Figure 4
From: Shoulder transcutaneous electric nerve stimulation decreases heart rate via potentiating vagal tone
Individual heart rate (HR) of subjects at baseline control (CONT) and 3 min following (A) sham stimulation (TENS-S 3’) and (B, C) TENS at the right and left shoulder (TENS-R 3’ and TENS-L 3’, respectively). Mean HR of CONT and TENS-S/R/L 3’: (A) 77.30 ± 2.31 and 77.00 ± 1.98, (B) 73.84 ± 1.55 and 72.23 ± 1.49, and (C) 76.44 ± 2.18 and 74.77 ± 1.95 bpm, respectively.
