Evidence map›Paper›PMID 21900844›Full record

Trial reportMedicine and science in sports and exercise2012

Predicting maximal HR in heart failure patients on β-blockade therapy.

Steven J Keteyian, Dalane Kitzman, Faiez Zannad, Joel Landzberg, J Malcolm Arnold, Peter Brubaker, Clinton A Brawner, Daniel Bensimhon, Anne S Hellkamp, Greg Ewald

Abstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Medicine and science in sports and exercise, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Estimating VOInternational journal of general medicine · 2022
    Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. 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

10 authors.

Steven J KeteyianDepartment of Internal Medicine, Henry Ford Hospital, Detroit, MI, USA. sketeyi1@hfhs.org
Dalane Kitzman
Faiez Zannad
Joel Landzberg
J Malcolm Arnold
Peter Brubaker
Clinton A Brawner
Daniel Bensimhon
Anne S Hellkamp
Greg Ewald

Funding

ACTION - A CHF Trial Investigating Outcomes of ExerciseU01HL063747 · NHLBI · DUKE UNIVERSITY · PI O'CONNOR, CHRISTOPHER M · 2002 to 2008
$24.8M
Exercise Intolerance in Elderly Diastolic Heart FailureR37AG018915 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI KITZMAN, DALANE W · 2005 to 2013
$3.4M
ACTION - A CHF Trial Investigating Outcomes of ExerciseU01HL064250 · NHLBI · HENRY FORD HEALTH SYSTEM · PI KETEYIAN, STEVEN J · 2002 to 2007
$1.4M
CHF TRIAL INVESTIGATING OUTCOMES OF EXERCISE TRAININGU01HL066491 · NHLBI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI KITZMAN, DALANE W · 2002 to 2007
$1.4M
ACTION - A CHF Trial Investigating Outcomes of ExerciseU01HL064264 · NHLBI · WASHINGTON UNIVERSITY · PI EWALD, GREGORY A · 2002 to 2006
$1.0M
ACTION - A CHF Trial Investigating Outcomes of ExerciseU01HL068973 · NHLBI · BOSTON MEDICAL CENTER · PI COLUCCI, WILSON S. · 2002 to 2007
$1.0M
ACTION - A CHF Trial Investigating Outcomes of ExerciseU01HL066501 · NHLBI · CASE WESTERN RESERVE UNIVERSITY · PI PINA, ILEANA L · 2002 to 2007
$973k
ACTION - A CHF Trial Investigating Outcomes of ExerciseU01HL066497 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI BITTNER, VERA A · 2002 to 2005
$838k
ACTION - A CHF Trial Investigating Outcomes of ExerciseU01HL064257 · NHLBI · OREGON HEALTH AND SCIENCE UNIVERSITY · PI ALHARETHI, RAMI · 2002 to 2005
$773k
ACTION-A CHF TRIAL INVESTIGATING OUTCOMES OF EXERCISEU01HL066494 · NHLBI · OHIO STATE UNIVERSITY · PI ABRAHAM, WILLIAM TOBER · 2002 to 2005
$766k
ACTION - A CHF Trial Investigating Outcomes of ExerciseU01HL068980 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FONAROW, GREGG C · 2002 to 2006
$709k
ACTION - A CHF Trial Investigating Outcomes of ExerciseU01HL066482 · NHLBI · EMORY UNIVERSITY · PI SMITH, ANDREW · 2002 to 2005
$643k
NHLBI NIH HHS 5U01HL063747NHLBI NIH HHS 5U01HL064250NHLBI NIH HHS 5U01HL064257NHLBI NIH HHS 5U01HL064264NHLBI NIH HHS 5U01HL064265NHLBI NIH HHS 5U01HL066482NHLBI NIH HHS 5U01HL066491NHLBI NIH HHS 5U01HL066494NHLBI NIH HHS 5U01HL066497NHLBI NIH HHS 5U01HL066501NHLBI NIH HHS 5U01HL068973NHLBI NIH HHS 5U01HL068980NHLBI NIH HHS U01 HL063747NHLBI NIH HHS U01 HL064250NHLBI NIH HHS U01 HL064257NHLBI NIH HHS U01 HL064264NHLBI NIH HHS U01 HL064265NHLBI NIH HHS U01 HL066482NHLBI NIH HHS U01 HL066491NHLBI NIH HHS U01 HL066494NHLBI NIH HHS U01 HL066497NHLBI NIH HHS U01 HL066501NHLBI NIH HHS U01 HL068973NHLBI NIH HHS U01 HL068980NIA NIH HHS P60AG10484NIA NIH HHS R37 AG018915NIA NIH HHS R37AG18915
6 · The paper itself

Abstract

purposeStandards for estimating maximal HR are important when interpreting the adequacy of physiologic stress during exercise testing, assessing chronotropic response, and prescribing an exercise training regimen. The equation 220 - age is used to estimate maximum HR; however, it overestimates measured maximal HR in patients taking β-adrenergic blockade (βB) therapy. This study developed and validated a practical equation to predict maximal HR in patients with heart failure (HF) taking βB therapy.

methodsData from symptom-limited exercise tests completed on patients with systolic HF participating in the Heart Failure: A Controlled Trial Investigating Outcomes of Exercise Training trial and taking a βB agent were used to develop a simplified equation, which was validated using bootstrapping.

resultsThe simplified derived equation was 119 + 0.5 (resting HR) - 0.5 (age) - (0, if test was completed using a treadmill; 5, if using a stationary bike). The R2 and SEE were 0.28 and 18 beats·min(-1), respectively. Validation of this equation yielded a mean R and SEE of 0.28 and 18 beats·min(-1), respectively. For the equation 220 - age, the R2 was -2.93, and the SEE was 43 beats·min(-1).

conclusionsWe report a valid and simple population-specific equation for estimating peak HR in patients with HF taking βB therapy. This equation should be helpful when evaluating chronotropic response or assessing if a maximum effort was provided during exercise testing. We caution, however, that the magnitude of the variation (SEE = 18 beats·min(-1)) associated with this prediction equation may make it impractical when prescribing exercise intensity.

Indexed as

Exercise TestAdrenergic beta-AntagonistsAgedAge FactorsFemaleHeart FailureHeart RateHumansLinear ModelsMaleMiddle AgedPredictive Value of TestsAdrenergic beta-Antagonists

Identifiers

PMID21900844
PMCPMC3755356

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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.