Evidence map›Paper›PMID 34406407›Full record

Trial reportThe journals of gerontology. Series A, Biological sciences and medical sciences2022

Weight Loss and Exercise Differentially Affect Insulin Sensitivity, Body Composition, Cardiorespiratory Fitness, and Muscle Strength in Older Adults With Obesity: A Randomized Controlled Trial.

Andrea M Brennan, Robert A Standley, Steven J Anthony, Kory E Grench, Nicole L Helbling, James P DeLany, Heather H Cornnell, Fanchao Yi, Maja Stefanovic-Racic, Frederico G S Toledo and 3 more

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The journals of gerontology. Series A, Biological sciences and medical sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 7 pooled it
3.0field-weighted citation impact, top 8% 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

35 citing papers in PubMed, 7 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. EffectS of Lifestyle Interventions in Older PEople With Obesity (Effective SLOPE): a Systematic Review With Network Meta-Analyses.Obesity reviews : an official journal of the International Association for the Study of Obesity · 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

13 authors at 2 institutions in 1 country.

Andrea M BrennanAdventHealth, Translational Research Institute, Orlando, Florida, USA.
Robert A StandleyAdventHealth, Translational Research Institute, Orlando, Florida, USA.
Steven J AnthonyDivision of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pennsylvania, USA.
Kory E GrenchAdventHealth, Translational Research Institute, Orlando, Florida, USA.
Nicole L HelblingDivision of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pennsylvania, USA.
James P DeLanyAdventHealth, Translational Research Institute, Orlando, Florida, USA.
Heather H CornnellAdventHealth, Translational Research Institute, Orlando, Florida, USA.
Fanchao YiAdventHealth, Translational Research Institute, Orlando, Florida, USA.
Maja Stefanovic-RacicDivision of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pennsylvania, USA.
Frederico G S ToledoDivision of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pennsylvania, USA.
Paul M CoenAdventHealth, Translational Research Institute, Orlando, Florida, USA.
Elvis A CarneroAdventHealth, Translational Research Institute, Orlando, Florida, USA.
Bret H GoodpasterAdventHealth, Translational Research Institute, Orlando, Florida, USA.
Translational Research Institute for Metabolism and Diabetes · USUniversity of Pittsburgh · US

Funding

Skeletal Muscle Lipid and Insulin Resistance in AgingR01AG021961 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GOODPASTER, BRET H · 2004 to 2015
$4.1M
NIA NIH HHS R01 AG021961
6 · The paper itself

Abstract

backgroundAging-related disease risk is exacerbated by obesity and physical inactivity. It is unclear how weight loss and increased activity improve risk in older adults. We aimed to determine the effects of diet-induced weight loss with and without exercise on insulin sensitivity, VO2peak, body composition, and physical function in older obese adults.

methodsPhysically inactive older (68.6 ± 4.5 years) obese (body mass index 37.4 ± 4.9 kg/m2) adults were randomized to health education control (HEC; n = 25); diet-induced weight loss (WL; n = 31); or weight loss and exercise (WLEX; n = 28) for 6 months. Insulin sensitivity was measured by hyperinsulinemic-euglycemic clamp, body composition by dual-energy X-ray absorptiometry and MRI, strength by isokinetic dynamometry, and VO2peak by graded exercise test.

resultsWLEX improved (p < .05) peripheral insulin sensitivity (+75 ± 103%) versus HEC (+12 ± 67%); WL (+36 ± 47%) versus HEC did not reach statistical significance. WLEX increased VO2peak (+7 ± 12%) versus WL (-2 ± 24%) and prevented reductions in strength and lean mass induced by WL (p < .05). WLEX decreased abdominal adipose tissue (-16 ± 9%) versus HEC (-3 ± 8%) and intermuscular adipose tissue (-15 ± 13%) versus both HEC (+9 ± 15%) and WL (+2 ± 11%; p < .01).

conclusionsExercise with weight loss improved insulin sensitivity and VO2peak, decreased ectopic fat, and preserved lean mass and strength. Weight loss alone decreased lean mass and strength. Older adults intending to lose weight should perform regular exercise to promote cardiometabolic and functional benefits, which may not occur with calorie restriction-induced weight loss alone.

Indexed as

Cardiorespiratory FitnessInsulin ResistanceAgedBody CompositionExerciseHumansMuscle StrengthObesityWeight LossAgingExerciseInsulin sensitivityObesityWeight loss

Identifiers

PMID34406407
PMCPMC9071425
OpenAlexW3194048129

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.