Prediction of Anaerobic Threshold after Cardiovascular Surgery in Hemodialysis Patients

DOI Open Access
  • YABE Hiroki
    Depertment of Physical Therapy School of Rehabilitation Science, Seirei Christopher University Department of Rehabilitation, Nagoya Kyoritsu Hospital
  • KOHNO Kenichi
    International University of Health and Welfare School of Health Sciences at Narita Department of Physical Therapy
  • MORIYAMA Yoshifumi
    Depertment of Wellness Center, Nagoya Kyoritsu Hospital

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Other Title
  • 維持血液透析患者における心臓血管外科術後の嫌気性代謝閾値強度での運動処方の検討

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<p>Purpose: The purpose of this study was to evaluate the reliability and safety of target heart rate (HR) using Karvonen’s formula and to predict HR max and resting HR + coefficient (HRrest + ) formula in patients undergoing hemodialysis after cardiovascular surgery. These formulae were applied to determine target HR that did not exceed the anaerobic target HReshold (AT) after cardiovascular surgery.</p><p>Methods: The study included 16 hemodialysis patients after cardiovascular surgery and 16 age matched controls. Patients who were taking β-blockers were excluded. Before hospital discharge, each patient performed a cardiopulmonary exercise test on an electric bicycle ergometer. HR at AT (HRAT) was calculated using the v-slope method. Interclass correlation coefficients (ICC) between HRAT and target HR, calculated using Karvonen’s and HRrest + formulae, varied with Karvonen’s coefficient (k) and, respectively. The coefficient of each formula was changed, and the rate of subjects who reached HRAT in 16 participants was counted. The safety of target HR (% over AT) was then defined.</p><p>Results: HRAT of the hemodialysis group (89.9 ± 12.3 bpm) was significantly less compared to that of the control group (108.2 ± 11 bpm, p < 0.05). Considering that k was 0.13, ICC and % over AT were 0.9 and 36.8%, respectively. Considering that for HRrest + was 11, ICC and % over AT were 0.92 and 15.8%, respectively.</p><p>Conclusion: In hemodialysis patients after cardiovascular surgery, target HR calculated using “HRrest + 11” is reliable and safe at exercise loads not exceeding AT.</p>

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Details 詳細情報について

  • CRID
    1390282679737726848
  • NII Article ID
    130005431683
  • DOI
    10.15063/rigaku.11125
  • ISSN
    2189602X
    02893770
  • Text Lang
    ja
  • Article Type
    journal article
  • Data Source
    • JaLC
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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