Journal: Sensors (Basel, Switzerland)

Article Title: Non-Contact Measurements of Electrocardiogram and Cough-Associated Electromyogram from the Neck Using In-Pillow Common Cloth Electrodes: A Proof-of-Concept Study

doi: 10.3390/s21030812

Figure Lengend Snippet: Comparison of spectra of spectral power density (PSD) of heart rate variability (HRV) between ECG ref and cECG.

Article Snippet: Timing data of the R-waves detected in the ECG analysis of 2.4.1 were analyzed by the “HRV analysis” function in commercially available software (AcqKnowledge4.1, BIOPAC Systems).

Techniques: Comparison

Journal: Scientific Reports

Article Title: Effect of olfactory stimulation from aromatherapy on the autonomic nervous activity during aerobic exercises

doi: 10.1038/s41598-024-61732-w

Figure Lengend Snippet: Mean values and their respective standard deviations of indices in the HRV analysis during rest, exercise, and recovery (Rec), obtained from the aroma and control conditions. These indices at rest were standardized to zero, and their changes were compared. *Values with significant differences than at rest (Friedman test followed by the Bonferroni correction; P < 0.05); †Values with significant differences than at rest (One way ANOVA for repeated measures followed by the Bonferroni correction; P < 0.05); #Values with significant difference than during aroma and control conditions (paired t-test; P = 0.028).

Article Snippet: HR and HRV indices were analyzed using HRV analysis software (Lab Chart 8, Nihon Bioresearch Inc., Japan) at the following time intervals: Rest (rest 5–10 min), Exercise (exercise 15–20 min), Rec1 (recovery period 0–5 min), Rec2 (recovery period 5–10 min), and Rec3 (recovery period 10–15 min).

Techniques: Control