Table 10 Triceps surae injuries. Continuous variables Patients Mean (±SD) p Height (cm) Affected Non affected 180 (3) 170 (10) .0005 Weight (kg) Affected Non affected 69.0 (4.3) 59.4 (10.8) .002 Years of activity Affected Non affected 14.2 (7.4) 9.4 (7.0) .05 Group variables Group Affected (%) p Gender Males Females 11.6% 0% .002 Type of activity Sprint Hurdles Middle distance Long distance 7.7% 20.0% 9.1% 0% .032 Level Competitive Recreational 9.1% 0% .017 Hindfoot Neutral Varus Valgus 5.9% 25.0% 2.4% .002 Longitudinal arch Normal Cavus Flat 3.6% 14.3% 0% .03 Knee alignment Neutral Varus Valgus 2.0% 13.0% 11.1% .02 Initial contact Heel Midfoot Toe 4.0% 4.0% 25.0% .004