Physical training and the dynamics of the cardiac baroreflex: A comparison when blood pressure rises and falls

The utility of low frequency heart rate variability as an index of sympathetic cardiac tone: A review with emphasis on a reanalysis of previous studies

“…In a study conducted to evaluate baroreflex activity as a function of physical fitness 20 regular physical exercisers and 20 sedentary young participants accomplished a computerized mental calculation task (Martín‐Vazquez & Reyes del Paso, ). Table displays HRV for a 5‐min baseline and an 8‐min task period.…”

“…Regular physical exercise enhances resting cardiac vagal activity, reduces sympathetic drive (Forcier et al., ), and increases sensitivity of the cardiac baroreflex (Martín‐Vazquez & Reyes del Paso, ). We reanalyzed our data on the relationship between baroreflex function and physical fitness by examining differences in HRV between a group of 20 sedentary subjects and 20 regular exercisers.…”

“…The only significant association contradicted the expectations in the sense that LF power correlated positively with PTT assessed during letter cancellation as well as time reaction tasks. In the physical exercise study (Martín‐Vázquez & Reyes del Paso, ), we used impedance cardiography in order to assess pre‐ejection period (PEP), one of the most reliable and valid noninvasive indicator of β 1 ‐cardiac adrenergic influences (McCubbin, Richardson, Langer, Kizer, & Obrist, ; Sherwood et al., ). No associations were found between HRV and PEP (Table ).…”

Autonomic cardiovascular control and responses to experimental pain stimulation in fibromyalgia syndrome

“…If the inverse association can be replicated, this may enhance the interest in the possible therapeutic effects of increasing baroreflex function. This can be achieved with behavioral techniques including physical exercise [53], breathing training [54], and biofeedback [55] as well as with the pharmacological strategies.…”

Asymmetries in reciprocal baroreflex mechanisms and chronic pain severity: Focusing on irritable bowel syndrome

“…In patients, the asymmetry in the reciprocal (eg, gains of baroreceptor inhibition and activation) processes regulating CV activity may impact different pain‐related mechanisms . Indeed, findings of a few studies used pharmacological and spontaneous baroreflex assessment techniques proposed that the symmetry in mechanisms related to baroreceptor activation or loading (BP increases) and baroreceptor inhibition or unloading (BP decreases) may be an indicator of CV (eg, HRV and BP level), metabolic, physical, and mental (eg, mood) health . This relationship between baroreflex symmetry and health is related to the appropriateness of body/mind state‐related trade‐offs between parasympathetic and sympathetic activities .…”