Evidence map›Paper›PMID 41897212›Full record

ArticleHealthcare (Basel, Switzerland)2026

Back Muscle Strength Is Associated with Self-Reported Morning-Erection Frequency in Apparently Healthy Japanese Male University Students: A Cross-Sectional Study.

Yoshiaki Endo, Takazo Tanaka, Kosuke Kojo, Chiaki Matsumoto, Masahiro Kurobe, Hiroyuki Nishiyama, Tatsuya Takayama, Jun Miyazaki

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Healthcare (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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. 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

8 authors.

Yoshiaki EndoDepartment of Physical Therapy, School of Health Science, International University of Health and Welfare, 2600-1 Kitakanemaru, Otawara 324-8501, Tochigi, Japan.ORCID 0000-0002-5582-343X
Takazo TanakaDepartment of Urology, Tsukuba Gakuen Hospital, 2573-1 Kamiyokoba, Tsukuba 305-0854, Ibaraki, Japan.ORCID 0000-0002-0370-0323
Kosuke KojoDepartment of Urology, Institute of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Ibaraki, Japan.ORCID 0000-0002-6875-0874
Chiaki MatsumotoDepartment of Physical Therapy, School of Health Science, International University of Health and Welfare, 2600-1 Kitakanemaru, Otawara 324-8501, Tochigi, Japan.ORCID 0009-0007-1332-3633
Masahiro KurobeCenter for Human Reproduction, International University of Health and Welfare Hospital, 537-3 Iguchi, Nasushiobara 329-2763, Tochigi, Japan.ORCID 0000-0002-5819-523X
Hiroyuki NishiyamaDepartment of Urology, Institute of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Ibaraki, Japan.ORCID 0000-0001-7423-596X
Tatsuya TakayamaCenter for Human Reproduction, International University of Health and Welfare Hospital, 537-3 Iguchi, Nasushiobara 329-2763, Tochigi, Japan.ORCID 0000-0003-3360-7688
Jun MiyazakiDepartment of Urology, School of Medicine, International University of Health and Welfare, 4-3 Kozunomori, Narita 286-8686, Chiba, Japan.ORCID 0000-0002-3618-0432

Funding

Japan Science and Technology Agency JPMJPF2017
6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

adolescent and young adultbody compositionerectile dysfunctionhealth behaviorlifestyle factorsmuscle strengthnocturnal penile tumescencereproductive healthsexual functiontrunk muscles

Identifiers

PMID41897212
PMCPMC13027116

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.