Evidence map›Paper›PMID 36710801›Full record

ArticleFrontiers in psychology2022

Too much is too little: Estimating the optimal physical activity level for a healthy mental state.

Akiyoshi Shimura, Jiro Masuya, Katsunori Yokoi, Chihiro Morishita, Masayuki Kikkawa, Kazuki Nakajima, Chong Chen, Shin Nakagawa, Takeshi Inoue

Abstract read
In one paragraph

Article in Frontiers in psychology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

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

  1. Pooled it
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  8. Impact of Pediatric Leukemia on Maternal Anxiety, Depression, Sleep Quality, and Physical Activity.Medical science monitor : international medical journal of experimental and clinical research · 2025
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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

9 authors.

Akiyoshi ShimuraDepartment of Psychiatry, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.
Jiro MasuyaDepartment of Psychiatry, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.
Katsunori YokoiSchool of Medicine, International University of Health and Welfare, Chiba, Japan.
Chihiro MorishitaDepartment of Psychiatry, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.
Masayuki KikkawaDepartment of Psychiatry, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.
Kazuki NakajimaDepartment of Psychiatry, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.
Chong ChenDivision of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan.
Shin NakagawaDivision of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan.
Takeshi InoueDepartment of Psychiatry, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Although physical activity and exercise are generally thought to have favorable effects on mental health, excessive physical activity may have unfavorable effects. In this study, the associations between physical activity and the states of mental health with U-shaped dose-response curves were hypothesized, and the ranges of physical activity resulting in optimal effects on mental health were investigated. Methods: A cross-sectional survey was conducted on 1,237 adult volunteers in 2017 and 2018. Of these volunteers, 526 participants validly answered the self-administered questionnaires asking about physical activity, depression, anxiety, resilience, insomnia vulnerability, and life events. A comparison of mental health measures by physical activity levels and quadratic equation model regressions were performed. Results: No significant linear associations between physical activity levels and mental health measurements were observed; however, the U-shaped, quadratic equation models indicated a significance. The following levels of physical activity per week optimized the mental health measurements values of the participants: 6,953 MET-minutes and 25.70 h for depression, 5,277 MET-minutes and 21.60 h for state anxiety, 5,678 MET-minutes and 22.58 h for trait anxiety, 25.41 h for resilience, and 9,152 MET-minutes and 31.17 h for insomnia vulnerability. Conclusion: Physical activities in the optimal range were associated with more favorable mental health measurements. Physical activities that were too much or too long and outside of the optimal range were associated with less favorable mental health measurements.

Indexed as

anxietydepressionexerciseinsomnia vulnerabilitymental healthoptimal levelphysical activityresilience

Identifiers

PMID36710801
PMCPMC9881726

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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.