Low volume aerobic training heightens muscle deoxygenation in early post-angina pectoris patients

Shun Takagi, Norio Murase, Ryotaro Kime, Masatsugu Niwayama, Takuya Osada, Toshihito Katsumura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The aim of this study was to investigate the effect of low volume aerobic exercise training on muscle O2 dynamics during exercise in early post-angina pectoris (AP) patients, as a pilot study. Seven AP patients (age: 72 ± 6 years) participated in aerobic exercise training for 12 weeks. Training consisted of continuous cycling exercise for 30 min at the individual’s estimated lactate threshold, and the subjects trained for 15 ± 5 exercise sessions over 12 weeks. Before and after training, the subjects performed ramp cycling exercise until exhaustion. Muscle O2 saturation (SmO2) and relative changes from rest in deoxygenated hemoglobin concentration (ΔDeoxy-Hb) and total hemoglobin concentration (ΔTotal-Hb) were monitored at the vastus lateralis by near infrared spatial resolved spectroscopy during exercise. The SmO 2 was significantly lower and ΔDeoxy-Hb was significantly higher after training than before training, while there were no significant changes in ΔTotal-Hb. These results indicated that muscle deoxygenation and muscle O2 extraction were potentially heightened by aerobic exercise training in AP patients, even though the exercise training volume was low.

Original languageEnglish
Title of host publicationOxygen Transport to Tissue XXXVIII
PublisherSpringer New York LLC
Pages255-261
Number of pages7
Volume923
ISBN (Print)9783319388083
DOIs
Publication statusPublished - 2016
Event43rd Annual Meeting of the International Society on Oxygen Transport to Tissue, ISOTT 2015 - Wuhan, China
Duration: 2015 Jul 112015 Jul 16

Publication series

NameAdvances in Experimental Medicine and Biology
Volume923
ISSN (Print)00652598
ISSN (Electronic)22148019

Other

Other43rd Annual Meeting of the International Society on Oxygen Transport to Tissue, ISOTT 2015
CountryChina
CityWuhan
Period15/7/1115/7/16

Keywords

  • Cycling training
  • Ischemic heart disease
  • Muscle O dynamics
  • Near infrared spectroscopy
  • Peak aerobic capacity

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)

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