Heart rate variability biofeedback (HRV BFB) is paced breathing scheme that stimulates resonance in the cardiovascular system. This study aimed to investigate effect of a single-session HRV BFB on Hoffman reflex (H-reflex) soleus muscle. Twelve healthy males (height: 173.7 ± 7.18 cm; weight: 72.7 17.7 kg; age: 24.0 5.02 yrs) completed randomized-crossover intervention involving 10-minute and no...

We tested the impact of heart rate variability biofeedback (HRV-BF) on police performance in order to reduce protocol gaps and response time scenarios that simulate life-threatening situations. The sample gathered fifty-one frontline officers from city Barueri Brazil who were distributed into two groups: (i) experimental group (26 officers) which attended a 5-days HRV-BF training; (ii) control ...

pyridostigmine bromide (pb) is a reversible cholinesterase inhibitor. the aim of this study was to determine the effect of orally administration of single dose sustained-released tablet of pyridostigmine bromide (pbsr) on the frequency domain indices of heart rate variability (hrv). thirty-two healthy young men were participated in this study. they were divided into 2 groups; the pyridostigmine...