Evidence map›Paper›PMID 28465305›Full record

ArticleBMJ open2017

Effects of different amounts of exercise on preventing depressive symptoms in community-dwelling older adults: a prospective cohort study in Taiwan.

Yu-Chen Chang, Mei-Chun Lu, I-Han Hu, Wan-Chi Ida Wu, Susan C Hu

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMJ open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 4 pooled it
4.8field-weighted citation impact, top 5% 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

21 citing papers in PubMed, 4 syntheses or guidelines pooled it, 63 citations in OpenAlex.

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  5. Sex as a moderator of the association between cardiorespiratory fitness and depressive symptoms in older adults.The journals of gerontology. Series B, Psychological sciences and social sciences · 2026
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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 at 3 institutions in 1 country.

Yu-Chen ChangDepartment of Community Health, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, Taiwan.
Mei-Chun LuDepartment of Medical Research, Kuang Tien General Hospital, Taichung, Taiwan.
I-Han HuInstitute of Gerontology, National Cheng Kung University College of Medicine, Tainan, Taiwan.
Wan-Chi Ida WuDepartment of Public Health, National Cheng Kung University College of Medicine, Tainan, Taiwan.
Susan C HuDepartment of Public Health, National Cheng Kung University College of Medicine, Tainan, Taiwan.ORCID 0000-0003-2437-5918
National Cheng Kung University · TWChia-Yi Christian Hospital · TWKuang Tien General Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo compare the effects of four different amounts of exercise for preventing depressive symptoms in community-dwelling older adults.

designProspective cohort study.

settingA nationally representative sample in Taiwan.

participantsFour waves of the survey 'Taiwan Longitudinal Study on Aging (TLSA)' from 1996 to 2007 were analysed. A total of 2673 older adults aged 65 years and over were recruited. PRIMARY AND SECONDARY OUTCOME MEASURES: Depressive symptoms were measured using the Center for Epidemiologic Studies Depression Scale (CESD). Four different types/amounts of exercise were examined including: (1) 3 times/week, 15 min/time; (2) 3 times/week, 30 min/time; (3) 6 times/week, 15 min/time; and (4) 6 times/week, 30 min/time. All exercise types were required to have at least moderate intensity. The impacts of different amounts of exercise on depressive symptoms were analysed using generalised linear mixed models.

resultsMore than one-fifth of the elder individuals under consideration had depressive symptoms (CESD ≥10). About 38.6% of older adults met the lowest criteria for exercise type 1, and fewer (28.0%) met the highest criteria for type 4. Only exercise type 4 in the current survey was initially related to lower depressive symptoms (OR=0.8, 95% CI 0.66 to 0.95). However, after considering the interaction between time and changes in exercise patterns, the results showed that all persistent exercise models, even if a very low amount (3 times/week, 15 min/time), had significantly preventive effects on depressive symptoms (OR=0.56~0.67).

conclusionConsistent exercise with at least 15 min per time, three times a week of moderate intensity is significantly associated with lower risk of depressive symptoms. This low amount of exercise may be easier to promote at the community and population level than other alternatives.

trial registrationRegistry number 104040 of the Institutional Ethics Committee of Chia-Yi Christian Hospital.

Indexed as

Health PromotionAgedAged, 80 and overAsian PeopleDepressionExerciseFemaleHumansIndependent LivingLongitudinal StudiesMaleProspective StudiesTaiwanTreatment Outcomecohort study.depressionelderlyExercisegeneralized linear mixed modelsmental health

Identifiers

PMID28465305
PMCPMC5623457
OpenAlexW2610245102

What OpenQuestion holds

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LicenceCC BY-NC
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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.