Chapter title |
Low Volume Aerobic Training Heightens Muscle Deoxygenation in Early Post-Angina Pectoris Patients.
|
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Chapter number | 34 |
Book title |
Oxygen Transport to Tissue XXXVIII
|
Published in |
Advances in experimental medicine and biology, January 2016
|
DOI | 10.1007/978-3-319-38810-6_34 |
Pubmed ID | |
Book ISBNs |
978-3-31-938808-3, 978-3-31-938810-6
|
Authors |
Shun Takagi, Norio Murase, Ryotaro Kime, Masatsugu Niwayama, Takuya Osada, Toshihito Katsumura |
Editors |
Qingming Luo, Lin Z. Li, David K. Harrison, Hua Shi, Duane F. Bruley |
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 (∆Deoxy-Hb) and total hemoglobin concentration (∆Total-Hb) were monitored at the vastus lateralis by near infrared spatial resolved spectroscopy during exercise. The SmO2 was significantly lower and ∆Deoxy-Hb was significantly higher after training than before training, while there were no significant changes in ∆Total-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. |
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