Evidence map›Paper›PMID 37588935›Full record

ArticleEvolutionary human sciences2022

Forest terrains influence walking kinematics among indigenous Tsimane of the Bolivian Amazon.

Nicholas B Holowka, Thomas S Kraft, Ian J Wallace, Michael Gurven, Vivek V Venkataraman

Open access · goldAbstract read
In one paragraph

Article in Evolutionary human sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

9 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
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

5 authors at 4 institutions in 2 countries.

Nicholas B HolowkaDepartment of Anthropology, University at Buffalo, Buffalo, NY, USA.ORCID https://orcid.org/0000-0003-0593-7524
Thomas S KraftDepartment of Anthropology, University of Utah, Salt Lake City, UT, USA.
Ian J WallaceDepartment of Anthropology, University of New Mexico, Albuquerque, NM, USA.ORCID https://orcid.org/0000-0002-1837-5260
Michael GurvenDepartment of Anthropology, University of California-Santa Barbara, Santa Barbara, CA, USA.
Vivek V VenkataramanDepartment of Anthropology and Archaeology, University of Calgary, Calgary, Canada.
University of California, Santa Barbara · USUniversity at Buffalo, State University of New York · USUniversity of Calgary · CAUniversity of New Mexico · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Laboratory-based studies indicate that a major evolutionary advantage of bipedalism is enabling humans to walk with relatively low energy expenditure. However, such studies typically record subjects walking on even surfaces or treadmills that do not represent the irregular terrains our species encounters in natural environments. To date, few studies have quantified walking kinematics on natural terrains. Here we used high-speed video to record marker-based kinematics of 21 individuals from a Tsimane forager-horticulturalist community in the Bolivian Amazon walking on three different terrains: a dirt field, a forest trail and an unbroken forest transect. Compared with the field, in the unbroken forest participants contacted the ground with more protracted legs and flatter foot postures, had more inclined trunks, more flexed hips and knees, and raised their feet higher during leg swing. In contrast, kinematics were generally similar between trail and field walking. These results provide preliminary support for the idea that irregular natural surfaces like those in forests cause humans to alter their walking kinematics, such that travel in these environments could be more energetically expensive than would be assumed from laboratory-based data. These findings have important implications for the evolutionary energetics of human foraging in environments with challenging terrains.

Indexed as

barefoot walkingbipedalismforager–horticulturalistLocomotor ecology

Identifiers

PMID37588935
PMCPMC10426037
OpenAlexW4224910140

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.