Evidence map›Paper›PMID 27439944›Full record

ReviewSports medicine (Auckland, N.Z.)2017

Combined Effects of Physical Activity and Obesity on Cognitive Function: Independent, Overlapping, Moderator, and Mediator Models.

Yu-Kai Chang, Chien-Heng Chu, Feng-Tzu Chen, Tsung-Min Hung, Jennifer L Etnier

Abstract readReview
PubMed Publisher
In one paragraph

Review in Sports medicine (Auckland, N.Z.), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Obesity and episodic memory function.The journal of physiological sciences : JPS · 2018
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Effect of exercise engagement and cardiovascular risk on neuronal injury.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023
    Article
  9. Review
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  11. Article
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  18. 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

5 authors.

Yu-Kai ChangGraduate Institute of Athletics and Coaching Science, National Taiwan Sport University, No. 250 Wenhua 1st Rd., Guishan, 333, Taoyuan, Taiwan, Republic of China. yukaichangnew@gmail.com.
Chien-Heng ChuGraduate Institute of Athletics and Coaching Science, National Taiwan Sport University, No. 250 Wenhua 1st Rd., Guishan, 333, Taoyuan, Taiwan, Republic of China.
Feng-Tzu ChenGraduate Institute of Athletics and Coaching Science, National Taiwan Sport University, No. 250 Wenhua 1st Rd., Guishan, 333, Taoyuan, Taiwan, Republic of China.
Tsung-Min HungDepartment of Physical Education, National Taiwan Normal University, Taipei, Taiwan, Republic of China.
Jennifer L EtnierDepartment of Kinesiology, The University of North Carolina at Greensboro, P.O. Box 26170, Greensboro, NC, 27402-6170, USA. jletnier@uncg.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This article reviews studies on physical activity, obesity, and cognition to explore how physical activity and obesity may work independently or together in affecting cognitive function. In particular, we propose six hypotheses derived from four conceptual models to advance our understanding of the combined effects of physical activity and obesity on cognition. The four conceptual models are distinguished by the presumed temporal relationship and the presumed correlation between physical activity and obesity and include an independent model, an overlapping model, a moderator model, and a mediator model. Among the 16 studies testing the effects of physical activity and obesity on cognition in a combined approach, the moderator model, viewing either physical activity or obesity as the potential moderator, was most frequently examined (n = 10), mediator (n = 3) and independent (n = 2) models received relatively less attention, and only a single study used an overlapping model. Results were mixed when considering the moderator, independent, and mediator models. The single study that took an overlapping model approach found support for the model hypothesis. One relevant observation from this review is that the variance within the small extant literature with respect to the choice of conceptual model limits our ability to make assertive conclusions relative to the relations among the examined variables. Given the logic supporting a combined effect of physical activity and obesity on cognition, researchers are encouraged to consider the possible models of the relationship as they design studies to further address this research question.

Indexed as

ExerciseObesityCognitionHumansModels, Theoretical

Identifiers

PMID27439944

What OpenQuestion holds

Textmetadata
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.