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. 2015 Nov;10(6):868–876.

TABLE 4.

Relationships Between Selected Lower Extremity Muscle Group Strength and Shin Injury

Total (N=68) Girls (N=47) Boys (N=21)
N at risk % injured OR (95% CI) N at risk % injured OR (95% CI) N at risk % injured OR (95% CI)
Hip Abductor Strength
T1 (weakest) 23 26.1 2.35 0.5‐10.9 14 7.1 1.23 0.7‐21.6 9 55.6 1.25 0.2‐9.9
T2 22 18.2 1.48 0.3‐7.5 16 12.5 2.28 0.2‐28.0 6 33.3 1.00 NA
T3 (strongest) 23 13.0 1.00 Ref 17 5.9 1.00 Ref 6 33.3 1.00 Ref
Knee Extensor (Quadriceps) Strength
T1 (weakest) 22 31.8 1.24 0.3‐4.5 16 25.0 NA NA 6 50.0 0.83 0.1‐6.1
T2 24 0.0 NA NA 20 0.0 NA NA 4 0.0 NA NA
T3 (strongest) 22 27.3 1.00 Ref 11 0.0 1.00 Ref 11 54.5 1.00 Ref
Knee Flexor (Hamstring) Strength
T1 (weakest) 23 21.7 0.74 0.2‐ 2. 9 17 11.8 1.33 0.1‐16.7 6 50.0 1.20 0.2‐8.8
T2 23 8.7 0.25 0.1‐1.4 19 5.3 0.55 0.1‐9.9 4 25.0 0.40 0.1‐5.2
T3 (strongest) 22 27.3 1.00 Ref 11 9.1 1.00 Ref 11 45.5 1.00 Ref

N, Number of runners at risk for shin injury; OR, Odds Ratio; CI, Confidence interval; T1, weakest tertile; T2, middle tertile; T3, strongest tertile; NA, Non‐applicable