Journal Article


Dana R Epstein
Alan F. Smeaton
Eamonn Newman
Feiyan Hu
Matthew P Buman


Physiotherapy & Sport

cholesterol ldl longitudinal data health risk wrist periodicity detection accelerometry health related quality of life physical activity

Behavioral Periodicity Detection from 24 h Wrist Accelerometry and Associations with Cardiometabolic Risk and Health-Related Quality of Life. (2015)

Abstract Periodicities (repeating patterns) are observed in many human behaviors. Their strength may capture untapped patterns that incorporate sleep, sedentary, and active behaviors into a single metric indicative of better health. We present a framework to detect periodicities from longitudinal wrist-worn accelerometry data. GENEActiv accelerometer data were collected from 20 participants (17 men, 3 women, aged 35-65) continuously for 64.4 ± 26.2 (range: 13.9 to 102.0) consecutive days. Cardiometabolic risk biomarkers and health-related quality of life metrics were assessed at baseline. Periodograms were constructed to determine patterns emergent from the accelerometer data. Periodicity strength was calculated using circular autocorrelations for time-lagged windows. The most notable periodicity was at 24 h, indicating a circadian rest-activity cycle; however, its strength varied significantly across participants. Periodicity strength was most consistently associated with LDL-cholesterol (r's = 0.40-0.79, P's < 0.05) and triglycerides (r's = 0.68-0.86, P's < 0.05) but also associated with hs-CRP and health-related quality of life, even after adjusting for demographics and self-rated physical activity and insomnia symptoms. Our framework demonstrates a new method for characterizing behavior patterns longitudinally which captures relationships between 24 h accelerometry data and health outcomes.
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Full list of authors on original publication

Dana R Epstein, Alan F. Smeaton, Eamonn Newman, Feiyan Hu, Matthew P Buman

Experts in our system

Dana R. Epstein
Dublin City University
Total Publications: 3
Alan F. Smeaton
Dublin City University
Total Publications: 492
Eamonn Newman
Dublin City University
Total Publications: 28
Feiyan Hu
Dublin City University
Total Publications: 16