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Figure 3 | Arthritis Research & Therapy

Figure 3

From: Noninvasive optical characterization of muscle blood flow, oxygenation, and metabolism in women with fibromyalgia

Figure 3

Six-second average data immediately after fatiguing exercise (see the arrows in Figure 1 and Figure 2) as a measure of exercise-induced hemodynamic responses. All parameters were normalized/divided to their baselines (%), resulting in relative change of oxy- and deoxyhemoglobin concentration(r[HbO2] and r[Hb]), total hemoglobin concentration (rTHC), oxygen saturation (rStO2), blood flow (rBF), oxygen extraction fraction (rOEF) and oxygen consumption rate (rVO2). The Student's t-test was used to compare the average rBF (nHC = 23, nFM = 14), r[HbO2], r[Hb], rTHC, rStO2, rOEF and rVO2 (nHC = 20, nFM = 12) in subjects with fibromyalgia (FM) and healthy controls (HC) immediately after fatiguing exercise. *P < 0.05.

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