Evidence map›Paper›PMID 34046525›Full record

ArticleBMJ open ophthalmology2021

Intraocular pressure fluctuation during resistance exercise.

Ehsan Vaghefi, Catherine Shon, Stacey Reading, Taylor Sutherland, Victor Borges, Geraint Phillips, Rachael L Niederer, Helen Danesh-Meyer

Open access · goldAbstract read
In one paragraph

Article in BMJ open ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.0field-weighted citation impact, top 9% of its field
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

9 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
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  6. Influence of the body positions adopted for resistance training on intraocular pressure: a comparison between the supine and seated positions.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023
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  7. Review
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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

8 authors at 1 institution in 1 country.

Ehsan VaghefiOptometry and Vision Sciences, The University of Auckland, Auckland, New Zealand.ORCID 0000-0002-9482-3168
Catherine ShonOptometry and Vision Sciences, The University of Auckland, Auckland, New Zealand.
Stacey ReadingSports Sciences, The University of Auckland, Auckland, New Zealand.
Taylor SutherlandSports Sciences, The University of Auckland, Auckland, New Zealand.
Victor BorgesSports Sciences, The University of Auckland, Auckland, New Zealand.
Geraint PhillipsOptometry and Vision Sciences, The University of Auckland, Auckland, New Zealand.
Rachael L NiedererOphthalmology, Greenlane Clinical Centre, Auckland, New Zealand.ORCID 0000-0002-4311-859X
Helen Danesh-MeyerDepartment of Ophthalmology, University of Auckland, Auckland, New Zealand.
University of Auckland · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the effect of weightlifting (leg press) on intraocular pressure (IOP).

designProspective cohort study. SUBJECTS: A total of 24 participants met the inclusion criteria and completed the study procedures. Participants had an average age of 22.7±2.7 years and included nine women. The mean baseline IOP was 13.9 mm Hg (SD=2.4) with an average body mass index of 24.5 (SD= 3.1).

methodsThe maximum load for a single lift was found for each participant. Participants then performed three leg press regimens: one repetition using 95% of maximal load (1RM), six repetitions using 75% of maximal load (6RM) and isometric push against a weight much heavier than maximal load (ISO).

main outcome measureIOP was measured pre-exercise, during and immediately following the exercise using an iCare TA01i rebound tonometer. Blood pressure and HR were being monitored continuously during the lift. Optical coherence tomography images were obtained pre and postexercise session.

resultsThe average maximum weight lifted by our participants was 331.9 Kg (SD=97.3). Transient increased IOP was observed across the 1RM, 6RM and ISO exercises with an average increase in 26.4 mm Hg (23.7 mm Hg to 28.7 mm Hg) to reach an average max IOP of 40.7 mm Hg (27.8 mm Hg to 54.2 mm Hg), with an absolute maximum of 70 mm Hg in one participant.

conclusionsThere is a transient and dramatic fluctuation in IOP with resistance training. This coupled with regular exposure to resistance training is potentially a significant risk factor for glaucoma. It should be noted that this study has been carried out in a healthy young population, and, thus, the external validity of these results in glaucoma participants requires further investigation.

Indexed as

glaucomaintraocular pressure

Identifiers

PMID34046525
PMCPMC8126276
OpenAlexW3162877359

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.