Evidence map›Paper›PMID 30913160›Full record

Trial reportMedicine and science in sports and exercise2019

Blood Flow-restricted Exercise Does Not Induce a Cross-Transfer of Effect: A Randomized Controlled Trial.

Kwasi Ampomah, Shinichi Amano, Nathan P Wages, Lauren Volz, Rachel Clift, Arimi Fitri Mat Ludin, Masato Nakazawa, Timothy D Law, Todd M Manini, James S Thomas and 2 more

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Medicine and science in sports and exercise, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Observational
  7. Review
  8. 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

12 authors at 2 institutions in 2 countries.

Kwasi AmpomahOhio Musculoskeletal and Neurological Institute (OMNI), Ohio University, Athens, OH.
Shinichi AmanoOhio Musculoskeletal and Neurological Institute (OMNI), Ohio University, Athens, OH.
Nathan P WagesOhio Musculoskeletal and Neurological Institute (OMNI), Ohio University, Athens, OH.
Lauren VolzOhio Musculoskeletal and Neurological Institute (OMNI), Ohio University, Athens, OH.
Rachel CliftClinical and Translational Research Unit (CTRU), Ohio University, Athens, OH.
Arimi Fitri Mat LudinOhio Musculoskeletal and Neurological Institute (OMNI), Ohio University, Athens, OH.
Masato NakazawaOhio Musculoskeletal and Neurological Institute (OMNI), Ohio University, Athens, OH.
Timothy D LawOhio Musculoskeletal and Neurological Institute (OMNI), Ohio University, Athens, OH.
Todd M ManiniInstitute on Aging and the Department of Geriatric Medicine, University of Florida, Gainesville, FL.
James S ThomasOhio Musculoskeletal and Neurological Institute (OMNI), Ohio University, Athens, OH.
David W RussOhio Musculoskeletal and Neurological Institute (OMNI), Ohio University, Athens, OH.
Brian C ClarkOhio Musculoskeletal and Neurological Institute (OMNI), Ohio University, Athens, OH.
Ohio University · USUniversity of Florida · US

Funding

Novel Exercise Interventions to Improve Trunk Muscle Function: A Pilot StudyR21AR063909 · NIAMS · OHIO UNIVERSITY ATHENS · PI CLARK, BRIAN C · 2014 to 2015
$359k
NIAMS NIH HHS R21 AR063909
6 · The paper itself

Abstract

purposeThe goal of this trial was to determine whether low-load blood flow-restricted (BFR) exercise of appendicular muscles induces a cross-transfer of effect to the trunk extensor (TE) muscles, such that low-load TE exercise would enhance TE size and function to a greater extent than standard low-load exercise in people with recurrent low back pain (LBP). We also investigated the direct effects of BFR exercise in the appendicular muscles.

methodsThirty-two adults with recurrent, nonspecific LBP were randomized into two groups: Appendicular BFR exercise (BFR exercise) or control exercise (CON exercise). All participants trained (two times per week) for 10 wk, with a 12-wk follow-up. Participants performed three sets of leg extension (LE), plantar flexion (PF), and elbow flexion (EF) exercises followed by low-load TE exercise without BFR. Outcome measures included magnetic resonance imaging-derived muscle size (quadriceps and TE), strength (LE, PF, EF, and TE), and endurance (LE and TE).

resultsThere was no evidence for a cross-transfer of effect to the TE. There was also no statistically significant enhancement of limb skeletal muscle size or function of BFR relative to CON exercise at any time point; though, moderate effect sizes for BFR exercise were observed for enhanced muscle size and strength in the leg extensors.

conclusionsLow-load BFR exercise of the appendicular muscles did not result in a cross-transfer of effect to the TE musculature. There was also no significant benefit of low-load BFR exercise on the appendicular muscle size and function, suggesting no benefit from low-load BFR exercise in adults with recurrent, nonspecific LBP.

Indexed as

AdultArmExercise TherapyFemaleHumansLegLow Back PainMagnetic Resonance ImagingMaleMuscle, SkeletalMuscle StrengthRecurrenceRegional Blood FlowResistance TrainingSingle-Blind MethodYoung Adult

Identifiers

PMID30913160
PMCPMC6697223
OpenAlexW2932707089

What OpenQuestion 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 OpenQuestion graph.