Abstract
Physical therapists often use videography to accurately measure joint kinematics. The purpose of this study was to determine how the maximal calcaneal inversion and eversion angles are affected while running in individuals with a limb length difference between 1.27 cm (1/2 inch) and 1.9 cm (3/4 inch). Twelve subjects with a limb length difference were videotaped using 60-Hz digitized videography while running on a treadmill. Data were obtained for maximum calcaneal inversion and eversion values. Repeated measures analyses of variance were used to determine if significant differences were evident between the lower extremity. Significant differences were not found between the short and long limb for the maximum amount of calcaneal inversion and eversion range of motion. Since calcaneal inversion and eversion are important components of subtalar joint supination and pronation, respectively, the results suggest that subtalar joint kinematics were not significantly altered.
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