Antero-posterior position of the cleat for road cycling

NewsBot · Nov 2, 2012

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Antero-posterior position of the cleat for road cycling
J. Ramos, P.V. Munuera, G. Domínguez
Science & Sports; Volume 27, Issue 5, November 2012, Pages e55–e61

Objective
This work aims at determining the antero-posterior position of the cleat based on various morphological characteristics of the cyclist's lower limb.

Method
Two tests were used to quantify this position: a photograph-based one and a radiograph-based one. Both, the photograph and the radiograph were digitalized to enable measurements by means of the software AutoCAD® 2006. Two linear regression models were constructed from the variables cleat/first metatarsal distance and tip/cleat distance, which were invalidated by the low squared-R coefficient value (0.106 and 0.057, respectively).

Results
Participants presented almost constant values of 3.6 ± 0.8 cm for the cleat/first metatarsal distance and 0.43 for the tip/cleat distance. As the distance from the base of the cleat to the pedal spindle is 3.6 cm, it may be stated that the pedal spindle may coincide with the head of the first metatarsal by positioning the base of the cleat at 43% of the length of the shoe measured from its distal end.
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Admin2 · Nov 2, 2012

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NewsBot · Jul 13, 2019

The effect of cycling shoes and the shoe-pedal interface on maximal mechanical power output in bicycling
Andrew Christopher Burns Rodger Kram
Thesis July 12, 2019

Cyclists and industry professionals believe that cycling shoes improve performance. However, scientific evidence has demonstrated that cycling shoes have no significant effect on metabolic cost during submaximal, steady-state cycling (50-150 W). Here, we investigated if cycling shoes and click-in pedals provide benefits relevant to sprint cycling. We measured the mechanical power outputs and velocities of twelve healthy male participants during maximal sprint cycling with the null hypotheses of no differences. Participants rode outdoors on a paved asphalt road with a steady, uphill gradient of 4.9%. Each participant completed sets of three 100-meter cycling sprints in three conditions: (1) running shoes with flat pedals, (2) running shoes with classic aluminium quill pedals with toe clips and straps, and (3) rigid-soled, cleated cycling shoes with click-in pedals. Average and maximal power outputs and velocities all increased with the addition of a shoe-pedal attachment and further increased with the stiff soles. When using the running shoes, the toe clip attachment increased maximum power by 9.7 +/- 8.7% (p=1.7E-03). Comparing the running shoes with toe clips versus cycling shoes with click-in pedals conditions, the greater longitudinal bending stiffness of the cycling shoes enhanced maximum power by 16.6 +/- 10.2% (p=3.25E-06). Hence, we reject both null hypotheses. Shoe-pedal attachment and stiff soles independently and positively improve cycling performance during high-power, uphill sprints.
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