Key result
A brief mental load induced tension in central regulatory mechanisms of the heart across all ages, with the highest degree of tension and longest recovery time observed in the 36-60 year old group.
Why the study?
How does a brief mental load affect heart rate variability across different age groups?
Cross-Sectional
How does a brief mental load affect heart rate variability across different age groups?
Older adults (36-60 years) exhibit greater autonomic tension and delayed recovery during mental stress compared to younger individuals, suggesting decreased adaptive autonomic responses with age.
Mental load may transiently affect cardiac regulation most in middle age; hypothesis-generating and requires prospective validation before clinical relevance.
The features of heart rate variability before, during and after a brief mental load in three age groups (17–21, 22–35 and 36–60 years old) were studied. It is shown that for all groups during the mental load some tension of central regulatory mechanisms of heart is typical. The highest degree of tension is found in subjects from the III group (36–60 years old). In these subjects the recovery of regulatory systems up to the baseline took more time. These changes of regulatory systems that occur in older age group, most probably, are connected with a decrease of adaptive responses and some limitation of functional capabilities. Refs 16. Figs 2. Tables 2.
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Tumanyan et al. (2015) reported a cross-sectional. Brief mental load vs. Baseline and across age groups was evaluated on Heart rate variability (tension of central regulatory mechanisms and recovery time). A brief mental load induced tension in central regulatory mechanisms of the heart across all ages, with the highest degree of tension and longest recovery time observed in the 36-60 year old group.
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