Evidence map›Paper›PMID 1912915›Full record

Trial reportBMJ (Clinical research ed.)1991

A controlled study of eight months of physical training and reduction of blood pressure in children: the Odense schoolchild study.

H S Hansen, K Froberg, N Hyldebrandt, J R Nielsen

Abstract readClinical TrialRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in BMJ (Clinical research ed.), 1991. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 7 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

33 citing papers in PubMed, 7 syntheses or guidelines pooled it.

  1. Pooled it
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  6. Effect of school-based physical activity interventions on body mass index in children: a meta-analysis.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2009
    Pooled it
  7. Pooled it
  8. Impact on Physical Fitness of the Chinese CHAMPS: A Clustered Randomized Controlled Trial.International journal of environmental research and public health · 2019
    Trial
  9. Result of school-based intervention on cardiovascular risk factors.Scandinavian journal of primary health care · 2014
    Trial
  10. Trial
  11. Review
  12. Review
  13. Review
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  15. Article
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  18. Screening children for hypertension: the case against.Pediatric nephrology (Berlin, Germany) · 2018
    Review
  19. Article
  20. 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

4 authors.

H S HansenOdense Schoolchild Study Group, Denmark.
K Froberg
N Hyldebrandt
J R Nielsen

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo examine the effect of physical training on physical fitness and blood pressure in children aged 9-11 years.

designProspective randomised controlled intervention study of a sample of children drawn from a population survey of coronary risk factors in children.

settingOdense, Denmark. SUBJECTS: 69 children with mean blood pressure greater than or equal to 95th centile (hypertensive group) and 68 with mean blood pressure less than 95th centile (normotensive group), randomly selected from a population of 1369 children.

intervention67 children were randomised to receive three extra lessons a week of an ordinary school physical education programme for eight months.

main outcome measuresPhysical fitness assessed by calculation of maximum oxygen uptake and blood pressure recorded by one unblinded observer.

resultsAfter three months neither blood pressure nor physical fitness had changed significantly. After adjustment for values in weight, height, heart rate, and the variable in question before training physical fitness rose significantly at the end of eight months' training, by 3.7 mlO2/kg/min (95% confidence interval 2.2 to 5.3) in the normotensive training subgroup and by 2.1 mlO2/kg/min (0.1 to 4.2) in the hypertensive training subgroup compared with that in the controls. Systolic and diastolic blood pressures in the training subgroups fell significantly by 6.5 mm Hg (3.2 to 9.9) and 4.1 mm Hg (1.7 to 6.6) respectively in the normotensive group and by 4.9 mm Hg (0.7 to 9.2) and 3.8 mm Hg (0.9 to 6.6) respectively in the hypertensive group.

conclusionsPhysical training lowers blood pressure and improves physical fitness in children and might have implications for an important non-pharmacological approach to primary prevention of essential hypertension.

Indexed as

Physical Education and TrainingBlood PressureChildFemaleHumansHypertensionMalePatient CompliancePhysical FitnessProspective StudiesSex FactorsTime Factors

Identifiers

PMID1912915
PMCPMC1670972

What OpenQuestion holds

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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.