Actigraphy as a biomarker

Xiao Q, Sampson JN, LaCroix AZ, Shadyab AH, Zeitzer JM, Ancoli-Israel S, Yaffe K, Stone K, Osteoporotic Fractures in Men (MrOS) Study Group (2021) Nonparametric parameters of 24-hour rest-activity rhythms and long-term cognitive decline and incident cognitive impairment in older men. Journal of Gerontology: Biological Sciences, in press.

Xiao Q, Lu J, Zeitzer JM, Matthews CE, Saint-Maurice PF, Bauer C (2022) Rest-activity profiles among U.S. adults in a nationally representative sample: a functional principal component analysis. International Journal of Behavioral Nutrition and Physical Activity 19: 32.

Miner B, Stone KL, Zeitzer JM, Han L, Doyle M, Blackwell T, Gill TM, Redeker NS, Hajduk A, Yaggi HK (2021) Self-reported and actigraphic short sleep duration in persons with advanced age. Journal of Clinical Sleep Medicine 18: 403-413.

Posner AB, Tranah GJ, Blackwell T, Yaffe K, Ancoli-Israel S, Redline S, Leng Y, Zeitzer JM, Chen DM, Webber KR, Stone KL (2021) Predicting incident dementia and mild cognitive impairment in older women with nonparametric analysis of circadian activity rhythms in the Study of Osteoporotic Fractures. Sleep 44: zsab119.

Zeitzer JM, Blackwell T, Hoffman AR, Ancoli-Israel S, Stone K, MrOS (2018) Daily patterns of accelerometer activity predict changes in sleep, cognition, and mortality in older men. Journal of Gerontology A Biological Science and Medical Science 73: 682-687. PMCID: PMC5905637

Zeitzer JM, David R, Friedman L, Mulin E, Garcia R, Wang J, Yesavage JA, Robert PH, Shannon W (2013) Phenotyping apathy in individuals with Alzheimer’s using functional principal component analysis. American Journal of Geriatric Psychiatry 21:391-397. PMCID: PMC3603283.