Effect of Capacitive and Resistive electric transfer on haemoglobin saturation and tissue temperature

Figures & data

Figure 1. The experiment setting with the intervention and measurement devices.

Figure 2. Experimental procedure. Haemoglobin saturation and tissue temperature were measured during 5 min before the intervention (I0, T0). Then, the interventions were performed for 15 min. After the intervention, haemoglobin saturation continuously measured for 30 min, and it was divided into six intervals; from I1 to I6. Tissue temperatures were measured seven times (T2–T7) after the intervention every 5 min.

Table 1. Haemoglobin saturation in each group.

		CRet	HP	sham
Total-Hb	I0	86.4 (73.8–100.4)	86.4 (62.1–100.8)	90.5 (76.5–104.9)
	I1	96.8 (80.8–107.1)*§	93.2 (71.1–105.2)†	88.7 (76.0–100.8)
	I2	97.2 (79.8–107.6)*§	93.6 (72.5–104.9)†	90.3 (78.2–105.3)
	I3	99.0 (80.4–105.3)*§	92.3 (71.1–103.8)†	89.2 (77.4–101.3)
	I4	98.0 (80.6–109.1)*§	93.6 (71.1–104.0)†	89.9 (77.0–100.3)
	I5	98.2 (80.4–108.4)*§	92.7 (69.3–104.1)†	90.6 (77.4–100.4)
	I6	98.1 (79.8–108.9)*§	92.3 (69.8–103.8)†	92.6 (78.3–99.5)
Oxy-Hb	I0	53.6 (43.7–67.1)	53.6 (39.2–67.1)	58.5 (45.5–65.7)
	I1	65.8 (58.5–76.1)*§	60.0 (48.2–75.2)†	56.3 (45.0–69.0)
	I2	66.6 (59.9–76.1)*§	61.3 (49.1–75.1)†	55.8 (47.3–69.5)
	I3	65.4 (59.9–74.7)*§	60.2 (48.6–74.3)†	56.3 (46.4–68.5)
	I4	64.8 (56.3–77.9)*§	60.5 (49.1–74.3)†	55.8 (46.4–69.0)
	I5	64.8 (57.2–77.4)*§	60.0 (47.7–74.1)†	55.8 (47.3–68.4)
	I6	64.8 (56.3–77.9)*§	59.4 (48.2–74.0)†	56.3 (46.8–69.0)
Deoxy-Hb	I0	32.9 (16.7–36.0)	30.2 (22.1–39.6)	33.8 (28.8–40.1)
	I1	30.6 (15.0–35.6)	30.2 (19.8–38.0)	32.4 (29.0–39.6)
	I2	30.6 (14.8–34.7)	30.6 (18.9–38.1)	32.0 (28.8–39.2)
	I3	31.4 (15.0–34.7)	30.2 (19.0–37.9)	31.9 (28.4–39.6)
	I4	31.2 (15.3–35.1)	29.7 (19.8–38.0)	32.0 (28.8–39.2)
	I5	31.1 (15.4–35.6)	30.0 (19.5–37.8)	32.0 (28.0–39.2)
	I6	32.0 (15.0–36.0)	30.2 (19.4–38.0)	32.0 (27.9–39.0)

Unit: μmol/l, median (minimum value–maximum value).

* p < 0.016 CRet (Capacitive and Resistive electric transfer) versus sham.

† p < 0.016 HP (hotpack) versus sham.

§ p < 0.016 CRet versus HP.

Table 2. Tissue temperature in each group.

		CRet	HP	sham
ST	T0	32.2 (31.6–33.6)	32.8 (31.6–33.6)	33.2 (31.6–33.6)
	T1	36.0 (34.8–36.9)*	36.5 (35.5–37.3)†	31.7 (30.3–33.7)
	T2	35.4 (34.6–36.4)*	35.5 (34.9–36.4)†	31.7 (30.9–33.3)
	T3	35.0 (33.9–35.8)*	35.1 (33.9–35.6)†	31.8 (31.0–33.3)
	T4	34.8 (33.4–35.5)*	34.7 (33.0–35.3)†	32.0 (31.2–33.5)
	T5	34.5 (33.1–35.3)*	34.4 (32.8–35.1)†	32.4 (31.2–33.5)
	T6	34.0 (32.8–35.2)*	33.7 (32.4–35.1)†	32.6 (31.3–33.5)
	T7	33.8 (32.5–35.0)*	33.3 (32.2–35.1)†	32.5 (31.1–33.4)
10 mmDT	T0	34.9 (33.5–35.7)	35.2 (33.5–35.7)	35.1 (34.1–36.0)
	T1	38.1 (37.5–39.0)*	38.0 (37.5–38.5)†	34.1 (31.9–35.6)
	T2	37.7 (37.3–39.0)*§	37.5 (37.0–37.8)†	34.4 (32.3–35.7)
	T3	37.4 (36.9–38.5)*§	36.9 (36.6–37.4)†	34.5 (32.5–35.6)
	T4	37.2 (36.6–38.0)*§	36.8 (36.5–37.2)†	34.5 (32.7–35.9)
	T5	37.0 (36.5–37.7)*§	36.7 (36.4–37.1)†	34.8 (32.9–36.0)
	T6	37.0 (36.4–37.5)*§	36.6 (36.1–37.1)†	35.3 (33.1–36.2)
	T7	36.9 (36.3–37.5)*§	36.4 (35.5–37.1)†	35.5 (33.3–36.3)
20 mmDT	T0	34.9 (33.5–35.7)	35.0 (33.5–35.7)	35.1 (33.7–35.9)
	T1	38.2 (37.4–38.9)*§	37.9 (37.5–38.4)†	33.8 (32.4–35.4)
	T2	37.6 (37.0–38.4)*§	37.2 (36.7–37.6)†	34.2 (32.8–35.7)
	T3	37.4 (36.7–37.8)*§	36.8 (36.2–37.2)†	34.6 (33.0–35.9)
	T4	37.1 (36.4–37.7)*§	36.7 (36.0–37.1)†	34.8 (33.3–36.1)
	T5	37.0 (36.0–37.6)*§	36.6 (35.5–37.1)†	34.7 (33.5–36.2)
	T6	36.9 (35.8–37.6)*§	36.6 (35.2–37.1)†	34.9 (33.8–36.2)
	T7	36.8 (35.6–37.5)*§	36.5 (34.8–37.1)†	35.0 (34.0–36.3)

Unit: degree. °n, median (minimum value–maximum value).

* p < 0.016 CRet (Capacitive and Resistive electric transfer) versus sham.

† p < 0.016 HP (hotpack) versus sham.

§ p < 0.016 CRet versus HP.