> Background: Evidence that high-end “motion control” running shoes can correct and regulate rearfoot pronation is inconsistent. Stop-motion photography, three-dimensional camera kinematic analysis, and three-dimensional bone modeling using computed tomography have all been used to assess the efficacy of motion control footwear in minimizing hindfoot pronation during walking. There have been no radiographic investigations that have looked at the influence of motion control running shoes on static foot posture. Murley and colleagues developed a reliable approach that linked noninvasive clinical tests to radiographic results that correspond to foot pronation. The goal of this prospective study was to see if motion control running shoes may generate a significant difference in pronation in female subjects utilizing a radiography study employing the angular relationships outlined by Murley et al in two different shoe conditions compared to barefoot.
> Methods: In this prospective study, arch height index was used to screen 28 female individuals ranging in age from 22 to 27 years. The study enlisted the participation of 24 people having a standing arch height index of less than 0.370. In barefoot, neutral shoe, and motion control shoe situations, unilateral weightbearing dorsoplantar and lateral foot radiographs were collected. Two independent observers used the Opal-Ortho PACS software suite to assess calcaneal inclination angle, calcaneal-first metatarsal (CFMA) angle, talonavicular coverage angle (TNCA), and talus-second metatarsal angle in each condition. Using paired t tests, angles were compared to barefoot baseline values.
> Outcomes: The motion control running shoe resulted in average CFMA decreases of 2.64 percent, TNCA decreases of 12.62 percent, talus-second metatarsal angle increases of 5.3 percent, and calcaneal inclination angle increases of 1.3 percent. When compared to barefoot, statistically significant ( P >.05) improvements in CFMA were observed in both the motion control ( P.000) and neutral shoe conditions ( P.000), whereas TNCA improved only in the motion control shoe condition ( P =.003).
> Findings: > This study discovered evidence that the motion control running shoes evaluated could correct foot pronation in the transverse and sagittal planes during stance. In this radiographic investigation imitating static foot posture in stance, motion control running shoes improved CFMA and TNCA from the barefoot condition and were more successful in correcting pronation than neutral running shoes.
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