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Unchanged muscle deoxygenation heterogeneity during bicycle exercise after 6 weeks of endurance training.

Publication ,  Conference
Kime, R; Niwayama, M; Fujioka, M; Shiroishi, K; Osawa, T; Shimomura, K; Osada, T; Murase, N; Katsumura, T
Published in: Adv Exp Med Biol
2010

The purpose of this study was to examine the changes in muscle oxygen saturation (SmO(2)) level and its heterogeneity after 6 weeks of endurance training using multi-channel near infrared spatially resolved spectroscopy (NIR(SRS)). Nine healthy subjects participated in this study (Male = 6, Female = 3, age: 27 +/- 5 years, height: 168.7 +/- 7.4 cm, weight: 62.4 +/- 12.4 kg). The subjects performed a 30 W ramp incremental bicycle exercise test until exhaustion before and after endurance training. The NIR(SRS) probe was attached to the left vastus lateralis muscle along the direction of the long axis. The subjects performed bicycle exercise for 30 min/day, 3 days/week for 6 weeks. The work rate during training was set at 60%V(O)(2peak) and increased every 5%V(O)(2peak) when the subjects could maintain the work rate three times consecutively. After training, V(O)(2peak) was significantly increased (Pre: 42.7 +/- 9.9 ml/kg/min, Post: 52.3 +/- 7.2 ml/kg/min, p < 0.001) and the mean SmO(2) within measurement sites at was significantly decreased (Pre: 56.1 +/- 1.1 %, Post: 53.3 +/- 2.2 %, p < 0.05). Conversely, the heterogeneity of the SmO(2) during exercise was not changed by training. These results suggest that the functional heterogeneity of O(2) balance did not change due to endurance training, and the O(2) balance heterogeneity may not interfere with O(2) exchange in the activating muscle in healthy individuals.

Duke Scholars

Published In

Adv Exp Med Biol

DOI

ISSN

0065-2598

Publication Date

2010

Volume

662

Start / End Page

353 / 358

Location

United States

Related Subject Headings

  • Time Factors
  • Spectroscopy, Near-Infrared
  • Physical Endurance
  • Oxygen Consumption
  • Oxygen
  • Muscles
  • Male
  • Humans
  • General & Internal Medicine
  • Female
 

Citation

APA
Chicago
ICMJE
MLA
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Kime, R., Niwayama, M., Fujioka, M., Shiroishi, K., Osawa, T., Shimomura, K., … Katsumura, T. (2010). Unchanged muscle deoxygenation heterogeneity during bicycle exercise after 6 weeks of endurance training. In Adv Exp Med Biol (Vol. 662, pp. 353–358). United States. https://doi.org/10.1007/978-1-4419-1241-1_51
Kime, Ryotaro, Masatsugu Niwayama, Masako Fujioka, Kiyoshi Shiroishi, Takuya Osawa, Kousuke Shimomura, Takuya Osada, Norio Murase, and Toshihito Katsumura. “Unchanged muscle deoxygenation heterogeneity during bicycle exercise after 6 weeks of endurance training.” In Adv Exp Med Biol, 662:353–58, 2010. https://doi.org/10.1007/978-1-4419-1241-1_51.
Kime R, Niwayama M, Fujioka M, Shiroishi K, Osawa T, Shimomura K, et al. Unchanged muscle deoxygenation heterogeneity during bicycle exercise after 6 weeks of endurance training. In: Adv Exp Med Biol. 2010. p. 353–8.
Kime, Ryotaro, et al. “Unchanged muscle deoxygenation heterogeneity during bicycle exercise after 6 weeks of endurance training.Adv Exp Med Biol, vol. 662, 2010, pp. 353–58. Pubmed, doi:10.1007/978-1-4419-1241-1_51.
Kime R, Niwayama M, Fujioka M, Shiroishi K, Osawa T, Shimomura K, Osada T, Murase N, Katsumura T. Unchanged muscle deoxygenation heterogeneity during bicycle exercise after 6 weeks of endurance training. Adv Exp Med Biol. 2010. p. 353–358.

Published In

Adv Exp Med Biol

DOI

ISSN

0065-2598

Publication Date

2010

Volume

662

Start / End Page

353 / 358

Location

United States

Related Subject Headings

  • Time Factors
  • Spectroscopy, Near-Infrared
  • Physical Endurance
  • Oxygen Consumption
  • Oxygen
  • Muscles
  • Male
  • Humans
  • General & Internal Medicine
  • Female