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Updated: Apr 10, 2026
Noninvasive, High-throughput Determination of Sleep Duration in Rodents
Published on: April 18, 2018
Actigraphy is not a reliable method for measuring sleep patterns in neonates
Stéphane Rioualen1,2, Jean-Michel Roué1,2, Jérémie Lefranc1
1Pôle de la Femme de la Mère et de l'Enfant, CHRU Brest, Brest, France.
Insights
Actigraphy is not reliable for detecting sleep-wake patterns in newborn infants. Polysomnography remains the gold standard for sleep studies in preterm and term neonates.
Area of Science:
- Neonatal sleep research
- Infant sleep-wake patterns
- Biomedical engineering in neonatology
Background:
- Polysomnography is the gold standard for sleep studies but is complex for unstable preterm infants.
- Evaluating alternative methods for sleep pattern detection in neonates is crucial.
Purpose of the Study:
- To assess the reliability of actigraphy compared to polysomnography in detecting sleep-wake patterns in newborn infants.
- To compare the efficacy of the Actiwatch Mini in preterm and term neonates.
Main Methods:
- A prospective study involving 48 infants (24 late preterm, 24 term).
- Simultaneous measurement of sleep patterns using polysomnography and Actiwatch Mini over three hours.
- Comparison of data from both devices to evaluate reliability.
Main Results:
- Actigraphy sensitivity ranged from 78% to 93% in preterm and term infants.
- Specificity for actigraphy was lower, ranging from 20% to 42%.
- The Actiwatch Mini demonstrated variable reliability across different infant groups and sensor placements.
Conclusions:
- Actigraphy with the Actiwatch Mini is not a reliable method for assessing sleep in healthy late preterm and term neonates shortly after birth.
- Polysomnography remains the preferred method for accurate sleep pattern analysis in this population.
Aim:
Polysomnography is the gold standard for studying sleep, but it is complex to use, and this can be problematic in clinically unstable preterm infants. We evaluated the reliability of actigraphy and polysomnography in detecting sleep-wake patterns in newborn infants.
Methods:
A prospective, monocentric study was conducted that measured the sleep patterns of 48 infants: 24 late preterm neonates born at 34-36 weeks of gestational age and 24 term neonates. We used both polysomnography and the Actiwatch Mini during a three-hour period and then compared the results from the two methods.
Results:
The baseline measurements for the preterm and terms groups were as follows: gestational age (34.5 weeks and 39.2 weeks), birthweight (2368 g and 3393 g) and age (6.4 days and 0.72 days). With the Actiwatch Mini, sensitivity for the late preterm and full-term infants was 78% and 87% for the leg actigraph and 78% and 93% for the arm actigraph. For specificity, the respective figures were 42% and 31% for the leg and 34% and 20% for the arm.
Conclusion:
Actigraphy using the Actiwatch Mini was not a reliable method for measuring sleep patterns in healthy late preterm and term neonates a few days after birth.
