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Feasibility of one-month home-based HRV monitoring in ASD: a case study using smart clothing technology
Soichiro Matsuda1, Yurina Shinohara2
1Behavioral Design Laboratory, Institute of Human Sciences, University of Tsukuba, Tsukuba, Japan.
Background:
Sleep disturbances and autonomic dysregulation are common in autism spectrum disorder (ASD), yet few studies have examined long-term nocturnal heart rate variability (HRV) in home settings.
Objective:
This study evaluated the feasibility of one-month home-based HRV monitoring using smart clothing in a preschooler with ASD, and explored whether nocturnal HRV predicts next-day problem behaviors.
Methods:
HRV was recorded nightly for 25 valid days using a garment-type wearable ECG. Problem behaviors were reported daily by caregivers. HRV indices were compared between nights preceding days with and without problem behaviors using Wilcoxon signed-rank tests.
Results:
No significant differences in total sleep time or HRV indices were found between the two day types.
Conclusion:
Although HRV did not predict next-day behavior, the study demonstrates the feasibility and methodological transparency of long-term home-based physiological monitoring in young children with ASD.
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