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Fig. 2 | Biological Research

Fig. 2

From: Heart rate and cardiac autonomic responses to concomitant deep breathing, hand grip exercise, and circulatory occlusion in healthy young adult men and women

Fig. 2

Effect of deep breathing (DB) + hand grip (DB + HG) + occlusion (DB + HG + OC) on heart rate variability (HRV) during recovery period 3 in men. A Representative time-varying spectrum of HRV during baseline period, DB + HG + OC and recovery period 3 from one man. Note that the power spectral density at low frequency (LF, 0.04–0.08 Hz) and high frequency (HF, 0.08–0.45 Hz) component of HRV, were decreased and increased, respectively, during recovery period 3 compared to the baseline. B Summary data of LF to HF ratio during baseline, DB + HG + OC, and during recovery period 3. Note that LF/HF ratio was significantly reduced in recovery period 3 compared to the baseline. C Summary data of LF and HF during baseline, DB + HG + OC, and during recovery period 3. D, E Interindividual response of LF and HF of HRV in men, respectively. Data analyzed by one-way ANOVA, followed by Holm-Sidak post hoc. *, p < 0.05; **, p < 0.01

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Biological Research

ISSN: 0717-6287

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