Skip to Main content Skip to Navigation
Journal articles

Does an increase in energy return and/or longitudinal bending stiffness shoe features reduce the energetic cost of running?

Abstract : Purpose This study focused on the effects of shoe energy return and shoe longitudinal bending stiffness on the energetic cost and biomechanics of running. Methods The energetic cost of running and biomechanical variables altering running economy (ground contact times, stride frequency, vertical and leg stiffness, ground reaction force impulses, alignment between the resultant ground reaction force and the leg) were measured for nineteen male recreational runners. Participants ran overground under their ventilatory anaerobic threshold (10.8 ± 1.1 km h −1 on average) using four shoe prototypes with features combining low or high magnitudes of energy return and longitudinal bending stiffness. Results Neither the energy return, nor the longitudinal bending stiffness, or the interaction of these shoe features altered the energetic cost of running. High energy return shoes induced significant increased ground contact time from 274.5 ± 18.3 to 277.1 ± 18.7 ms, and significant decreased stride frequency from 1.34 ± 0.05 to 1.33 ± 0.05 Hz. High bending stiffness shoes induced significant increased ground contact time from 273.8 ± 18.2 to 277.9 ± 18.7 ms, significant increased vertical stiffness from 23.2 ± 3.4 to 23.8 ± 3.0 kN m −1 , and significant decreased net vertical impulse from 245.4 ± 17.2 to 241.7 ± 17.5 BW ms. Conclusions Increased energy return and longitudinal bending stiffness induced subtle changes in the running biomechanics, but did not induce any decrease in the energetic cost of running.
Document type :
Journal articles
Complete list of metadatas

Cited literature [36 references]  Display  Hide  Download

https://hal-amu.archives-ouvertes.fr/hal-02185103
Contributor : Guillaume Rao <>
Submitted on : Tuesday, July 16, 2019 - 2:18:12 PM
Last modification on : Tuesday, January 7, 2020 - 11:08:01 AM

File

Flores et al EJAP 2018.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

Nicolas Flores, Nicolas Delattre, Eric Berton, · Rao, Guillaume Rao. Does an increase in energy return and/or longitudinal bending stiffness shoe features reduce the energetic cost of running?. European Journal of Applied Physiology, Springer Verlag, 2019, 119 (2), pp.429-439. ⟨10.1007/s00421-018-4038-1⟩. ⟨hal-02185103⟩

Share

Metrics

Record views

101

Files downloads

295