Evidence map›Paper›PMID 33441596›Full record

ArticleScientific reports2021

Low fundamental and formant frequencies predict fighting ability among male mixed martial arts fighters.

Toe Aung, Stefan Goetz, John Adams, Clint McKenna, Catherine Hess, Stiven Roytman, Joey T Cheng, Samuele Zilioli, David Puts

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

12 citing papers in PubMed, 24 citations in OpenAlex.

  1. Intrasexual Selection for Upper Limb Length in Homo sapiens.American journal of human biology : the official journal of the Human Biology Council · 2025
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  6. Review
  7. Vocal Cues to Male Physical Formidability.Frontiers in psychology · 2022
    Article
  8. Article
  9. Predicting strength from aggressive vocalizations versus speech in African bushland and urban communities.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  10. Article
  11. Article
  12. 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

9 authors at 4 institutions in 2 countries.

Toe AungDepartment of Anthropology, The Pennsylvania State University, 409 Carpenter Building, University Park, PA, 16802, USA.
Stefan GoetzWayne State University, Detroit, USA.
John AdamsWayne State University, Detroit, USA.
Clint McKennaUniversity of Michigan, Ann Arbor, USA.
Catherine HessDepartment of Anthropology, The Pennsylvania State University, 409 Carpenter Building, University Park, PA, 16802, USA.
Stiven RoytmanWayne State University, Detroit, USA.
Joey T ChengYork University, Ontario, Canada.
Samuele ZilioliWayne State University, Detroit, USA.
David PutsDepartment of Anthropology, The Pennsylvania State University, 409 Carpenter Building, University Park, PA, 16802, USA. dap27@psu.edu.
Wayne State University · USPennsylvania State University · USUniversity of Michigan–Ann Arbor · USYork University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human voice pitch is highly sexually dimorphic and eminently quantifiable, making it an ideal phenotype for studying the influence of sexual selection. In both traditional and industrial populations, lower pitch in men predicts mating success, reproductive success, and social status and shapes social perceptions, especially those related to physical formidability. Due to practical and ethical constraints however, scant evidence tests the central question of whether male voice pitch and other acoustic measures indicate actual fighting ability in humans. To address this, we examined pitch, pitch variability, and formant position of 475 mixed martial arts (MMA) fighters from an elite fighting league, with each fighter's acoustic measures assessed from multiple voice recordings extracted from audio or video interviews available online (YouTube, Google Video, podcasts), totaling 1312 voice recording samples. In four regression models each predicting a separate measure of fighting ability (win percentages, number of fights, Elo ratings, and retirement status), no acoustic measure significantly predicted fighting ability above and beyond covariates. However, after fight statistics, fight history, height, weight, and age were used to extract underlying dimensions of fighting ability via factor analysis, pitch and formant position negatively predicted "Fighting Experience" and "Size" factor scores in a multivariate regression model, explaining 3-8% of the variance. Our findings suggest that lower male pitch and formants may be valid cues of some components of fighting ability in men.

Indexed as

AcousticsAdultAggressionAnthropometryAthletesBiomarkersCuesHumansMaleMartial ArtsPhenotypePitch DiscriminationSexual BehaviorSocial PerceptionVoiceBiomarkers

Identifiers

PMID33441596
PMCPMC7806622
OpenAlexW3119330846

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.