Evidence map›Paper›PMID 30460454›Full record

Trial reportSports medicine (Auckland, N.Z.)2019

The Biomechanics of Competitive Male Runners in Three Marathon Racing Shoes: A Randomized Crossover Study.

Wouter Hoogkamer, Shalaya Kipp, Rodger Kram

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Sports medicine (Auckland, N.Z.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

57 citing papers in PubMed, 1 synthesis or guideline pooled it, 188 citations in OpenAlex.

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  18. Quo vadis advanced footwear technology research?Journal of sport and health science · 2025
    Article
  19. Skeletal muscle elastic modulus in marathon distance runners.European journal of applied physiology · 2025
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Wouter HoogkamerLocomotion Lab, Department of Integrative Physiology, University of Colorado, Boulder, 354 UCB, Boulder, CO, 80309-0354, USA. wouter.hoogkamer@colorado.edu.ORCID http://orcid.org/0000-0003-0524-0196
Shalaya KippLocomotion Lab, Department of Integrative Physiology, University of Colorado, Boulder, 354 UCB, Boulder, CO, 80309-0354, USA.
Rodger KramLocomotion Lab, Department of Integrative Physiology, University of Colorado, Boulder, 354 UCB, Boulder, CO, 80309-0354, USA.
University of Colorado Boulder · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe have shown that a prototype marathon racing shoe reduced the metabolic cost of running for all 18 participants in our sample by an average of 4%, compared to two well-established racing shoes. Gross measures of biomechanics showed minor differences and could not explain the metabolic savings.

objectiveTo explain the metabolic savings by comparing the mechanics of the shoes, leg, and foot joints during the stance phase of running.

methodsTen male competitive runners, who habitually rearfoot strike ran three 5-min trials in prototype shoes (NP) and two established marathon shoes, the Nike Zoom Streak 6 (NS) and the adidas adizero Adios BOOST 2 (AB), at 16 km/h. We measured ground reaction forces and 3D kinematics of the lower limbs.

resultsHip and knee joint mechanics were similar between the shoes, but peak ankle extensor moment was smaller in NP versus AB shoes. Negative and positive work rates at the ankle were lower in NP shoes versus the other shoes. Dorsiflexion and negative work at the metatarsophalangeal (MTP) joint were reduced in the NP shoes versus the other shoes. Substantial mechanical energy was stored/returned in compressing the NP midsole foam, but not in bending the carbon-fiber plate.

conclusionThe metabolic savings of the NP shoes appear to be due to: (1) superior energy storage in the midsole foam, (2) the clever lever effects of the carbon-fiber plate on the ankle joint mechanics, and (3) the stiffening effects of the plate on the MTP joint.

Indexed as

Biomechanical PhenomenaShoesSports EquipmentAdultAnkleCross-Over StudiesHip JointHumansKnee JointMaleRunningYoung Adult

Identifiers

PMID30460454
OpenAlexW2900576895

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.