Rehabilitation Research and Practice

Research Article

Technical Innovation for Visual Assessment of Preterm Newborns in a Neonatal Intensive Care Unit: Exploratory Study

Table 5

Repeated measures analysis.
VariablesRestAssessmentRecovery
HR158 ± 5.30.29
HZ0.24
LF (ms2)0.42
HF (ms2)0.51
LF/HR0.77
SDNN (ms)0.72
RMSSD (ms)0.21
PNN500.75
SD10.24
SD20.88
SD1/SD20.1
APEN0.95
ANOVA repeated measures; ApEn: entropy; HR: heart rate; Hz: hertz; HF: high frequency; LF: low frequency; ms: milliseconds; PNN50: percentage of differences between adjacent normal RR intervals greater than 50 milliseconds; RMSSD: root mean square of the successive differences between adjacent RR intervals; SDNN: standard deviation between normal beats; SD: standard deviation.