Evidence map›Paper›PMID 30535050›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2019

Association of Breathing Reserve at Peak Exercise With Body Composition and Physical Function in Older Adults With Obesity.

Maria Theresa D Opina, Tina E Brinkley, Michelle Gordon, Mary F Lyles, Barbara J Nicklas

Open access · bronzeAbstract read
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact, top 75% 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

6 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Article
  3. Identifying limitations to exercise with incremental cardiopulmonary exercise testing: a scoping review.European respiratory review : an official journal of the European Respiratory Society · 2024
    Article
  4. Article
  5. Observational
  6. Article
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 2 institutions in 1 country.

Maria Theresa D OpinaSection on Pulmonary, Critical Care, Allergy, and Immunologic Disease, Department of Internal Medicine, Winston-Salem, North Carolina.
Tina E BrinkleySticht Center for Healthy Aging and Alzheimer's Prevention, Winston-Salem, North Carolina.
Michelle GordonSticht Center for Healthy Aging and Alzheimer's Prevention, Winston-Salem, North Carolina.
Mary F LylesSticht Center for Healthy Aging and Alzheimer's Prevention, Winston-Salem, North Carolina.
Barbara J NicklasSticht Center for Healthy Aging and Alzheimer's Prevention, Winston-Salem, North Carolina.
Healthy Start · USWake Forest University · US

Funding

Effect of fat loss on functional and cardiovascular benefits of aerobic exerciseR01HL093713 · NHLBI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI NICKLAS, BARBARA J · 2009 to 2013
$3.4M
NHLBI NIH HHS R01 HL093713
6 · The paper itself

Abstract

backgroundAdiposity-related ventilatory constraints in older adults can potentially contribute to greater risk of exercise intolerance and mobility disability. This study investigated whether ventilatory limitation, measured by breathing reserve (BR) at peak exercise, is associated with body composition and physical function in older adults with obesity.

methodsThis study was a cross-sectional analysis of data from a community-based cohort (N = 177) of older men and women (65-79 years) with obesity (body mass index = 30-45 kg/m2). All participants underwent cardiopulmonary exercise testing on a treadmill, dual-energy X-ray absorptiometry for body composition, and physical function assessments. We examined relationships between BR and body composition and physical function using multiple linear regression and compared a subset with (BR ≤ 30%; BR-low; n = 56) and without (BR ≥ 45%; BR-high, n = 48) ventilatory limitation using unpaired Student's t test and analysis of covariance.

resultsBR was inversely related to total body mass, lean mass, fat mass, % body fat, and waist circumference (p < 0.05 for all). BR was positively related to 400 m walk time (p = .006) and inversely related to usual gait speed (p = .05) and VO2peak (p < .0001), indicative of worse physical function. BR-low had greater adiposity, but also greater lean mass, higher VO2peak, and faster 400 m walk time, compared to BR-high (p < .05, for all).

conclusionsOlder adults with obesity who also have ventilatory limitation have overall higher measures of adiposity, but do not have lower peak exercise capacity or physical function. Thus, ventilatory limitation does not appear to be a contributing factor to obesity-related decrements in exercise tolerance or mobility.

Indexed as

Body CompositionAbsorptiometry, PhotonAgedCross-Sectional StudiesExercise TestExercise ToleranceFemaleHumansMaleObesityRespiratory Function TestsAgingFunctional performanceLean massMaximal oxygen consumptionRespiratory mechanics

Identifiers

PMID30535050
PMCPMC6853661
OpenAlexW2904799809

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.