Evidence map›Paper›PMID 30359727›Full record

ArticleNeurobiology of learning and memory2018

The effect of energy-matched exercise intensity on brain-derived neurotrophic factor and motor learning.

Jessica F Baird, Mary E Gaughan, Heath M Saffer, Mark A Sarzynski, Troy M Herter, Stacy L Fritz, Dirk B den Ouden, Jill Campbell Stewart

Abstract read
In one paragraph

Article in Neurobiology of learning and memory, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 19% 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

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  6. Modulation of premotor cortex response to sequence motor learning during escitalopram intake.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
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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.

Jessica F BairdDepartment of Exercise Science, University of South Carolina, 921 Assembly St, Columbia, SC 29208, United States.
Mary E GaughanDepartment of Exercise Science, University of South Carolina, 921 Assembly St, Columbia, SC 29208, United States.
Heath M SafferDepartment of Exercise Science, University of South Carolina, 921 Assembly St, Columbia, SC 29208, United States.
Mark A SarzynskiDepartment of Exercise Science, University of South Carolina, 921 Assembly St, Columbia, SC 29208, United States.
Troy M HerterDepartment of Exercise Science, University of South Carolina, 921 Assembly St, Columbia, SC 29208, United States.
Stacy L FritzDepartment of Exercise Science, University of South Carolina, 921 Assembly St, Columbia, SC 29208, United States.
Dirk B den OudenDepartment of Communication Sciences and Disorders, University of South Carolina, 915 Greene St, Columbia, SC 29208, United States.
Jill Campbell StewartDepartment of Exercise Science, University of South Carolina, 921 Assembly St, Columbia, SC 29208, United States. Electronic address: jcstewar@mailbox.sc.edu.
University of South Carolina · US

Funding

Interdisciplinary Training in Pathobiology and Rehabilitation Medicine.T32HD071866 · NICHD · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI JAMES RIMMER, Anna E. Thalacker-Mercer · 2012 to 2026
$4.8M
The essentiality of serine and glycine for skeletal muscle regeneration in agingR01AG075059 · NIA · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI THALACKER-MERCER, ANNA E. · 2022 to 2025
$1.5M
American Heart Association-American Stroke Association 15SDG24970011NIA NIH HHS R01 AG075059NICHD NIH HHS T32 HD071866
6 · The paper itself

Abstract

backgroundPairing a bout of high-intensity exercise with motor task practice can enhance motor learning beyond task practice alone, which is thought, in part, to be facilitated by an exercise-related increase in brain-derived neurotrophic factor (BDNF). The purpose of the current study was to examine the effect of different exercise intensities on BDNF levels and motor learning while controlling for exercise-related energy expenditure.

methodsForty-eight young, healthy participants were assigned to one of three groups: high-intensity exercise [High], low-intensity exercise [Low], or quiet rest [Rest]. The duration of the exercise bouts were individually adjusted so that each participant expended 200 kcals regardless of exercise intensity. BDNF was measured before and after exercise or rest. After exercise or rest, all participants practiced a 3-dimensional motor learning task, which involved reach movements made to sequentially presented targets. Retention was tested after 24-h. BDNF genotype was determined for each participant to explore its effects on BDNF and motor learning.

resultsAll participants equally improved performance, indicated by a reduction in time to complete the task. However, the kinematic profile used to control the reach movement differed by group. The Rest group travelled the shortest distance between the targets, the High group had higher reach speed (peak velocity), and the Low group had earlier peak velocities. The rise in BDNF post-exercise was not significant, regardless of exercise intensity, and the change in BDNF was not associated with motor learning. The BDNF response to exercise did not differ by genotype. However, performance differed between those with the polymorphism (Met carriers) and those without (Val/Val). Compared to the Val/Val genotype, Met carriers had faster response times throughout task practice, which was supported by higher reach speeds and earlier peak velocities.

conclusionResults indicated that both low and high-intensity exercise can alter the kinematic approach used to complete a reach task, and these changes appear unrelated to a change in BDNF. In addition, the BDNF genotype did not influence BDNF concentration, but it did have an effect on motor performance of a sequential target reach task.

Indexed as

AdultBiomechanical PhenomenaBrain-Derived Neurotrophic FactorExerciseFemaleHumansLearningMaleMotor SkillsReaction TimeYoung AdultBDNF protein, humanBrain-Derived Neurotrophic FactorAcute exerciseBrain-derived neurotrophic factorExercise intensityMotor learning

Identifiers

PMID30359727
PMCPMC6498427
OpenAlexW2896776311

What OpenQuestion holds

Textmetadata
LicenceTDM
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.