.0 ± 4.7 |
101.7 ± 5.3 | 89.9 ± 3.6 |
|
U19
Dom N-Dom |
84.0 ± 5.0 83.9 ± 4.4 |
100.2 ± 4.5 | 92.0 ± 7.3 |
Abbreviations: U, under; Dom, dominant leg; N-Dom, non-dominant leg; YBT, y-balance test; LEFT, lower extremity functional test; CS, composite score (%); LSI, limb symmetry index (%); s, seconds; %, percentage. Cut-off for performance deficits of injury risk indicators: CS ≤ 89%, LSI ≤ 90%, LEFT ≤ 100 s.