Evidence map›Paper›PMID 24349546›Full record

Trial reportPloS one2013

Heart rate variability and blood pressure during dynamic and static exercise at similar heart rate levels.

Matthias Weippert, Kristin Behrens, Annika Rieger, Regina Stoll, Steffi Kreuzfeld

Abstract readClinical Trial
In one paragraph

Trial report in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 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

40 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Green Exercise: Can Nature Video Benefit Isometric Exercise?International journal of environmental research and public health · 2021
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  15. Multimodal Approach to Assess a Virtual Reality-based Surgical Training Platform.Virtual, augmented and mixed reality : 15th International Conference, VAMR 2023, held as part of the 25th HCI International Conference, HCII 2023, Copenhagen, Denmark, July 23-28, 2023, proceedings. VAMR (Conference) (15th : 2023 : Cope... · 2023
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  16. Entropy of Heart Rate on Self-Selected Interval Exercises in Older Women.International journal of exercise science · 2023
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  19. Heart Rate Variability Monitoring during a Padel Match.International journal of environmental research and public health · 2022
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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

5 authors.

Matthias WeippertInstitute of Preventive Medicine, University of Rostock Medical School, Rostock, Mecklenburg-Vorpommern, Germany ; Center for Life Science Automation, University of Rostock, Rostock, Mecklenburg-Vorpommern, Germany.
Kristin BehrensInstitute of Preventive Medicine, University of Rostock Medical School, Rostock, Mecklenburg-Vorpommern, Germany.
Annika RiegerCenter for Life Science Automation, University of Rostock, Rostock, Mecklenburg-Vorpommern, Germany.
Regina StollInstitute of Preventive Medicine, University of Rostock Medical School, Rostock, Mecklenburg-Vorpommern, Germany.
Steffi KreuzfeldInstitute of Preventive Medicine, University of Rostock Medical School, Rostock, Mecklenburg-Vorpommern, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

unlabelledAim was to elucidate autonomic responses to dynamic and static (isometric) exercise of the lower limbs eliciting the same moderate heart rate (HR) response.

method23 males performed two kinds of voluntary exercise in a supine position at similar heart rates: static exercise (SE) of the lower limbs (static leg press) and dynamic exercise (DE) of the lower limbs (cycling). Subjective effort, systolic (SBP) and diastolic blood pressure (DBP), mean arterial pressure (MAP), rate pressure product (RPP) and the time between consecutive heart beats (RR-intervals) were measured. Time-domain (SDNN, RMSSD), frequency-domain (power in the low and high frequency band (LFP, HFP)) and geometric measures (SD1, SD2) as well as non-linear measures of regularity (approximate entropy (ApEn), sample entropy (SampEn) and correlation dimension D2) were calculated.

resultsAlthough HR was similar during both exercise conditions (88±10 bpm), subjective effort, SBP, DBP, MAP and RPP were significantly enhanced during SE. HRV indicators representing overall variability (SDNN, SD 2) and vagal modulated variability (RMSSD, HFP, SD 1) were increased. LFP, thought to be modulated by both autonomic branches, tended to be higher during SE. ApEn and SampEn were decreased whereas D2 was enhanced during SE. It can be concluded that autonomic control processes during SE and DE were qualitatively different despite similar heart rate levels. The differences were reflected by blood pressure and HRV indices. HRV-measures indicated a stronger vagal cardiac activity during SE, while blood pressure response indicated a stronger sympathetic efferent activity to the vessels. The elevated vagal cardiac activity during SE might be a response mechanism, compensating a possible co-activation of sympathetic cardiac efferents, as HR and LF/HF was similar and LFP tended to be higher. However, this conclusion must be drawn cautiously as there is no HRV-marker reflecting "pure" sympathetic cardiac activity.

Indexed as

AdultBlood PressureExerciseHeart RateHumansLower ExtremityMale

Identifiers

PMID24349546
PMCPMC3862773

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.