Related Experiment Video
Updated: Feb 14, 2026

A Protocol for Comprehensive Assessment of Bulbar Dysfunction in Amyotrophic Lateral Sclerosis ALS
Published on: February 21, 2011
Comprehensive assessment of autonomic dysfunction in patients with asthma using the regulatory systems activity index
Y I Slyvka1, V P Feketa1, M V Virah1
1Department of Physiology And Pathophysiology, Faculty of Medicine, State Institution of Higher Education "Uzhhorod National University", Uzhhorod, Ukraine.
Abstract:
The regulatory systems activity index (RSAI), proposed by RM Bayevsky, can be used as an integral measure of the functional stress of the autonomic nervous system in patients with asthma. RSAI values of 8-10 should be used as a criteria for maladaptive and prognostically unfavorable course of asthma. Autonomic dysfunction at these RSAI levels is characterized by a pronounced reduction in total power of the spectrum of heart rate variability (HRV) (TP<1000ms), significant predominance of humoral-metabolic waves (VLF> 65%), increased activity of the sympathetic nervous system(LF/HF> 3.0), and high index of centralization (IC > 8).
More Related Videos
Related Concept Videos
Global Regulatory Systems
Cis-regulatory Sequences
Asthma-I: Introduction
Autonomic Nervous System
The ANS comprises two main divisions: the sympathetic and parasympathetic divisions. These divisions function antagonistically to maintain a dynamic...
Asthma-III: Symptoms and Complications
Classification of Asthma
Asthma-IV: Diagnostic and Management
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:

