<abstract xmlns="http://www.w3.org/1999/xhtml">

<sec><h3>Background</h3>
<p>Isometric handgrip (IHG) exercise causes changes in heart rate variability (HRV) and hemodynamic responses with individual differences. We test the hypothesis that baseline measurements affect post-exercise outcomes.</p>
</sec>
<sec><h3>Methods</h3>
<p>In this cross-sectional study, 45 males aged 17 to 22 were enrolled from SMS Medical College, Jaipur, India. Hemodynamic and HRV data were collected at baseline, during, and after 5 minutes of IHG exercise. Nonparametric tests compared the absolute and relative responses before, during, and after the exercise. The relationship of baseline measurements with outcomes was evaluated using Pearson's correlation.</p>
</sec>
<sec><h3>Results</h3>
<p>The study showed a significant increase in the absolute values of hemodynamic parameters and LF/HF ratio during and after 5 minutes of IHG exercise compared to the baseline. However, a significant decrease and increase occurred in all the relative hemodynamic parameters and most HRV parameters, respectively, after rather than during the 5 minutes of IHG exercise. Hemodynamic parameters significantly correlated with baseline during and after 5 minutes of IHG exercise. Similarly, baseline affects all the HRV parameters during IHG exercise, but not after 5 minutes of IHG exercise.</p>
</sec>
<sec><h3>Conclusion</h3>
<p>The present study concludes that initial baseline status should be considered while evaluating the post-IHG exercise responses.</p>
</sec>
</abstract>

Background
Isometric handgrip (IHG) exercise causes changes in heart rate variability (HRV) and hemodynamic responses with individual differences. We test the hypothesis that baseline measurements affect post-exercise outcomes.

Methods
In this cross-sectional study, 45 males aged 17 to 22 were enrolled from SMS Medical College, Jaipur, India. Hemodynamic and HRV data were collected at baseline, during, and after 5 minutes of IHG exercise. Nonparametric tests compared the absolute and relative responses before, during, and after the exercise. The relationship of baseline measurements with outcomes was evaluated using Pearson's correlation.

Results
The study showed a significant increase in the absolute values of hemodynamic parameters and LF/HF ratio during and after 5 minutes of IHG exercise compared to the baseline. However, a significant decrease and increase occurred in all the relative hemodynamic parameters and most HRV parameters, respectively, after rather than during the 5 minutes of IHG exercise. Hemodynamic parameters significantly correlated with baseline during and after 5 minutes of IHG exercise. Similarly, baseline affects all the HRV parameters during IHG exercise, but not after 5 minutes of IHG exercise.

Conclusion
The present study concludes that initial baseline status should be considered while evaluating the post-IHG exercise responses.

Effect of Baseline Status on Cardiovascular Responses Post-isometric Handgrip Exercise

Romanian Journal of Cardiology

This work is licensed under the Creative Commons Attribution 4.0 International License.

Background
Isometric handgrip (IHG) exercise causes changes in heart rate variability (HRV) and hemodynamic responses with individual differences. We test the...

Effect of Baseline Status on Cardiovascular Responses Post-isometric Handgrip Exercise

Article Category: Original Article

Published Online: Dec 14, 2022

Page range: 174 - 181

DOI: https://doi.org/10.2478/rjc-2022-0029

Keywords
baseline, blood pressure, cardiovascular, heart rate variability, isometric handgrip

© 2022 Nidhi Gupta et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Effect of Baseline Status on Cardiovascular Responses Post-isometric Handgrip Exercise

Article Category: Original Article

Published Online: Dec 14, 2022

Page range: 174 - 181

DOI: https://doi.org/10.2478/rjc-2022-0029

Keywordsbaseline, blood pressure, cardiovascular, heart rate variability, isometric handgrip

© 2022 Nidhi Gupta et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
baseline, blood pressure, cardiovascular, heart rate variability, isometric handgrip