Evidence map›Paper›PMID 39297752›Full record

ArticleExperimental physiology2025

Reference values for respiratory muscle strength measured with the S-Index Test in well-trained athletes, e-sports athletes and age-matched controls.

Tomasz Kowalski, Adrian Wilk, Andrzej Klusiewicz, Wojciech Pawliczek, Szczepan Wiecha, Beata Szczepańska, Jadwiga Malczewska-Lenczowska

Abstract read
In one paragraph

Article in Experimental physiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Reference equation for measurement of the maximal dynamic inspiratory muscle pressure index (S-Index) in healthy Brazilian adults.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia · 2026
    Article
  6. Article
  7. Physiology and the Olympics.Experimental physiology · 2025
    Article
  8. Article
  9. Article
  10. Maximal dynamic inspiratory pressure: S-Index prediction values and diagnosis accuracy.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia · 2025
    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.

Tomasz KowalskiDepartment of Physiology, Institute of Sport-National Research Institute, Warsaw, Poland.ORCID https://orcid.org/0000-0003-1333-1725
Adrian WilkDepartment of Physiology, Institute of Sport-National Research Institute, Warsaw, Poland.
Andrzej KlusiewiczDepartment of Physical Education and Health in Biala Podlaska, Faculty in Biala Podlaska, Jozef Pilsudski University of Physical Education, Warsaw, Poland.
Wojciech PawliczekDepartment of Physical Education and Health in Biala Podlaska, Faculty in Biala Podlaska, Jozef Pilsudski University of Physical Education, Warsaw, Poland.
Szczepan WiechaDepartment of Physical Education and Health in Biala Podlaska, Faculty in Biala Podlaska, Jozef Pilsudski University of Physical Education, Warsaw, Poland.
Beata SzczepańskaDepartment of Nutrition Physiology, Institute of Sport-National Research Institute, Warsaw, Poland.
Jadwiga Malczewska-LenczowskaDepartment of Nutrition Physiology, Institute of Sport-National Research Institute, Warsaw, Poland.

Funding

Institute of Sport - National Research Institute, Warsaw, Poland 102.34/2023
6 · The paper itself

Abstract

Respiratory function assessment is crucial in optimizing athletic performance, safeguarding respiratory health, and ensuring athletes can perform at their peak potential while minimizing the risk of respiratory-related issues. The S-Index Test is a dynamic evaluation of respiratory muscle strength. However, no comprehensive reference values regarding the S-Index Test have been reported yet. A total of 597 participants performed the S-Index Test. They were either well-trained athletes (WTA), or e-sports athletes (ESA), or age-matched controls (AMC) groups. The differences in S-Index Test results between sexes and for group-sex, and performance calibre tier-sex interactions were examined. The relationships between S-Index Test results and age, anthropometric indices and training experience were assessed. Reference values for all the groups were provided. Amongst athletes, the highest values were observed in swimmers and rowers, and the lowest in figure skaters and runners. The S-Index Test results were different for the group-sex interaction (P = 0.004, 151.6 ± 29.0 cmH

Indexed as

AthletesMuscle StrengthRespiratory MusclesSportsAdolescentAdultAthletic PerformanceFemaleHumansMaleReference ValuesRespiratory Function TestsYoung Adultpowerbreatherespiratory muscle strengthS‐Index Test

Identifiers

PMID39297752
PMCPMC12576010

What OpenQuestion holds

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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.