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Muscle Oxygen Saturation Heterogeneity Among Leg Muscles During Ramp Exercise

  • Shun Takagi
  • Ryotaro Kime
  • Masatsugu Niwayama
  • Norio Murase
  • Toshihito Katsumura
Conference paper
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 765)

Abstract

We examined whether O2 saturation in several leg muscles changes as exercise intensity increases. Twelve healthy young males performed 20 W/min ramp bicycle exercise until exhaustion. Pulmonary O2 uptake (VO2) was monitored continuously during the experiments to determine peak oxygen uptake. Muscle O2 saturation (SmO2) was also monitored continuously at the belly of the vastus lateralis (VL), rectus femoris, vastus medialis, biceps femoris, gastrocnemius lateralis, gastrocnemius medialis, and tibialis anterior by near-infrared spatial resolved spectroscopy. Although the VL muscle mainly contributes during cycling exercise, deoxygenation was enhanced not only in the VL muscle but also in the other thigh muscles and lower leg muscles with increased exercise intensity. Furthermore, SmO2 response during ramp cycling exercise differed considerably between leg muscles.

Keywords

Muscle oxygen saturation Heterogeneity Oxygen uptake Cycling exercise Near-infrared spatial resolved spectroscopy 

Notes

Acknowledgments

The authors are grateful for revision of this manuscript by Andrea Hope. We also thank Mikiko Yonemitsu and Ayaka Kime for their helpful technical assistance. This study was supported in part by Grant-in-Aid for Young Scientists from the Japan Society for Promotion of Science 22700702 to R. Kime.

References

  1. 1.
    Kime R, Osada T, Shiroishi K et al (2006) Muscle oxygenation heterogeneity in a single muscle at rest and during bicycle exercise. Jpn J Phys Fitness Sports Med 55(suppl):S19–S22CrossRefGoogle Scholar
  2. 2.
    Kalliokoski KK, Oikonen V, Takala TO et al (2001) Enhanced oxygen extraction and reduced flow heterogeneity in exercising muscle in endurance-trained men. Am J Physiol Endocrinol Metab 280:E1015–E1021CrossRefPubMedPubMedCentralGoogle Scholar
  3. 3.
    Komi PV, Kaneko M, Aura O (1989) EMG activity of the leg extensor muscles with special reference to mechanical efficiency in concentric and eccentric exercise. Int J Sports Med 8(suppl 1):22–29Google Scholar
  4. 4.
    Praagman M (2001) A method for biomechanical modeling of energy consumption. J Clin Bimech 15(suppl 1):S53–S54Google Scholar
  5. 5.
    Komiyama T, Quaresima V, Shigematsu H et al (2001) Comparison of two spatially resolved near-infrared photometers in the detection of tissue oxygen saturation: poor reliability at very low oxygen saturation. Cli Sci (Lond) 101(6):715–718CrossRefGoogle Scholar
  6. 6.
    Niwayama M, Sone S, Murata H et al (2007) Errors in muscle oxygenation measurement using spatially-resolved NIRS and its correction (Abstract in English). J Jpn Coll Angiol 47(1):17–20Google Scholar
  7. 7.
    Murrant CL, Sarelius IH (2000) Coupling of muscle metabolism and muscle blood flow in capillary units during contraction. Acta Physiol Scand 168(4):531–541CrossRefPubMedGoogle Scholar
  8. 8.
    Poole DC, Mathieu-Costello O (1996) Relationship between fiber capillarization and mitochondrial volume density in control and trained rat soleus and plantaris muscles. Microcirculation 3(2):175–186CrossRefPubMedGoogle Scholar
  9. 9.
    Takahashi T, Yamamoto T, Ono T et al (1998) Neuromuscular, metabolic, and kinetic adaptations for skilled pedaling performance in cyclist. Med Sci Sport Exerc 30:442–449CrossRefGoogle Scholar
  10. 10.
    Ericson M (1986) On the biomechanics of cycling. A study of joint and muscle load during exercise on the bicycle ergometer. Scand J Rehabil Med 16(suppl):1–43Google Scholar
  11. 11.
    Malek MH, Coburn JW, Weir JP et al (2006) The effects of innervation zone on electromyographic amplitude and mean power frequency during incremental cycle ergometry. J Neurosci Methods 155:126–133CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Shun Takagi
    • 1
  • Ryotaro Kime
    • 1
  • Masatsugu Niwayama
    • 2
  • Norio Murase
    • 1
  • Toshihito Katsumura
    • 1
  1. 1.Department of Sports Medicine for Health PromotionTokyo Medical UniversityShunjuku-kuJapan
  2. 2.Department of Electrical and Electronic EngineeringShizuoka UniversityShizuokaJapan

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