Sentence examples for change lf from inspiring English sources

According to Goldstein et al. [ 18], with or without adjustment for HF power or respiration, LF power seems to provide an index not of cardiac sympathetic tone but of baroreflex function once manipulations and drugs that change LF power or LF/HF do so not by affecting cardiac autonomic outflows directly but by affecting modulation of those outflows by baroreflex.

Interpreting changes in LF and LF/HF is controversial; LF may to some extent reflect sympathetic influences, whereas LF/HF possibly reflects sympathovagal balance (Task Force of the European Society of Cardiology 1996).

Fig. 13 BPa with change in Lf.

No detectable change in LF activity was observed in the presence of z-FA-FMK (Figure 3C).

In control individuals there was minimal change in LF HRV in response to standing, which is consistent with a normal response.

The complete toxin complex is endocytosed and, upon acidification of the early endosome, the prepore undergoes conformational change whereby LF and EF are translocated into the cytosol (for review see [ 9]).

9 For instance, stress resulting from computer work induces a bilateral variation of HR of a magnitude greater than 5 bpm, without a significant change on LF energy, but a significant variation of HF energy.

Our analysis of the heart-rate variability, revealing no shift in the sympathovagal balance (no change in LF and HF components or their ratios), argues against a general elevation of the plasma levels of catecholamines, and suggests a more-complex feedback mechanism (such as a presynaptic inhibition) being involved.

To assess changes in LF, HF, and LF/HF ratio before and after each MEG session, two-way ANOVA for repeated measures were performed.

Furthermore, several studies have shown that transforming growth factor- β (TGF- β) is involved in the process of hypertrophic changes during LF [ 15, 16].

Table 2 presents the independent associations of GST genotypes, SHS, and obesity with changes in LF, HF, and TP HRV parameters.