Evidence map›Paper›PMID 41704675›Full record

ArticleInternational journal of cardiology. Cardiovascular risk and prevention2026

Are there reliable primary indicators of cardiorespiratory fitness in physically active students?

Klaus Christian Haggenmüller, Sebastian Freilinger, Nils Olson, Jochen Weil, Thorsten Schulz, Renate Maria Oberhoffer, Barbara Reiner

Abstract read
In one paragraph

Article in International journal of cardiology. Cardiovascular risk and prevention, 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

7 authors.

Klaus Christian HaggenmüllerChair of Preventive Pediatrics, Department of Health and Sport Science, School of Medicine and Health, Technical University of Munich, Am Olympiacampus 11, 80809, Munich, Germany.
Sebastian FreilingerChair of Preventive Pediatrics, Department of Health and Sport Science, School of Medicine and Health, Technical University of Munich, Am Olympiacampus 11, 80809, Munich, Germany.
Nils OlsonChair of Preventive Pediatrics, Department of Health and Sport Science, School of Medicine and Health, Technical University of Munich, Am Olympiacampus 11, 80809, Munich, Germany.
Jochen WeilGerman Heart Centre Munich, Hospital of the Technical University of Munich, Lazarettstraße 36, 80636, Munich, Germany.
Thorsten SchulzChair of Preventive Pediatrics, Department of Health and Sport Science, School of Medicine and Health, Technical University of Munich, Am Olympiacampus 11, 80809, Munich, Germany.
Renate Maria OberhofferChair of Preventive Pediatrics, Department of Health and Sport Science, School of Medicine and Health, Technical University of Munich, Am Olympiacampus 11, 80809, Munich, Germany.
Barbara ReinerChair of Preventive Pediatrics, Department of Health and Sport Science, School of Medicine and Health, Technical University of Munich, Am Olympiacampus 11, 80809, Munich, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Cardiorespiratory fitness is a central component of preventive sports medical assessments and plays a crucial role in early identification of health risk factors in asymptomatic populations as well as evaluating physical performance. Preventive examinations in sports medicine frequently include the assessment of Handgrip-Strength (HGS), International Physical Activity Questionnaire (IPAQ), or Medical History Interviews (MHI). The aim of this study is to investigate whether one of these can serve as a valid surrogate marker for cardiorespiratory fitness. Methods: A total of 552 university students (mean age: 21.0 ± 3.79 years (37.5% male) underwent a standardized sports medical and motor performance assessment including Cardiopulmonary Exercise Testing (CPET) on a bicycle ergometer, IPAQ, HGS testing, and a structured MHI. Associations between VO Results: The parameters with the highest explanatory values were HGS (R = 0.439, p < .001) and MHI (R = 0.323, p < .001). The combination of these two parameters (HGS and MHI) had an explanatory value of R Conclusions: Maximal HGS and MHI showed potential as first-level indicators of cardiovascular fitness and in combination they may support screening in settings with limited resources and can be used for risk group identification. However, for medical applications the Cardiopulmonary Exercise Testing remains indispensable for an accurate and comprehensive assessment of individual cardiovascular fitness.

Indexed as

Cardio pulmonary exercise testingCardiovascular fitnessHandgrip-strengthInternational physical activity questionnaireMedical history interview

Identifiers

PMID41704675
PMCPMC12907667

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Registered trials

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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.