RESUMEN
Footwear with or without custom foot orthotics have the potential to improve comfort, but the link with running performance needs further investigation. We systematically reviewed the association of footwear comfort on running economy in recreational runners. Nine electronic databases were searched from inception to March 2020. Eligible studies investigated both direct outcome measures of running performance (e.g. running speed) and/or physiological measures (e.g. running economy (RE)) alongside comfort for each footwear condition tested. Methodological quality was assessed using the "Effective Public Health Practice Project" (EPHPP). RE during submaximal running was the most common physiological outcome reported in 4 of the 6 eligible studies. The absolute difference in RE between the most and least comfortable footwear condition was computed, and meta-analysis was conducted using a random effect model. The most comfortable footwear is associated with a reduction in oxygen consumption (MD: -2.06â mL.kg-1.min-1, 95%CI: -3.71, -0.42, P = 0.01) while running at a set submaximal speed. There was no significant heterogeneity (I2 = 0%, P = 0.82). EPHPP quality assessment demonstrated weak quality of the studies, due to reporting bias and failing to disclose the psychometric properties of the outcome measures. It can be concluded with moderate certainty that improved RE in recreational athletes is associated with wearing more comfortable footwear compared to less comfortable footwear.HighlightsThis systematic review reports on the association of footwear comfort with running economy in recreational runners.Running economy during constant submaximal running is likely improved in recreational runners wearing more comfortable compared to less comfortable footwear.This finding is based on a meta-analysis, including four studies, showing a small but statistically significant decreased oxygen consumption at steady state speeds while wearing the most comfortable footwear.
Asunto(s)
Ortesis del Pié , Carrera , Humanos , Zapatos , Fenómenos Biomecánicos , Pie , Carrera/fisiología , Consumo de Oxígeno/fisiologíaRESUMEN
BACKGROUND: The foot posture index is a static measurement that splits up the foot posture into neutral, pronatus and supinatus. However, the relation between the foot posture and the plantar pressure standards is not well known. For this, the objective of this research is to check the relationship between the foot posture and plantar pressure standard. SUBJECTS AND MATERIAL: 144 participants (101 women and 43 men), mean age 25.4 ± 6.3 years, were measured for the FPI. The pedobarometric measurement was made with the plantar pressure platform, we measured total surface (cm2), mean pressure (kPa) and maximum pressure (kPa), these measurements were correlated with the FPI measurements. RESULTS: 288 feet were analysed with regard to the correlation between point 5 of FPI (medial arch height) and the plantar surface total area (p = 0.038): lower arch height and supinated foot are related to the maximum pressure points with p = 0.029. The total contact surface can be determined with the final score of the FPI, the scores of FPI 3, 5 and 6 FPI (r2 = 0.059, p < 0.001) with a 5.9â% prediction. CONCLUSION: The supinatus foot is correlated statistically significantly through the maximum pressure and the plantar surface with the pronatus foot.