SLEEP · 2007 · 76 citations · 28 references
The %VLFI and LF/HF ratio provide indirect measures of sleep fragmentation, suggesting that HRV measures during sleep assess more the associated sleep fragmentation than the presence of a specific sleep disorder.
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W.T. McNicholas, Kingman P. Strohl, David P. White et al. · PubMed · 1999 · 3.7K citations
Asthma, Sleep Medicine, Sleep +14