Evidence map›Paper›PMID 32951542›Full record

ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2020

Ageing and physical function in East African foragers and pastoralists.

M Katherine Sayre, Herman Pontzer, Gene E Alexander, Brian M Wood, Ivy L Pike, Audax Z P Mabulla, David A Raichlen

Open access · bronzeAbstract read
In one paragraph

Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.0field-weighted citation impact, top 25% 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

10 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. Low-to-Moderate Daytime Physical Activities Predicted Higher-Quality Sleep Among Habitually Active Agropastoralists.American journal of human biology : the official journal of the Human Biology Council · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. Lifestyle and patterns of physical activity in Hadza foragers.American journal of biological anthropology · 2023
    Article
  8. Evolutionary Approaches in Aging Research.Cold Spring Harbor perspectives in medicine · 2022
    Review
  9. The active grandparent hypothesis: Physical activity and the evolution of extended human healthspans and lifespans.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Review
  10. Insights from evolutionarily relevant models for human ageing.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    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

7 authors at 5 institutions in 3 countries.

M Katherine SayreHuman and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, CA 900079, USA.
Herman PontzerDepartment of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA.
Gene E AlexanderDepartments of Psychology and Psychiatry, University of Arizona, Tucson, AZ 85721, USA.
Brian M WoodDepartment of Anthropology, University of California Los Angeles, CA 90095, USA.
Ivy L PikeSchool of Anthropology, University of Arizona, Tucson, AZ 85721, USA.
Audax Z P MabullaDepartment of Archaeology, University of Dar es Salaam, Dar es Salaam, Tanzania.
David A RaichlenHuman and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, CA 900079, USA.
University of Arizona · USUniversity of Southern California · USDuke University · USUniversity of California, Los Angeles · USUniversity of Dar es Salaam · TZ

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
NCATS NIH HHS UL1 TR001863
6 · The paper itself

Abstract

Human lifespans are exceptionally long compared with those of other primates. A key element in exploring the evolution of human longevity is understanding how modern humans grow older. Our current understanding of common age-related changes in human health and function stems mostly from studies in industrialized societies, where older adulthood is often associated with an increased incidence of chronic diseases. However, individuals who engage in different lifestyles across industrialized and non-industrialized contexts may display variance in age-related changes in health and function. Here, we explore aspects of physical function in a non-industrialized context using three objective measures of physical function. We assessed physical activity levels, walking endurance and muscle strength in two East African populations: Hadza hunter-gatherers in Tanzania and Pokot pastoralists in Kenya. Both Hadza and Pokot participants displayed significant age-related differences in most, but not all, functional measures. Our results suggest that some age-related differences in physical function seen in industrialized contexts could be consistently experienced by most humans, while other age-related differences may vary across populations. Studies of ageing should expand to include a broad range of populations so we can create a more comprehensive understanding of how senescence varies across different lifestyle contexts. This article is part of the theme issue 'Evolution of the primate ageing process'.

Indexed as

AgingExerciseLife StyleMuscle StrengthPhysical EnduranceWalkingAdolescentAdultAgedAged, 80 and overChildChild, PreschoolFemaleHumansKenyaMaleageinghuman longevitynon-industrial societiesphysical activityphysical function

Identifiers

PMID32951542
PMCPMC7540945
OpenAlexW3087515089

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.