Evidence map›Paper›PMID 20876201›Full record

ArticleThe Journal of physiology2010

Attenuated exercise induced hyperaemia with age: mechanistic insight from passive limb movement.

John McDaniel, Melissa A Hayman, Steve Ives, Anette S Fjeldstad, Joel D Trinity, D Walter Wray, Russell S Richardson

Abstract readComparative Study
In one paragraph

Article in The Journal of physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
–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

50 citing papers in PubMed.

  1. Trial
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  12. The role of the endothelium in the hyperemic response to passive leg movement: looking beyond nitric oxide.American journal of physiology. Heart and circulatory physiology · 2021
    Article
  13. 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

7 authors.

John McDanielGeorge E. Whalen VA Medical Center, Salt Lake City, Utah 84148, USA. John.McDaniel@utah.edu
Melissa A Hayman
Steve Ives
Anette S Fjeldstad
Joel D Trinity
D Walter Wray
Russell S Richardson

Funding

NHLBI NIH HHS P01 HL 109183
6 · The paper itself

Abstract

The influence of age on the central and peripheral contributors to exercise-induced hyperaemia is unclear. Utilizing a reductionist approach, we compared the peripheral and central haemodynamic responses to passive limb movement (exercise without an increase in metabolism) in 11 old (71 ± 9 years of age S.D.) and 11 young (24 ± 2 years of age) healthy subjects. Cardiac output (CO), heart rate (HR), stroke volume (SV), mean arterial pressure (MAP), and femoral blood flow of the passively moved and control legs were evaluated second-by-second during 2 min of passive knee extension at a rate of 1 Hz. Compared to the young, the old group exhibited a significantly attenuated increase in HR (7 ± 4% vs. 13 ± 7% S.D.), CO (10 ± 6% vs. 18 ± 8%) and femoral blood flow in the passively moved (123 ± 55% vs. 194 ± 57%) and control legs (47 ± 43% vs. 77 ± 96%). In addition, the change in vascular conductance in the passively moving limb was also significantly attenuated in the old (2.4 ± 1.2 ml min(-1) mmHg(-1)) compared to the young (4.3 ± 1.7 ml min(-1) mmHg(-1)). In both groups all main central and peripheral changes that occurred at the onset of passive knee extension were transient, lasting only 45 s. In a paradigm where metabolism does not play a role, these data reveal that both central and peripheral haemodynamic mechanisms are likely to be responsible for the 30% reduction in exercise-induced hyperaemia with age.

Indexed as

Motion Therapy, Continuous PassiveAdultAgedAged, 80 and overAgingBlood Flow VelocityExerciseExtremitiesHumansHyperemiaLegMaleMovementYoung Adult

Identifiers

PMID20876201
PMCPMC3008854

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.