Evidence map›Paper›PMID 25236519›Full record

ArticleJournal of the American College of Cardiology2014

Impact of lifelong exercise "dose" on left ventricular compliance and distensibility.

Paul S Bhella, Jeffrey L Hastings, Naoki Fujimoto, Shigeki Shibata, Graeme Carrick-Ranson, M Dean Palmer, Kara N Boyd, Beverley Adams-Huet, Benjamin D Levine

Registry-linked trialAbstract read
In one paragraph

Article in Journal of the American College of Cardiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04281264 (Strength Training in Hypoxia to Improve Bone and Cardiovascular Health of Elderly), which is not on this map. Cited by 88 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 4 pooled it
14.6field-weighted citation impact, top 1% 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.

NCT04281264 nacompletednot on this mapstarted 2019, after this paper: background citation

Strength Training in Hypoxia to Improve Bone and Cardiovascular Health of Elderly

TypeinterventionalSponsorUniversity of ExtremaduraRan2019 to 2021Enrolled120ConditionsAging WellArmsPassive Hypoxia, Normoxia Circuit Training with Elastic Bands, Hypoxia Circuit Training with Elastic Bands, Normoxia Vibration, Hypoxia Vibration
3 · Its place in the literature

Who cites it

88 citing papers in PubMed, 4 syntheses or guidelines pooled it, 243 citations in OpenAlex.

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28 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 1 country.

Paul S BhellaInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital, Dallas, Texas; John Peter Smith Health Network, Fort Worth, Texas.
Jeffrey L HastingsInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital, Dallas, Texas.
Naoki FujimotoInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital, Dallas, Texas.
Shigeki ShibataInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital, Dallas, Texas.
Graeme Carrick-RansonInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital, Dallas, Texas.
M Dean PalmerInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital, Dallas, Texas.
Kara N BoydInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital, Dallas, Texas.
Beverley Adams-HuetUniversity of Texas-Southwestern Medical Center at Dallas, Dallas, Texas.
Benjamin D LevineInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital, Dallas, Texas; University of Texas-Southwestern Medical Center at Dallas, Dallas, Texas. Electronic address: BenjaminLevine@TexasHealth.org.
Presbyterian Hospital · USJohn Peter Smith Hospital · USTexas Health Dallas · USThe University of Texas Southwestern Medical Center · US

Funding

Aging Fitness & Failure: Mechanisms of Diastolic DysfunctionR01AG017479 · NIA · UT SOUTHWESTERN MEDICAL CENTER · PI LEVINE, BENJAMIN D · 2001 to 2016
$7.8M
NIA NIH HHS R01 AG017479NIA NIH HHS R01 AG17479
6 · The paper itself

Abstract

backgroundSedentary aging has deleterious effects on the cardiovascular system, including decreased left ventricular compliance and distensibility (LVCD). Conversely, Masters level athletes, who train intensively throughout adulthood, retain youthful LVCD.

objectivesThe purpose of this study was to test the hypothesis that preservation of LVCD may be possible with moderate lifelong exercise training.

methodsHealthy seniors (n = 102) were recruited from predefined populations, screened for lifelong patterns of exercise training, and stratified into 4 groups: "sedentary" (<2 sessions/week); "casual" (2 to 3 sessions/week); "committed" (4 to 5 sessions/week); and "competitive" Masters level athletes (6 to 7 sessions/week). Right heart catheterization and echocardiography were performed while preload was manipulated using lower body negative pressure and rapid saline infusion to define LV pressure-volume relationships and Frank-Starling curves.

resultsPeak oxygen uptake and LV mass increased with escalating doses of lifelong exercise, with little change in systolic function. At baseline, LV distensibility was greater in committed (21%) and competitive (36%) exercisers than in sedentary subjects. Group LV stiffness constants (sedentary: 0.062 ± 0.039; casual: 0.079 ± 0.052; committed: 0.055 ± 0.033; and competitive: 0.035 ± 0.033) revealed: 1) increased stiffness in sedentary subjects compared to competitive athletes, whereas lifelong casual exercise had no effect; and 2) greater compliance in committed exercisers than in sedentary or casual exercisers.

conclusionsLow doses of casual, lifelong exercise do not prevent the decreased compliance and distensibility observed with healthy, sedentary aging. In contrast, 4 to 5 exercise sessions/week throughout adulthood prevent most of these age-related changes. As LV stiffening has been implicated in the pathophysiology of many cardiovascular conditions affecting the elderly, this "dose" of exercise training may have important implications for prevention of cardiovascular disease.

Indexed as

AthletesRisk Reduction BehaviorSedentary BehaviorAgedAgingCardiac CatheterizationCohort StudiesComplianceCross-Sectional StudiesExerciseFemaleHumansLongitudinal StudiesMaleMiddle AgedOxygen Consumptionagingdiastolic functiondistensibilityexercise traininghemodynamicsventricular compliance

Identifiers

PMID25236519
PMCPMC4272199
OpenAlexW2026722078

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.