Do Longer Exhalations Increase HRV During Slow-Paced Breathing?

Slow-paced breathing at an individual's resonance frequency (RF) is a common element of heart rate variability (HRV) biofeedback training (Laborde et al. in Psychophysiology 59:e13952, 2022). Although there is strong empirical support for teaching clients to slow their respiration rate (RR) to the adult RF range between 4.

Navigating the Health Professional Migration Tsunami in the Era of COVID-19 and Globalization: A Call to Action for a Collective and Coordinated Response from Government and Non-Government Organizations.

Migration has always been a part of human history [...

A Conceptual Model for Professional Identity in Nursing: An Interdependent Perspective.

The purpose of this initiative was to define the development, verification, and evolution of the conceptual model for Professional Identity in Nursing. This action research design occurred over two phases, utilizing observations, a modified Norris process for model development, and focus groups. Analysis consisted of conventional content analysis and the Fawcett method for conceptual model analysis and evaluation.

Adding Core Muscle Contraction to Wrist-Ankle Rhythmical Skeletal Muscle Tension Increases Respiratory Sinus Arrhythmia and Low-Frequency Power.

Paced breathing and rhythmical skeletal muscle tension (RSMT) at an individual's resonance frequency [~ 6 breaths or contractions per min (cpm)] can stimulate the arterial and vascular tone baroreflexes. Lehrer (Appl Psychophysiol Biofeedback 1-10, 2022, https://doi.org/10.