Weekly Interval Training Attenuates the Central Respiratory Drive during Heavy Exercise
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- 宮本 忠吉
- 大阪産業大学大学院 人間環境学研究科
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- ITO GO
- 大阪産業大学大学院 人間環境学研究科
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- NAKAHARA HIDEHIRO
- Graduate School of Health Sciences, Morinomiya University of Medical Sciences, Osaka 574-8530, Japan
抄録
<p>Background: High intensity interval training (HIT) is more effective than continuous training in enhancing cardio-respiratory function and symptom severity in chronic heart failure (CHF). We examined how HIT affects ventilatory regulation. Methods: In 7 healthy subjects, at rest and during exercise at light and heavy intensities, we separately characterized respiratory controller and plant (subsystems) of chemoreflex by changing inspiratory CO2 fraction and by making subjects alter ventilation (VE), respectively. Results: HIT did not affect both subsystems at rest and during light intensity exercise. During heavy intensity exercise, rightward shift of central controller characteristics mainly attributed to lower VE (-9.4%, p<0.01) and higher end tidal PCO2 (+4.4%, p<0.05) after HIT. Conclusion: Weekly high intensity interval training attenuates the respiratory drive during heavy exercise through desensitization of the respiratory central controller. Such mechanism may contribute to favorable effects of HIT in CHF.</p>
収録刊行物
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- 生体医工学
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生体医工学 Annual58 (Proc), 568-569, 2020
公益社団法人 日本生体医工学会
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詳細情報 詳細情報について
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- CRID
- 1390003825204315648
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- NII論文ID
- 130007885103
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- ISSN
- 18814379
- 1347443X
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可