Evidence map›Paper›PMID 38772534›Full record

ArticleThe world journal of men's health2025

Do Strength and Anthropometric Size of the Lower Body Correlate with Serum Testosterone Levels?

Tae Yong Park, Moon Young Choi, Doohwan Kong, Jeong Kyun Yeo, Min Gu Park

Abstract read
In one paragraph

Article in The world journal of men's health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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.

Tae Yong Park *Department of Medicine, Graduate School, Korea University, Seoul, Korea.ORCID https://orcid.org/0000-0002-6692-6397
Moon Young Choi *Department of Sports Science Convergence, Dongguk University, Seoul, Korea.ORCID https://orcid.org/0000-0002-1381-1166
Doohwan KongDepartment of Sports Medicine and Science, Graduate School, Konkuk University, Seoul, Korea.ORCID https://orcid.org/0000-0002-8140-9937
Jeong Kyun YeoDepartment of Urology, Inje University College of Medicine, Busan, Korea.ORCID https://orcid.org/0000-0001-5027-3451
Min Gu ParkDeparment of Urology, Korea University Anam Hospital, Seoul, Korea. uromgpark@gmail.com.ORCID https://orcid.org/0000-0001-5704-5320

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAlthough lower body strength and size are often regarded as symbols of masculinity, their relationship to testosterone is unclear. This study aimed to determine the correlation between lower body strength, size, and testosterone levels. MATERIALS AND

methodsSerum testosterone levels, waist circumference, and body mass index (BMI) were measured in 69 men with erectile dysfunction (age >40 years). The circumferences of the thigh and calf were measured, and the muscle strength of the knee joints was evaluated using an isokinetic dynamometer. Patients were classified into three groups according to testosterone levels (group 1, <230 ng/dL; group 2, 230 to 350 ng/dL; group 3, >350 ng/dL). Differences in calf and thigh circumference, bilateral knee extension, and flexion strength between the three groups were investigated using a one-way analysis of variance. Pearson's chi-square test was used to assess differences in lifestyle habits and underlying diseases. A partial correlation analysis was conducted to determine the association between testosterone levels and lower body size and strength.

resultsThere was no difference in BMI among the three groups, but waist circumference was significantly larger in group 1 than in groups 2 and 3. When comparing weight-adjusted values, bilateral thigh circumference showed a significant difference among the three groups. There was also a significant difference between the three groups in the weight-adjusted left calf circumference and in the weight-adjusted right knee extension strength. The partial correlation test showed a significant positive correlation between thigh and calf circumference values adjusted for weight and serum testosterone levels. Weight-adjusted knee extension strength demonstrated a significant positive correlation with serum testosterone levels.

conclusionsWeight-adjusted thigh and calf circumferences, along with the thigh-to-waist ratio, showed a positive correlation with testosterone levels. Weight-adjusted knee extension strength was positively correlated with testosterone levels. Therefore, a robust thigh and strong lower body are related to testosterone.

Indexed as

AnthropometryLower extremityMuscle strengthTestosterone

Identifiers

PMID38772534
PMCPMC11704164

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.