TY - GEN
T1 - Muscle oxygen saturation heterogeneity among leg muscles during ramp exercise
AU - Takagi, Shun
AU - Kime, Ryotaro
AU - Niwayama, Masatsugu
AU - Murase, Norio
AU - Katsumura, Toshihito
PY - 2013
Y1 - 2013
N2 - 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 (VO 2) 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.
AB - 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 (VO 2) 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.
KW - Cycling exercise
KW - Heterogeneity
KW - Muscle oxygen saturation
KW - Near-infrared spatial resolved spectroscopy
KW - Oxygen uptake
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U2 - 10.1007/978-1-4614-4989-8-38
DO - 10.1007/978-1-4614-4989-8-38
M3 - Conference contribution
C2 - 22879044
AN - SCOPUS:84867515395
SN - 9781461447719
VL - 765
T3 - Advances in Experimental Medicine and Biology
SP - 273
EP - 278
BT - Advances in Experimental Medicine and Biology
ER -