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01-12-2014 | Review | Uitgave 1/2014 Open Access

Journal of Foot and Ankle Research 1/2014

The effect of foot orthoses and in-shoe wedges during cycling: a systematic review

Tijdschrift:
Journal of Foot and Ankle Research > Uitgave 1/2014
Auteurs:
Boon K Yeo, Daniel R Bonanno
Belangrijke opmerkingen

Electronic supplementary material

The online version of this article (doi:10.​1186/​1757-1146-7-31) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

BKY and DRB were fully involved in the preparation and completion of the study procedures. BKY and DRB were responsible for the preparation and review of the manuscript prior to submission for publication. Both authors read and approved the final manuscript.

Abstract

Background

The use of foot orthoses and in-shoe wedges in cycling are largely based on theoretical benefits and anecdotal evidence. This review aimed to systematically collect all published research on this topic, critically evaluate the methods and summarise the findings.

Methods

Study inclusion criteria were: all empirical studies that evaluated the effects of foot orthoses or in-shoe wedges on cycling; outcome measures that investigated physiological parameters, kinematics and kinetics of the lower limb, and power; and, published in English. Studies were located by data-base searching (Medline, CINAHL, Embase and SPORTDiscus) and hand-searching in February 2014. Selected studies were assessed for methodological quality using a modified Quality Index. Data were synthesised descriptively. Meta-analysis was not performed as the included studies were not sufficiently homogeneous to provide a meaningful summary.

Results

Six studies were identified as meeting the eligibility criteria. All studies were laboratory-based and used a repeated measures design. The quality of the studies varied, with Quality Index scores ranging from 7 to 10 out of 14. Five studies investigated foot orthoses and one studied in-shoe wedges. Foot orthoses were found to increase contact area in the midfoot, peak pressures under the hallux and were perceived to provide better arch support, compared to a control. With respect to physiological parameters, contrasting findings have been reported regarding the effect foot orthoses have on oxygen consumption. Further, foot orthoses have been shown to not provide effects on lower limb kinematics and perceived comfort. Both foot orthoses and in-shoe wedges have been shown to provide no effect on power.

Conclusion

In general, there is limited high-quality research on the effects foot orthoses and in-shoe wedges provide during cycling. At present, there is some evidence that during cycling foot orthoses: increase contact area under the foot and increase plantar pressures under the hallux, but provide no gains in power. Based on available evidence, no definitive conclusions can be made about the effects foot orthoses have on lower limb kinematics and oxygen consumption, and the effect in-shoe wedges have on power during cycling. Future well-designed studies on this topic are warranted.

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Extra materiaal
Authors’ original file for figure 1
13047_2014_752_MOESM1_ESM.pdf
Authors’ original file for figure 2
13047_2014_752_MOESM2_ESM.doc
Authors’ original file for figure 3
13047_2014_752_MOESM3_ESM.docx
Literatuur
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