Abstract
The ActiGraph CentrePoint Perception Watch is a compact, battery-operated wearable exercise recording machine that makes use of a triaxial accelerometer to accumulate and retailer knowledge whereas worn throughout regular actions and/or throughout sleep. This watch additionally has a near-body pores and skin temperature sensor and occasion marker. The information report is timestamped and saved in non-volatile reminiscence for later retrieval. Downloaded knowledge might be post-processed based mostly on the timestamp and magnitude of acceleration alongside every axis. The housing is constructed of a mix of opaque and clear copolyesters formulated particularly for medical gadgets (i.e., examined and decided biocompatible), and the core knowledge assortment sensor is a 3-axis microelectromechanical system (MEMS) accelerometer. Per its 5/24/18 FDA indications, its meant use is to watch exercise related to motion throughout sleep, for analyzing circadian rhythms, and to evaluate exercise in any occasion the place quantifiable evaluation of bodily movement is fascinating. Knowledge outputs embody sleep measures (TST, SE, WASO, SOL), sleep fragmentation index, exercise measures, and gait/ steadiness measures. Actigraph has 2 different watches: LEAP which provides PPG (and different sensors and outputs) and ActiGraph wGT3X-BT watch which has the accelerometer however not different CentrePoint Perception watch or LEAP options. All 3 watches seem to make use of the identical accelerometer knowledge assortment and processing.
Claimed Capabilities/Measurements
CentrePoint Perception Watch is a medical grade wearable designed for scientific analysis to gather and monitor bodily exercise, purposeful mobility, and sleep knowledge in close to actual time. It boasts a protracted battery life and passive knowledge uploads for simpler participant and workers usability. Steady knowledge assortment helps the efficacy and security wanted for scientific trials.
Mechanism
Motion, near-body pores and skin temperature
Sensors
Triaxial MEMS accelerometer; near-body pores and skin temperature sensor
Technical Concerns
CentrePoint Perception Watch to ActiGraph’s safe cloud platform is by means of a cellular-powered residence knowledge hub or a patient-facing cell utility. A charging dock related to a USB energy supply is used to cost the machine battery and talk with a PC or peripheral.
Associated Publications and Abstracts
Quotation: Almidani L, Varadaraj V, Banerjee S, E JY, Mihailovic A, Ramulu PY. The Quantitative Impression of Visible Perform on Accelerometer-measured Bodily Exercise in Older United States Adults: A Nationwide Cross-sectional Evaluation. Ophthalmol Sci. 2023 Dec 30;4(4):100464.
DOI: https://doi.org/10.1016/j.xops.2023.100464
URL: https://www.ophthalmologyscience.org/article/S2666-9145(23)00196-3/fulltext
Business Assist: No
Validation Examine: No
Comparability Check(s): N/A
Examine Abstract: This research examined the influence of varied goal imaginative and prescient measures (i.e., distance and close to visible acuity, distinction sensitivity) on accelerometry-measured bodily exercise (e.g., exercise fragmentation and exercise patterns) for older adults. Knowledge for bodily exercise was collected by the accelerometer Actigraph CentrePoint Perception Watch , wherein the contributors had been requested to put on the watch on their nondominant wrist, and maintain it on 24 hours a day for a interval of seven consecutive days. 4 accelerometry-defined bodily exercise metrics had been measured: (1) energetic minutes per day, (2) variety of energetic bouts per day, (3) imply size of energetic bouts, and (4) exercise fragmentation. In comparison with usually sighted people, older adults with goal visible impairment confirmed much less day by day bodily exercise, increased exercise fragmentation, and fewer day by day exercise bouts. The authors conclude that older adults with visible impairments interact much less in bodily exercise, principally attributable to shorter (however not much less frequent) exercise bouts.
Quotation: Neishabouri A, Nguyen J, Samuelsson J, Guthrie T, Biggs M, Wyatt J, Cross D, Karas M, Migueles JH, Khan S, Guo CC. Quantification of acceleration as exercise counts in ActiGraph wearable. Sci Rep. 2022 Jul 13;12(1):11958. doi: 10.1038/s41598-022-16003-x. PMID: 35831446; PMCID: PMC9279376.
DOI: https://doi.org/10.1038/s41598-022-16003-x
URL: https://www.nature.com/articles/s41598-022-16003-x
Business Assist: Sure
Validation Examine: Sure
Comparability Check(s): 5 Actigraph variations
Examine Abstract: The present report gives an outline of the counts algorithms of 5 generations of ActiGraph gadgets (e.g., AM7194, CPIW), outlines the numerical steps of arriving at counts in pseudocode, and particulars an open-source Python package deal that replicates the counts algorithm in ActiGraph’s ActiLife software program for analysis use. The authors observe that every one counts algorithms outlined within the report produce counts after band move filtering the uncooked sign round frequencies suitable with human exercise. Importantly, the conversion of the uncooked knowledge into counts depends not solely on the amplitude of the uncooked knowledge, but additionally on its spectral content material. The report highlights that since counts is just not a common unit, and its relation to uncooked acceleration knowledge varies relying on completely different machine fashions, an in depth understanding of the computational conversion of uncooked accelerometer knowledge to counts is crucial for scientific functions of wearable expertise.
Different GT3X watches
Wu WJ, Yu HB, Tai WH, Zhang R, Hao WY. Validity of Actigraph for Measuring Power Expenditure in Wholesome Adults: A Systematic Overview and Meta-Evaluation. Sensors (Basel). 2023 Oct 18;23(20):8545. doi: 10.3390/s23208545. PMID: 37896640; PMCID: PMC10610851.
Ngueleu AM, Barthod C, Greatest KL, Routhier F, Otis M, Batcho CS. Criterion validity of ActiGraph monitoring gadgets for step counting and distance measurement in adults and older adults: a scientific evaluate. J Neuroeng Rehabil. 2022 Oct 17;19(1):112. doi: 10.1186/s12984-022-01085-5. PMID: 36253787; PMCID: PMC9575229.
Associated Applied sciences
Actigraph LEAP, Philips Actiwatch, Readiband and Readiwatch, Fibion, FitBit watches, Somnowatch Plus +Eco, Micro Motionlogger-SleepWatch 2.0, Emaptica- EmbracePlus watch, GENEActiv
The submit CentrePoint Perception Watch appeared first on American Academy of Sleep Medication – Affiliation for Sleep Clinicians and Researchers.
