The influence of midsole shear on running smoothness

Clermont, Christian A.; Barrons, Zach B.; Esposito, Michael; Culo, Marina; Dominguez, Eugene; Wannop, John W.; Stefanyshyn, Darren J.

doi:10.1080/19424280.2021.1916612

Cited by 1 publication

(1 citation statement)

References 3 publications

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“…Nigg et al [ 46 ] have suggested that the majority of metabolic savings in Vaporfly shoes come from a so-called teeter-totter effect, but this mechanism has not been fully defined or experimentally verified. Regardless, a rocker can be expected to improve the midfoot to toe off transition (“ride”) and combined with the right bending stiffness, reduce ankle plantar flexion moments (and associated plantar flexion muscle force demands) [ 47 , 48 ].…”

Section: Potential Mechanisms For Spike Performance Improvementsmentioning

confidence: 99%

Can We Quantify the Benefits of “Super Spikes” in Track Running?

et al. 2022

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The recent and rapid developments in track spike innovation have been followed by a wave of record-breaking times and top performances. This has led many to question what role “super spikes” play in improving running performance. To date, the specific contributions of new innovations in footwear, including lightweight, resilient, and compliant midsole foam, altered geometry, and increased longitudinal bending stiffness, to track running performance are unknown. Based on current literature, we speculate about what advantages these features provide. Importantly, the effects of super spikes will vary based on several factors including the event (e.g., 100 m vs. 10,000 m) and the characteristics of the athlete wearing them. Further confounding our understanding of super spikes is the difficulty of testing them. Unlike marathon shoes, testing track spikes comes with a unique challenge of quantifying the metabolic energy demands of middle-distance running events, which are partly anaerobic. Quantifying the exact benefits from super spikes is difficult and we may need to rely on comparison of track performances pre- and post- the introduction of super spikes.

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Section: Potential Mechanisms For Spike Performance Improvementsmentioning

confidence: 99%