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. 2009 Feb 21;59(3):191–197. doi: 10.1007/s12576-009-0025-y

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© The Author(s) 2009

Open AccessThis is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

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Fig. 4 — Change in mean coherence during random frequency breathing after the application of pressure over the TPs in the lower-limb muscle. Changes in mean coherence between instantaneous lung volume (ILV) and HR after the application of pressure over TPs is shown. The vertical and horizontal scales represent the mean coherence between ILV and HR (n = 6) and breathing frequency (Hz), respectively. The mean coherence both before and after pressure application indicated a strong correlation in the HF breathing zone (0.15–0.50 Hz). Asterisk indicates significant difference from the control (preM) (P < 0.05)