ASSOCIATION OF ISOMETRIC STRENGTH OF HIP AND KNEE MUSCLES WITH INJURY RISK IN HIGH SCHOOL CROSS COUNTRY RUNNERS, Volume 10, Number 6, November 2015, Pages 868-876.
It has come to the attention of the authors that there is incorrectly reported data in Table 1, regarding strength measurements. Data were reported in pound-meters/kg instead of Nm/kg, as intended. The authors and the editorial staff regret this oversight and provide the corrected table to replace Table as was initially published.
TABLE 1.
Baseline Characteristics (Mean±SD) of High School Cross‐Country Runners
| Total (n=68) | Girls (n=47) | Boys (n=21) | p‐value* | |
|---|---|---|---|---|
| Age (y) | 16.2 ± 1.3 | 16.2 ± 1.3 | 16.3 ± 1.5 | 0.82 |
| Height (cm) | 168.1 ± 8.7 | 164.3 ± 6.3 | 176.5 ± 7.1 | 0.000 |
| Weight (kg) | 59.6 ± 9.0 | 57.1 ± 7.5 | 65.0 ± 9.8 | 0.001 |
| BMI (kg/m2) | 21.0 ± 2.7 | 21.1 ± 2.1 | 20.9 ± 3.7 | 0.81 |
| Muscle strength (Nm/kg) | ||||
| Right hip abductors | 1.12 ± 0.35 | 1.11 ± 0.31 | 1.11 ± 0.31 | 0.89 |
| Left hip abductors | 1.14 ± 0.32 | 1.15 ± 0.31 | 1.12 ± 0.35 | 0.77 |
| Right knee extensors | 1.29 ± 0.21 | 1.26 ± 0.18 | 1.36 ± 0.25 | 0.06 |
| Left knee extensors | 1.27 ± 0.21 | 1.24 ± 0.20 | 1.33 ± 0.23 | 0.11 |
| Right knee flexors | 0.92 ± 0.19 | 0.90 ± 0.15 | 0.99 ± 0.26 | 0.07 |
| Left knee flexors | 0.89 ± 0.20 | 0.87 ± 0.16 | 0.94 ± 0.26 | 0.17 |
| §Mean hip abductors | 1.13 ± 0.32 | 1.14 ± 0.15 | 1.12 ± 0.32 | 0.83 |
| §Mean knee extensors | 1.28 ± 0.20 | 1.25 ± 0.18 | 1.35 ± 0.23 | 0.07 |
| §Mean knee flexors | 0.91 ± 0.19 | 0.88 ± 0.15 | 0.97 ± 0.26 | 0.10 |
BMI, body mass index.
*
Two sample t‐test of differences of means for boys and girls.
§
Average value of Right and Left.