Evidence map›Paper›PMID 39985274›Full record

Trial reportExperimental physiology2025

Repetition-dependent acute cardiopulmonary responses during intensity-matched squats in males.

Johannes Lässing, Sonja Hummelmann, Maxi Kramer, Ulrich Laufs, Sven Fikenzer, Roberto Falz

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Experimental physiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Trial
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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

6 authors.

Johannes LässingDepartment of Exercise Science & Sports Medicine, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.ORCID https://orcid.org/0000-0001-6109-4061
Sonja HummelmannInstitute of Sports Medicine and Prevention, University of Leipzig, Leipzig, Germany.
Maxi KramerInstitute of Sports Medicine and Prevention, University of Leipzig, Leipzig, Germany.
Ulrich LaufsUniversity Leipzig, Medizinische Fakultät, Leipzig, Germany.
Sven FikenzerUniversity Leipzig, Medizinische Fakultät, Leipzig, Germany.
Roberto FalzInstitute of Sports Medicine and Prevention, University of Leipzig, Leipzig, Germany.ORCID https://orcid.org/0000-0002-9956-7538

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The 'strength-endurance continuum' is a key concept in strength training (ST). Although cardiopulmonary responses have seldom been reported in conjunction with ST, this repeated-measurement study examined acute blood pressure and haemodynamic responses continuously depending on the number of repetitions but without changing the intensity. Fifteen healthy male participants (21.6 (2.0) years; mean (SD)) performed an incremental exercise test and a 3-repetition maximum test (3-RM) on a Smith machine. They were then randomly assigned to three ST sessions involving 10, 20 and 30 repetitions at 50% of their 3-RM. Blood pressure (vascular unloading technique) and cardiopulmonary responses (spirometry and impedance cardiography) were continuously monitored. Heart rate (121 (10) vs. 139 (22) vs. 153 (13) bpm, P = 0.001, respectively), cardiac output (10.4 (1.9) vs. 13.6 (3.8) vs. 14.6 (3.1) L/min, P = 0.001, respectively) and diastolic blood pressure (113 (8) vs. 116 (21) vs. 135 (22) mmHg, P = 0.001, respectively) increased in the training sessions with higher repetitions. Stroke volume, systolic blood pressure and end-diastolic volume indicated no change in peak values between training sessions. Total peripheral resistance (13.6 (2.8) vs. 11.3 (3.6) vs. 11.2 (3.1) mmHg min/L, P = 0.002, respectively) was significantly lower with 20 and 30 repetitions, while oxygen uptake (

Indexed as

Physical EnduranceResistance TrainingAdultBlood PressureCardiac OutputCardiography, ImpedanceExerciseExercise TestHeart RateHemodynamicsHumansMaleMuscle StrengthOxygen ConsumptionStroke VolumeYoung Adultblood pressure responsecardiovascular responseheart ratesquatstrength–endurance continuumstrength training

Identifiers

PMID39985274
PMCPMC12314652

What Socratic 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 Socratic graph.