Evidence map›Paper›PMID 35235031›Full record

ArticleEuropean journal of applied physiology2022

Effects of vision on energy expenditure and kinematics during level walking.

Ola Eiken, Igor B Mekjavic, Jan Babič, Ulf Danielsson, Magnus Hallberg, Stylianos N Kounalakis

Open access · hybridAbstract read
In one paragraph

Article in European journal of applied physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

3 citing papers in PubMed, 5 citations in OpenAlex.

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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

6 authors at 4 institutions in 3 countries.

Ola EikenDivision of Environmental Physiology, School of Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Berzelius v. 13, 171 65, Stockholm, Sweden. eiken@kth.se.ORCID http://orcid.org/0000-0001-9738-9320
Igor B MekjavicDepartment of Automation, Robotics and Biocybernetics, Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia.ORCID http://orcid.org/0000-0001-5930-2159
Jan BabičDepartment of Automation, Robotics and Biocybernetics, Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia.ORCID http://orcid.org/0000-0002-1870-8264
Ulf DanielssonDivision of Environmental Physiology, School of Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Berzelius v. 13, 171 65, Stockholm, Sweden.ORCID http://orcid.org/0000-0001-6708-1528
Magnus HallbergThe Land Warfare Centre, Swedish Armed Forces, Kvarn 200, 590 28, Borensberg, Sweden.
Stylianos N KounalakisDepartment of Physical and Cultural Education, Evelpidon Hellenic Army Academy, Vari, Greece.ORCID http://orcid.org/0000-0002-7574-3517
Jožef Stefan Institute · SIKTH Royal Institute of Technology · SEHellenic Military Academy · GRSwedish Armed Forces · SE

Funding

försvarsmakten Grant No: 922: 0905
6 · The paper itself

Abstract

purposeWe have previously observed substantially higher oxygen uptake in soldiers walking on terrain at night than when performing the same walk in bright daylight. The aims of the present study were to investigate the influence of vision on mechanical efficiency during slow, horizontal, constant-speed walking, and to determine whether any vision influence is modified by load carriage.

methodsEach subject (n = 15) walked (3.3 km/h) for 10 min on a treadmill in four different conditions: (1) full vision, no carried load, (2) no vision, no carried load, (3) full vision with a 25.5-kg rucksack, (4) no vision with a 25.5-kg rucksack.

resultsOxygen uptake was 0.94 ± 0.12 l/min in condition (1), 1.15 ± 0.20 l/min in (2), 1.15 ± 0.12 l/min in (3) and 1.35 ± 0.19 l/min in (4). Thus, lack of vision increased oxygen uptake by about 19%. Analyses of movement pattern, by use of optical markers attached to the limbs and torso, revealed considerably shorter step length (12 and 10%) in the no vision (2 and 4) than full vision conditions (1 and 3). No vision conditions (2 and 4) increased step width by 6 and 6%, and increased vertical foot clearance by 20 and 16% compared to full vision conditions (1 and 3).

conclusionThe results suggest that vision has a marked influence on mechanical efficiency even during entrained, repetitive movements performed on an obstacle-free horizontal surface under highly predictable conditions.

Indexed as

Energy MetabolismWalkingBiomechanical PhenomenaExercise TestGaitHumansOxygenOxygenBlindfoldingCentre of massGait kinematicsLevel walkingOxygen consumptionVisual cues

Identifiers

PMID35235031
PMCPMC9012730
OpenAlexW4214844638

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.