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January 21, 2025CHEST PulmonaryOpen Access

Limited Ventilatory Reserve During Exercise in Heart Failure with Preserved Ejection Fraction

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Key result

HFpEF links to limited exercise ventilatory reserve, driven by smaller lung capacity and upper body adiposity.

  • n=35

Why the study?

Patients with HFpEF exhibit a tachypneic breathing strategy during exercise, but whether they have limited ventilatory reserve compared with controls and whether greater upper body adiposity contributes remain unknown.

Do patients with HFpEF have limited ventilatory reserve compared with control patients during exercise, and does greater upper body adiposity contribute to this limitation?

Population

16 patients with HFpEF and 19 control patients

Comparison

Patients with HFpEF vs control patients

Authors

GCGizem CifciDBD. J. BrownBBBarry A. Borlaug

Discussion

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Overview

May refine HFpEF exercise testing interpretation; hypothesis-generating for adiposity-targeted interventions.

Study Design

Type

Observational (n=35)

Structured PICO

Do patients with HFpEF have limited ventilatory reserve compared with control patients during exercise, and does greater upper body adiposity contribute to this limitation?

P
Population
35 older adults (16 with HFpEF and 19 controls) who underwent incremental cycling to volitional exhaustion to assess ventilatory reserve.
E
Exposure
Incremental cycling to volitional exhaustion
C
Comparator
Control patients without HFpEF
O
Outcome
Inspiratory capacity, inspiratory and expiratory reserve volumes, and ventilatory variables at rest and during exercise at 40 W and peak oxygen uptakesurrogate

Patients with HFpEF have limited ventilatory reserve during exercise, which is partly driven by smaller lung capacity associated with greater upper body adiposity.

Cite This Study

Cifci et al. (2025) conducted an observational in Heart failure with preserved ejection fraction (n=35). Heart failure with preserved ejection fraction vs. Control patients was evaluated on Ventilatory reserve during exercise. Patients with HFpEF had limited ventilatory reserve during exercise compared to controls, partly due to smaller lung capacity and greater upper body adiposity.

synapsesocial.com/papers/6a21bd323579fbee58c0aeebhttps://doi.org/10.1016/j.chpulm.2025.100138
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Higher Respiratory Muscle Oxygen Cost of Breathing During Exercise in Heart Failure With Preserved Ejection Fraction2026 · 1 citations
  2. 2Impaired Chronotropic and Vasodilator Reserves Limit Exercise Capacity in Patients With Heart Failure and a Preserved Ejection Fraction2006 · 701 citations
  3. 3Mechanisms of exercise limitation in heart failure with preserved ejection fraction and obesity: A case of engine-chassis mismatch2025 · 5 citations
  4. 4Lung Function and Exercise Gas Exchange in Chronic Heart Failure1997 · 401 citations
  5. 5Determinants of Exercise Intolerance in Elderly Heart Failure Patients With Preserved Ejection Fraction2011 · 453 citations