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Arch-support foot-orthoses normalize dynamic in-shoe foot pressure distribution in medial tibial stress syndrome

Naderi, A and Degens, Hans and Sakinepoor, A (2018) Arch-support foot-orthoses normalize dynamic in-shoe foot pressure distribution in medial tibial stress syndrome. European journal of sport science, 19 (2). pp. 247-257. ISSN 1746-1391

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Abstract

Excessive foot pronation during gait is a risk factor in medial tibial stress syndrome (MTSS). Arch-support foot-orthoses are commonly used to manage overpronation, but it is unknown whether it is effective to manage MTSS. The present study investigated the effects of bilateral foot orthoses during running on dynamic foot-pressure distribution patterns in recreational runners with MTSS. Fifty novice (started within the last 4 months) runners diagnosed with MTSS (20.7 ± 2.2 years; 71.1 ± 8.6 kg; 1.78 ± 0.07 m; mean ± SD) and 50 anthropometrically-matched healthy novice runners (21.9 ± 2.4 years; 71.4 ± 8.8 kg; 1.73 ± 0.07 m) participated in this study. The dynamic foot-pressure distribution during running with and without bilateral arch-support foot-orthoses was measured using pedobarography. MTSS novice runners have more medially directed pressures during the touchdown phase of the forefoot flat (p = 0.009) and heel off (p = 0.009), and a lateral pressure distribution during forefoot push-off phase (p = 0.007) during running than healthy runners. When using the arch-support foot-orthoses the foot-pressure distribution during all phases was not significantly different from that seen in participants without MTSS. These findings indicate that during running the medial shift of foot pressures during the loading response phase and the lateral shift during the propulsion phase of foot roll-over in MTSS are effectively corrected by using arch-support foot-orthoses. The use of such arch-support orthoses may thus be an effective tool to normalize foot-pressure distribution patterns during running, indicating the potential to treat and prevent MTSS in recreational runners.

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