Abstract
The aim of this study was to test the effects of aerobic cycling training on O2 dynamics in several leg muscles in early post-myocardial infarction (post-MI). Fifteen post-MI patients were divided into a 12-week training group (TR, n = 9) or a control/non-training group (CON, n = 6). All participants performed ramp bicycle exercise until exhaustion at two times: within 12–35 days of their MI and then again 12 weeks later. Muscle O2 saturation (SmO2) and total hemoglobin concentration (∆total-Hb) were monitored continuously at thigh and lower leg muscles by near infrared spectroscopy. In CON, there were no significant alterations in muscle O2 dynamics between before and after 12 weeks at any measurement sites. In TR, after 12 weeks, lower SmO2 was observed at all measurement sites. In total-Hb, no significant changes were found after training at any measurement sites in TR. Moreover, the muscle deoxygenation after 12 weeks was related to an improvement of peak O2 uptake in all muscles. Our findings suggest that aerobic cycling training may be useful for early post-MI patients to improve peak aerobic capacity via enhancement of muscle deoxygenation and O2 extraction at several leg muscles.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Takagi S, Murase N, Kime R et al (2016) Aerobic training enhances muscle deoxygenation in early post-myocardial infarction. Eur J Appl Physiol 116:673–685
Musch TI, Nguyen CT, Pham HV et al (1992) Training effects on the regional blood flow response to exercise in myocardial infarcted rats. Am J Phys 262(6 Pt 2):H1846–H1852
Beaver WL, Wasserman K, Whipp BJ (1986) A new method for detecting anaerobic threshold by gas exchange. J Appl Physiol 60(6):2020–2027
Takagi S, Kime R, Murase N et al (2013) Aging affects spatial distribution of leg muscle oxy-gen saturation during ramp cycling exercise. Adv Exp Med Biol 789:157–162
Niwayama M, Suzuki H, Yamashita T et al (2012) Error factors in oxygenation measurement using continuous wave and spatially resolved near-infrared spectroscopy. J Jpn Coll Angiol 52:211–215
Ericson MO, Nisell R, Arborelius UP et al (1985) Muscular activity during ergometer cycling. Scand J Rehabil Med 17(2):53–61
Acknowledgments
The authors are grateful for revision of this manuscript by Andrea Hope. This work was supported in part by JSPS KAKENHI Grant Number 16K16487 to S.T.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer International Publishing AG, part of Springer Nature
About this chapter
Cite this chapter
Takagi, S., Kime, R., Murase, N., Niwayama, M., Osada, T., Katsumura, T. (2018). Effects of Aerobic Cycling Training on O2 Dynamics in Several Leg Muscles in Early Post-myocardial Infarction. In: Thews, O., LaManna, J., Harrison, D. (eds) Oxygen Transport to Tissue XL. Advances in Experimental Medicine and Biology, vol 1072. Springer, Cham. https://doi.org/10.1007/978-3-319-91287-5_15
Download citation
DOI: https://doi.org/10.1007/978-3-319-91287-5_15
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-91285-1
Online ISBN: 978-3-319-91287-5
eBook Packages: Biomedical and Life SciencesBiomedical and Life Sciences (R0)