Thursday, 21 April 2022

Effect of Physical Stress on Heart Rate Variability (HRV) in Subjects of Type 'A' and Type 'B' Personality | Chapter 02 | New Horizons in Medicine and Medical Research Vol. 3

 Background: Stress is described as a person's incapacity to cope with a change in their circumstances. Stress can be mental, physical, or a combination of both. To attain the goal, you'll need to be stressed to the maximum, yet too much stress can make you sick. The ability of people to cope with stress differs depending on their personalities. Individual qualities such as age, physical well-being, personality, and so on all influence the stress reaction. Our autonomic functions, which may be quantified in terms of heart rate variability, are affected by stress (HRV). As a result, the goal of this research was to examine the impact of physical stress on Type 'A' and Type 'B' personality types.

Methodology: For this study, 30 persons aged 18 to 30 with Type 'A' personalities and 30 people aged 18 to 30 with Type 'B' personalities were recruited. For short-term analysis, HRV was assessed in all individuals at rest (baseline) and after physical stress for five minutes. A 45-degree shoulder abduction of one arm with maximum extension was used to apply physical stress.

The participants with Type 'A' personalities had greater baseline heart rates than those with Type 'B' personalities. When physical stress was applied, sympathetic parameters (LF, LF: HF ratio) declined and parasympathetic parameters (HF) increased in Type 'A' personality participants, whereas parasympathetic parameters (HF) increased and sympathetic parameters (LF) decreased in Type 'B' personality subjects.

Conclusions: Physical stress benefits Type 'A' personality subjects by increasing parasympathetic activity, but Type 'B' personality subjects cannot cope with physical stress due to increased sympathetic activity.

Author(S) Details


Anuradha Yadav
Department of Physiology, S. M. S. Medical College, Jaipur (Raj) India.

Nisha Awasthi
Department of Physiology, S. M. S. Medical College, Jaipur (Raj) India.

Manisha Sankhla
Department of Physiology, S. M. S. Medical College, Jaipur (Raj) India.

Kusum Lata Gaur
Department of Community Medicine, S. M. S. Medical College, Jaipur (Raj) India.

View Book:-
https://stm.bookpi.org/NHMMR-V3/article/view/6331

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