Department of Physical Therapy, Niigata University of Health and Welfare, Niigata, Japan.
Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan.
Adv Exp Med Biol. 2021;1269:295-300. doi: 10.1007/978-3-030-48238-1_47.
It has been reported that the cardiovascular response in the supine position is different from that in the sitting position. However, there are few reports on the effects of posture on cerebral oxygenation during exercise. Cycling exercises change oxygenated hemoglobin (OHb) and deoxygenated hemoglobin (HHb) levels in motor-related areas. Therefore, this study compared OHb levels at motor-related areas during recumbent versus supine cycling. Eleven healthy young male performed a 30-min cycling exercise protocol at 50% of the maximal oxygen uptake (VO max) in the recumbent and supine positions. Near-infrared spectroscopy (NIRS) was used to measure exercise-induced OHb and HHb changes in the right (R-PMA) and left premotor areas (L-PMA), supplementary motor area (SMA), and primary motor cortex (M1). In R-PMA, L-PMA and SMA, the OHb obtained during supine cycling was significantly higher than that during recumbent cycling (R-PMA, 0.031 ± 0.01 vs. 0.693 ± 0.01; L-PMA, 0.027 ± 0.01 vs. 0.085 ± 0.013; SMA, 0.041 ± 0.011 vs. 0.076 ± 0.008 mM·cm, recumbent vs. supine position; p < 0.05). These results suggest that supine cycling exercise increases R-PMA, L-PMA, and SMA OHb levels in healthy young men.
已有报道称，仰卧位的心血管反应与坐姿不同。然而，关于运动时姿势对脑氧合的影响的报道较少。自行车运动改变与运动相关的区域中的氧合血红蛋白（OHb）和去氧血红蛋白（HHb）水平。因此，本研究比较了仰卧位和卧位自行车运动时与运动相关区域的 OHb 水平。11 名健康年轻男性以最大摄氧量（VO max）的 50%在仰卧位和仰卧位进行 30 分钟的自行车运动方案。近红外光谱（NIRS）用于测量右侧（R-PMA）和左侧运动前区（L-PMA）、辅助运动区（SMA）和初级运动皮层（M1）运动诱导的 OHb 和 HHb 变化。在 R-PMA、L-PMA 和 SMA 中，仰卧位自行车运动时的 OHb 明显高于卧位自行车运动时（R-PMA，0.031 ± 0.01 vs. 0.693 ± 0.01；L-PMA，0.027 ± 0.01 vs. 0.085 ± 0.013；SMA，0.041 ± 0.011 vs. 0.076 ± 0.008 mM·cm，卧位 vs. 仰卧位；p < 0.05）。这些结果表明，仰卧位自行车运动增加了健康年轻男性的 R-PMA、L-PMA 和 SMA 的 OHb 水平。
