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1.
Figure 1

Figure 1. The recruitment procedure.. From: Cardiac Repolarization and Autonomic Regulation during Short-Term Cold Exposure in Hypertensive Men: An Experimental Study.

BP, blood pressure. a Four subjects excluded for the usage of BP medication and one for inadequate data quality.b One subject excluded for the usage of BP medication and two did not perform cold exposure for safety reasons.

Heidi Hintsala, et al. PLoS One. 2014;9(7):e99973.

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2.
Figure 3

Figure 3. Example ECG presenting changes in cardiac repolarization.. From: Cardiac Repolarization and Autonomic Regulation during Short-Term Cold Exposure in Hypertensive Men: An Experimental Study.

Figure presents a median ECG from 10 consecutive beats as an example of changes in T-wave in lead II before (baseline), during, and after (recovery) cold exposure. Cold exposure increased T-peak to T-end interval and T-wave amplitude.

Heidi Hintsala, et al. PLoS One. 2014;9(7):e99973.

CitationFull text

3.
Figure 2

Figure 2. ECG changes during cold exposure.. From: Cardiac Repolarization and Autonomic Regulation during Short-Term Cold Exposure in Hypertensive Men: An Experimental Study.

T-peak to T-end interval in lead II (A), T-wave amplitude in lead V5 (B), QTc in lead V5 (C), and HR (D) of hypertensive men (N = 51) and controls (N = 32) before (baseline), during, and after (recovery) cold exposure. Values represent means and standard error of the means.

Heidi Hintsala, et al. PLoS One. 2014;9(7):e99973.

CitationFull text

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