Evidence map›Paper›PMID 35718862›Full record

Trial reportThe journal of nutrition, health & aging2022

Effect of Diet, Exercise, or Both on Biological Age and Healthy Aging in Older Adults with Obesity: Secondary Analysis of a Randomized Controlled Trial.

E Ho, C Qualls, D T Villareal

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in The journal of nutrition, health & aging, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

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

  1. Clarifying healthy aging: building a common language for policy innovation within the Age-It Research Program.The journals of gerontology. Series B, Psychological sciences and social sciences · 2025
    Pooled it
  2. Trial
  3. Article
  4. Histone modification clocks for robust cross-species biological age prediction and elucidating senescence regulation.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. No winners or losers: clinical chemistry-based biological aging metrics perform similarly across cohorts and health outcomes.The journals of gerontology. Series A, Biological sciences and medical sciences · 2025
    Article
  11. Article
  12. Article
  13. Article
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  15. Article
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  17. 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

3 authors.

E HoDennis T. Villareal, MD, Baylor College of Medicine, Michael E DeBakey VA Medical Center, 2002 Holcombe Ave, Houston, TX 77030, USA, Email: dennis.villareal@bcm.edu.
C Qualls
D T Villareal

Funding

WU P&FP30DK020579 · NIDDK · WASHINGTON UNIVERSITY · PI Clay F. Semenkovich · 2013 to 2026
$27.1M
EXERCISE INTERVENTIONS DURING VOLUNTARY WEIGHT LOSS IN OBESE OLDER ADULTSR01AG031176 · NIA · WASHINGTON UNIVERSITY · PI VILLAREAL, DENNIS T. · 2009 to 2016
$2.3M
Weight Loss and Exercise in Frail Obese Elderly SubjectsR01AG025501 · NIA · WASHINGTON UNIVERSITY · PI VILLAREAL, DENNIS T. · 2005 to 2009
$1.7M
NIA NIH HHS R01 AG025501NIA NIH HHS R01 AG031176NIDDK NIH HHS P30 DK020579
6 · The paper itself

Abstract

objectivesTo determine the effect of diet, exercise, and diet-exercise in combination on measures of biological age.

designSecondary analysis of a 1-year randomized, controlled trial.

settingUniversity-based Medical Center.

participantsOne-hundred-seven older (age≥65 yrs.) adults with obesity (BMI≥30 kg/m2) were randomized and 93 completed the study. Analyses used intention-to-treat.

interventionsParticipants were randomized to a control group, a weight-management (diet) group, an exercise group, or a weight-management-plus-exercise (diet-exercise) group.

main outcome measuresWe calculated Klemera-Doubal Method (KDM) biological age, Homeostatic Dysregulation (HD) score, and Health Aging Index (HAI) score at baseline, and changes at 6- and 12-months.

resultsDiet and diet-exercise decreased KDM biological age more than exercise and control (-2.4±0.4, -2.2±0.3, -0.2±0.4, and 0.2±0.5, respectively, P<0.05 for the between group-differences). Diet and diet-exercise also decreased HD score more than exercise and control (-1.0±0.3, -1.1±0.3, 0.1±0.3, and 0.3±0.3 respectively, P<0.05). Moreover, diet-exercise decreased HAI score more than exercise, diet, or control (-1.1±0.2, -0.5±0.2, -0.5±0.2, and 0.0±0.2, respectively, P<0.05).

conclusionsThese findings suggest that diet and diet-exercise are both effective methods of improving biological age, and that biological age may be a valuable method of assessing geroprotective interventions in older humans.

Indexed as

Healthy AgingWeight LossAgedAgingDiet, ReducingHumansObesityBiological agedietexerciselifestyleolder adults with obesity

Identifiers

PMID35718862
PMCPMC9236175

What Socratic 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 Socratic graph.