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The Hyperkinetic Circulatory Response during Exercise in Metabolic Myopathies: A Peculiar Model of Integrated Biology.

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Title: The Hyperkinetic Circulatory Response during Exercise in Metabolic Myopathies: A Peculiar Model of Integrated Biology.
Authors: BESSON, MARIE1 (AUTHOR) marie.besson3@etu.uca.fr, PEREIRA, BRUNO2 (AUTHOR) bpereira@chu-clermontferrand.fr, RANNOU, FABRICE3 (AUTHOR)
Source: Medicine & Science in Sports & Exercise. Jan2026, Vol. 58 Issue 1, p10-22. 13p.
Subject Terms: Medical information storage & retrieval systems, Skeletal muscle, Grey literature, Glycolysis, Muscle diseases, Meta-analysis, Cardiac output, Systematic reviews, MEDLINE, Cardiovascular system physiology, Exercise tests, Oxygen consumption, Online information services, Data analysis software
Abstract: Introduction: A hyperkinetic circulatory response has been described in some metabolic myopathies, a heterogeneous group of inborn errors of intermediary metabolism that interfere with the generation of ATP in skeletal muscle. However, an accurate picture of the cardiovascular response to exercise in the various metabolic myopathies remains elusive. Materials and Methods: We therefore sought to systematically review the literature by searching the PubMed/MEDLINE and Embase databases. A meta-analysis was performed from observational studies that evaluated the cardiac output (Q), oxygen arteriovenous difference (avDO2), relationship between Q increase and V̇O2 increase (Δ Q /ΔV̇O2), and peak oxygen uptake (V̇O2peak) during a cardiopulmonary exercise testing in patients with metabolic myopathies. A random-effects meta-analysis model was then applied. Results: From an initial 13,276 literature records, we identified 31 studies fulfilling the inclusion criteria. Compared with healthy age- and sex-matched controls, peak exercise Q is lower in respiratory chain deficiencies (RCD) (standardized mean difference (SMD), −0.63; 95% confidence interval (CI), −1.18 to −0.08) and glycolysis defects (GLY; myophosphorylase defect–McArdle disease, and phosphofructokinase defect–Tarui disease; SMD, −0.76; 95% CI, −1.17 to −0.36), peak exercise avDO2 is lower in RCD (SMD, −2.28; 95% CI, −3.19 to −1.36) and GLY (SMD, −4.41; 95% CI, −5.81 to −3.02), and Δ Q /ΔV̇O2 is higher in RCD (SMD, 1.70; 95% CI, 0.91 to 2.48) and GLY (SMD, 3.05; 95% CI, 1.94 to 4.16). Data are limited in lipid oxidation defects, with only two studies showing no difference in the aforementioned variables compared with healthy control subjects. Discussion/Conclusions: Although exercise responses were similar between GLY and RCD groups, greater heterogeneity in RCD suggests variable pathophysiology and underscores the need for standardized studies across metabolic myopathies. [ABSTRACT FROM AUTHOR]
Copyright of Medicine & Science in Sports & Exercise is the property of Lippincott Williams & Wilkins and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: The Hyperkinetic Circulatory Response during Exercise in Metabolic Myopathies: A Peculiar Model of Integrated Biology.
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  Data: <searchLink fieldCode="AR" term="%22BESSON%2C+MARIE%22">BESSON, MARIE</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> marie.besson3@etu.uca.fr</i><br /><searchLink fieldCode="AR" term="%22PEREIRA%2C+BRUNO%22">PEREIRA, BRUNO</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> bpereira@chu-clermontferrand.fr</i><br /><searchLink fieldCode="AR" term="%22RANNOU%2C+FABRICE%22">RANNOU, FABRICE</searchLink><relatesTo>3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Medicine+%26+Science+in+Sports+%26+Exercise%22">Medicine & Science in Sports & Exercise</searchLink>. Jan2026, Vol. 58 Issue 1, p10-22. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Medical+information+storage+%26+retrieval+systems%22">Medical information storage & retrieval systems</searchLink><br /><searchLink fieldCode="DE" term="%22Skeletal+muscle%22">Skeletal muscle</searchLink><br /><searchLink fieldCode="DE" term="%22Grey+literature%22">Grey literature</searchLink><br /><searchLink fieldCode="DE" term="%22Glycolysis%22">Glycolysis</searchLink><br /><searchLink fieldCode="DE" term="%22Muscle+diseases%22">Muscle diseases</searchLink><br /><searchLink fieldCode="DE" term="%22Meta-analysis%22">Meta-analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Cardiac+output%22">Cardiac output</searchLink><br /><searchLink fieldCode="DE" term="%22Systematic+reviews%22">Systematic reviews</searchLink><br /><searchLink fieldCode="DE" term="%22MEDLINE%22">MEDLINE</searchLink><br /><searchLink fieldCode="DE" term="%22Cardiovascular+system+physiology%22">Cardiovascular system physiology</searchLink><br /><searchLink fieldCode="DE" term="%22Exercise+tests%22">Exercise tests</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygen+consumption%22">Oxygen consumption</searchLink><br /><searchLink fieldCode="DE" term="%22Online+information+services%22">Online information services</searchLink><br /><searchLink fieldCode="DE" term="%22Data+analysis+software%22">Data analysis software</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Introduction: A hyperkinetic circulatory response has been described in some metabolic myopathies, a heterogeneous group of inborn errors of intermediary metabolism that interfere with the generation of ATP in skeletal muscle. However, an accurate picture of the cardiovascular response to exercise in the various metabolic myopathies remains elusive. Materials and Methods: We therefore sought to systematically review the literature by searching the PubMed/MEDLINE and Embase databases. A meta-analysis was performed from observational studies that evaluated the cardiac output (Q), oxygen arteriovenous difference (avDO2), relationship between Q increase and V̇O2 increase (Δ Q /ΔV̇O2), and peak oxygen uptake (V̇O2peak) during a cardiopulmonary exercise testing in patients with metabolic myopathies. A random-effects meta-analysis model was then applied. Results: From an initial 13,276 literature records, we identified 31 studies fulfilling the inclusion criteria. Compared with healthy age- and sex-matched controls, peak exercise Q is lower in respiratory chain deficiencies (RCD) (standardized mean difference (SMD), −0.63; 95% confidence interval (CI), −1.18 to −0.08) and glycolysis defects (GLY; myophosphorylase defect–McArdle disease, and phosphofructokinase defect–Tarui disease; SMD, −0.76; 95% CI, −1.17 to −0.36), peak exercise avDO2 is lower in RCD (SMD, −2.28; 95% CI, −3.19 to −1.36) and GLY (SMD, −4.41; 95% CI, −5.81 to −3.02), and Δ Q /ΔV̇O2 is higher in RCD (SMD, 1.70; 95% CI, 0.91 to 2.48) and GLY (SMD, 3.05; 95% CI, 1.94 to 4.16). Data are limited in lipid oxidation defects, with only two studies showing no difference in the aforementioned variables compared with healthy control subjects. Discussion/Conclusions: Although exercise responses were similar between GLY and RCD groups, greater heterogeneity in RCD suggests variable pathophysiology and underscores the need for standardized studies across metabolic myopathies. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Medicine & Science in Sports & Exercise is the property of Lippincott Williams & Wilkins and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1249/MSS.0000000000003838
    Languages:
      – Code: eng
        Text: English
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        PageCount: 13
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    Subjects:
      – SubjectFull: Medical information storage & retrieval systems
        Type: general
      – SubjectFull: Skeletal muscle
        Type: general
      – SubjectFull: Grey literature
        Type: general
      – SubjectFull: Glycolysis
        Type: general
      – SubjectFull: Muscle diseases
        Type: general
      – SubjectFull: Meta-analysis
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      – SubjectFull: Cardiac output
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      – SubjectFull: Systematic reviews
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      – SubjectFull: MEDLINE
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      – SubjectFull: Cardiovascular system physiology
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      – SubjectFull: Exercise tests
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      – SubjectFull: Oxygen consumption
        Type: general
      – SubjectFull: Online information services
        Type: general
      – SubjectFull: Data analysis software
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    Titles:
      – TitleFull: The Hyperkinetic Circulatory Response during Exercise in Metabolic Myopathies: A Peculiar Model of Integrated Biology.
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            NameFull: BESSON, MARIE
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            NameFull: PEREIRA, BRUNO
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              M: 01
              Text: Jan2026
              Type: published
              Y: 2026
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            – TitleFull: Medicine & Science in Sports & Exercise
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