Evidence map›Paper›PMID 19822621›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2010

Relationships of cardiac, pulmonary, and muscle reserves and frailty to exercise capacity in older women.

Carlos O Weiss, Helen H Hoenig, Ravi Varadhan, Eleanor M Simonsick, Linda P Fried

Abstract readComparative Study
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

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

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Frailty Identification Using Heart Rate Dynamics: A Deep Learning Approach.IEEE journal of biomedical and health informatics · 2022
    Article
  7. Article
  8. Article
  9. Observational
  10. Review
  11. Article
  12. Observational
  13. Frailty assessment in the cardiovascular care of older adults.Journal of the American College of Cardiology · 2014
    Review
  14. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Carlos O WeissDivision of Geriatric Medicine & Gerontology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA. cweiss9@jhmi.edu
Helen H Hoenig
Ravi Varadhan
Eleanor M Simonsick
Linda P Fried

Funding

ZINC AND CA EDTA THERAPY OF PLUMBISMM01RR000052 · NCRR · JOHNS HOPKINS UNIVERSITY · PI FLEXNER, CHARLES W. · 1985 to 2007
$37.3M
Technological Assessment and Solutions Core - RC4P30AG021334 · NIA · JOHNS HOPKINS UNIVERSITY · PI Jeremy D Walston · 2003 to 2026
$33.2M
EPIDEMIOLOGY AND BIOSTATISTICS OF AGINGT32AG000247 · NIA · JOHNS HOPKINS UNIVERSITY · PI Karen J. Bandeen-Roche · 1996 to 2026
$13.2M
Pathogenesis of physical disability in Aging womenR37AG019905 · NIA · JOHNS HOPKINS UNIVERSITY · PI FRIED, LINDA P · 2001 to 2010
$9.0M
RISK FACTORS FOR PHYSICAL DISABILITY IN AGING WOMENR01AG011703 · NIA · JOHNS HOPKINS UNIVERSITY · PI FRIED, LINDA P · 1994 to 2004
$3.5M
WOMEN'S HEALTH AND AGING-12112N01AG012112 · NIA · JOHNS HOPKINS UNIVERSITY · 1991 to 2003
$500k
NCRR NIH HHS M01 RR000052NCRR NIH HHS M01-RR00052NIA NIH HHS 5R37AG019905-08NIA NIH HHS N01 AG012112NIA NIH HHS N01AG12112NIA NIH HHS P30 AG021334NIA NIH HHS P30AG021334-04NIA NIH HHS R01 AG011703NIA NIH HHS R37 AG019905NIA NIH HHS T32 AG000247
6 · The paper itself

Abstract

backgroundA decline in exercise capacity (EC) is a characteristic of frailty. We hypothesized that decline is the effect of decrements in several physiological systems. We assessed whether the relationship of three main physiological systems-cardiac, pulmonary, and musculoskeletal-to EC is independent or interactive and whether their effect on EC varies with respect to frailty status.

methodsObservational study of 547 disabled women aged 65 years and older (Women's Health and Aging Study I) including 131 frail who participated in a test of EC. EC (seated step test), cardiac function (chronotropic index), pulmonary function (forced vital capacity, FVC), musculoskeletal function (quadriceps strength, QS), and frailty status were measured and interactive effects were modeled using linear regression and differentiation.

resultsEach physiological system had a direct relationship with EC, which was lower in frail compared with nonfrail. The relationship between FVC and EC was positive and increased with increasing QS in nonfrail subjects. The effect of QS on EC was positive and increased with increasing FVC regardless of frailty. In subjects with low QS, frailty status was associated with lower EC and this effect became stronger with increasing FVC. Discussion Findings suggest but do not show that frailty status modifies the effects of physiological function in several systems on EC. Approaches to understanding emergent properties such as vulnerability to illness and death and clinical efforts to prevent and treat frailty should evaluate and possibly intervene on several physiological systems to be maximally effective.

Indexed as

Frail ElderlyAgedAged, 80 and overExercise ToleranceFemaleHeartHeart RateHumansLongevityLungMuscle, SkeletalMuscle StrengthVital CapacityWomen's Health

Identifiers

PMID19822621
PMCPMC2822279

What OpenQuestion holds

Textmetadata
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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.