Key result
Face cooling significantly increased the root mean square of successive differences (RMSSD) by 47.4 ms in the first minute compared to rest, demonstrating the utility of mobile HRV monitoring.
Why the study?
Heart rate variability reflects autonomic nervous system function and is of interest after traumatic brain injury, but validation with larger sample sizes and a model for baseline reactivity in healthy individuals were needed.
Does face cooling (diver's reflex) alter HRV metrics (RMSSD and LF/HF ratio) in healthy college athletes?
Cross-Sectional (n=62)
No
Does face cooling (diver's reflex) alter HRV metrics (RMSSD and LF/HF ratio) in healthy college athletes?
Mean Difference: 47.4
Absolute Event Rate: 138.2% vs 91%
p-value: p=<0.001
The Elite HRV CorSense monitor can rapidly detect autonomic nervous system changes via the diver's reflex, providing a potential mobile framework for establishing baseline HRV in athletes.
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Seltzer et al. (2021) conducted a cross-sectional in Healthy (n=62). Face cooling vs. At rest was evaluated on Change in RMSSD at 1 minute following face cooling (MD 47.4 ms, p=<0.001). Face cooling significantly increased the root mean square of successive differences (RMSSD) by 47.4 ms in the first minute compared to rest, demonstrating the utility of mobile HRV monitoring.
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