Diagnostic advances such as #actigraphy, #melatonin assays, and plasmabiomarkers provide non-invasive methods for early detection of #circadian misalignment.

📊 Key Features of Fibion Helix:

📍 Wrist-based accurate HRV with patented optical sensors.

🎯 Tracks activity, motion, and sleep patterns effectively.

📱 Simple setup without reliance on smartphones or apps.

#HRV #Actigraphy

🚀 Expanded our research portfolio with Fibion Flash! A versatile chest-worn device for precise HRV and motion tracking, or switch to wrist-worn mode for reliable actigraphy.

#HRV #Actigraphy

Fibion Flash is a wearable designed with flexibility for researchers.

Use it as a chest-worn HRV and motion tracker or on the wrist for actigraphy. #HRV

#HRV #HeartRateVariability #Actigraphy

🌙Fibion Flash is built to adapt for day and night monitoring!

Wear it on the wrist for all-day actigraphy or on the chest for precise HRV and movement data.

Perfect for circadian and sleep studies!

#HRV #Actigraphy

Actigraphy-derived time in bed: it’s time to put this issue to bed Dear Editor,

Literature doesn't have a #standardized measure for analyzing #sleeplatency in participants. #TimeinBed measured using #actigraphy can provide insights on standardizing scoring methods for key #sleepmetrics. academic.oup.com/sleepadvance...

Comparison and Validation of Actigraphy Algorithms Using a Large Community Dataset: Algorithm Validation Study Background: For decades, the measurement of sleep and wake has relied upon watch-based Actigraphy as an alternative to expensive, obtrusive, clinical monitoring. To date, we have relied upon a handful of algorithms to score actigraphy data as sleep or wake. However, these algorithms have largely been tested and validated with only small samples of young healthy individuals. Objective: To address this issue, this study established the accuracy and agreement of conventional and traditional actigraphy algorithms against polysomnography the clinical standard using the diverse MESA sleep dataset. As a secondary objective, we examined algorithm and polysomnography agreement for key sleep metrics including total sleep time (TST), sleep efficiency (SE), and wake after sleep onset (WASO). Methods: We assessed 5 well established algorithms including Cole-Kripke, UCSD scoring, Kripke 2010, Philips-Respironics, and Sadeh, with and without rescoring across 1440 individuals (Mage=69.36+/-8.97) from the MESA sleep dataset. We conducted epoch-by-epoch comparison assessing accuracy, confusion matrix analyses, Receiver Operator Characteristic Curves, Area Under the Curve, and Bland Altman analyses for agreement. Results: Primary results indicated all algorithms demonstrated accuracy between 78%-80% with the highest accuracy by the Kripke 2010 (80%) algorithm and closely by Cole-Kripke (80%) and Philips-Respironics (80-79%) algorithms. In addition, moderate Cohens kappa agreement and moderate positive Matthews correlations were demonstrated by all algorithms. Further, all algorithms demonstrated significant mean difference across sleep metrics. Conclusions: The findings of this study establish that these traditional actigraphy algorithms can, with high accuracy, detect sleep and wake in large diverse population samples, including older adults, or populations at risk of health conditions. However, these algorithms may carry difficulty for precise assessment of sleep metrics especially in cases of sleep disorders or irregular sleep.

JMIR Formative Res: Comparison and Validation of Actigraphy Algorithms Using a Large Community Dataset: Algorithm Validation Study #SleepStudy #Actigraphy #Polysomnography #DataValidation #SleepAlgorithms

📊 Key Features of Fibion Helix:

📍 Wrist-based accurate HRV with patented optical sensors.

🎯 Tracks activity, motion, and sleep patterns effectively.

📱 Simple setup without reliance on smartphones or apps.

#HRV #Actigraphy

Sleep and Activity Patterns as Transdiagnostic Behavioral Biomarkers in Psychiatry: Longitudinal Observational Study From the DeeP-DD Study Background: Despite widespread use of symptom rating scales in psychiatry, these tools are limited by reliance on self-report, infrequent administration, and lack of predictive power. This constrains clinicians’ ability to monitor illness trajectories or anticipate adverse outcomes like relapse. Actigraphy, a passive wearable-based method for measuring sleep and physical activity, offers objective, high-resolution behavioral data that may better reflect symptom fluctuations. Prior research has shown associations between actigraphy features and mood or psychosis symptoms, but most studies have focused on narrow diagnostic groups or fixed time windows, limiting clinical translation. Objective: To examine whether actigraphy-derived sleep and activity features correlate with psychiatric symptom severity in a transdiagnostic psychiatric sample, and to identify which features are most clinically relevant across multiple temporal resolutions. Methods: We present a #feasibility case series study analyzing preliminary data from eight outpatients (ages 18–52) enrolled in the Deep Phenotyping and Digitalization at Douglas (DeeP-DD) study, a prospective transdiagnostic study of digital phenotyping. Participants wore wrist-based actigraphy devices (GENEActiv) for up to five months. Symptom severity was measured using a variety of self- and clinician-rated scales. We performed intra-individual Spearman correlations and inter-individual repeated measures correlations across daily, weekly, monthly, and full-duration averages. Results: Intra-individual analyses revealed that later rise times were significantly associated with higher weekly PHQ-9 scores in participant #7 (ρ = 0.74, P

JMIR Formative Res: Sleep and Activity Patterns as Transdiagnostic Behavioral Biomarkers in Psychiatry: Longitudinal Observational Study From the DeeP-DD Study #MentalHealth #Psychiatry #SleepResearch #BehavioralHealth #Actigraphy

🚀 Expanded our research portfolio with Fibion Flash! A versatile chest-worn device for precise HRV and motion tracking, or switch to wrist-worn mode for reliable actigraphy.

#HRV #Actigraphy

Fibion Flash is a wearable designed with flexibility for researchers.

Use it as a chest-worn HRV and motion tracker or on the wrist for actigraphy. #HRV

#HRV #HeartRateVariability #Actigraphy

🌙Fibion Flash is built to adapt for day and night monitoring!

Wear it on the wrist for all-day actigraphy or on the chest for precise HRV and movement data.

Perfect for circadian and sleep studies!

#HRV #Actigraphy

1159 The Cyclical Daytime Sleeper: A Rare Case of a Sighted Teenager with Non-24-Hour Sleep-Wake Disorder AbstractIntroduction. Daytime fatigue in teenagers may be hand-waved as hours of screen time the night before and it can be difficult for families to accur

I believe Sighted #Non24 is not as rare as people think. Difficult to diagnose unless specialist is aware it also happens in sighted people. My teen wore #actigraphy device at home for 2 weeks while free-running for diagnosis.
[From May 2024] #Sleep #Circadian
academic.oup.com/sleep/articl...

😴 Explore Pro goes beyond EEG – it supports sleep actigraphy too!

Track sleep–wake cycles, detect stages, and monitor activity in real-world settings.

🔗 wiki.mentalab.com/applications...

#Mentalab #SleepResearch #Actigraphy

Comparison of Sleep Features Across Smartphone Sensors, Actigraphy, and Diaries Among Young Adults: Longitudinal Observational Study Background: Poor sleep health is pervasive and contributes to long-lasting physical and psychological problems. As traditional sleep measurement can be burdensome, testing scalable and accessible sleep measurements is important. Objective: The aim of this study was to test whether sleep features obtained through a smartphone app are comparable to other modes of sleep measurement (i.e., daily diary, wearable actigraphy). Methods: College students (n=29) answered daily questions about their sleep and provided smartphone accelerometer data using the Effortless Assessment Research System (EARS) application for one week. Analyses compared bedtime, risetime, and time-in-bed across diary and EARS. Wrist wearable actigraphy in 13 participants was used in supplementary analyses. Results: On average, EARS showed a high true positive rate (86.6%) and low false positive rate (4.0%) in identifying bedtimes and risetimes. There was no significant difference among diary, actigraphy, and EARS bedtime, risetime, and time-in-bed (Ps≥.069). Day-to-day sleep features were significantly correlated between among diary, actigraphy, and EARS (rs≥0.29, Ps≤.001), except EARS and actigraphy risetimes (r=0.29, P=.067). Conclusions: Smartphone-based sleep sensors show acceptable alignment with more established methods and may provide a feasible alternative to measuring daily sleep patterns in a scalable way. Future studies will require larger, diverse samples to corroborate findings of concordance among EARS, diary, and actigraphy data in other populations.

JMIR Formative Res: Comparison of Sleep Features Across Smartphone Sensors, Actigraphy, and Diaries Among Young Adults: Longitudinal Observational Study #SleepHealth #SleepStudy #SmartphoneSensors #Actigraphy #SleepMeasurement

🚀 Expanded our research portfolio with Fibion Flash! A versatile chest-worn device for precise HRV and motion tracking, or switch to wrist-worn mode for reliable actigraphy.

#HRV #Actigraphy

Fibion Flash is a wearable designed with flexibility for researchers.

Use it as a chest-worn HRV and motion tracker or on the wrist for actigraphy. #HRV

#HRV #HeartRateVariability #Actigraphy

Grant Toolkit | Ametris This toolkit is designed to facilitate the application submission process by gathering information in one place for quick and convenient access.

📑 Are you applying for #grantfunding and using #actigraphy / #wearables / #digitalhealth tech in your study? Check out our new toolkit, Grant Preparation Resources for Wearable-Based Studies, where we gather commonly requested information in one place: landing.ametris.com/grant-toolkit

🌙Fibion Flash is built to adapt for day and night monitoring!

Wear it on the wrist for all-day actigraphy or on the chest for precise HRV and movement data.

Perfect for circadian and sleep studies!

#HRV #Actigraphy

Characteristics of Daily Walking Bouts as Valid and Reliable Indicators of Exercise Capacity in Pulmonary Arterial Hypertension: Insights From the Randomized Controlled Study With Selexipag (TRACE) There is a need for objective, continuous and remote assessment of exercise capacity in patients with pulmonary arterial hypertension (PAH). Using data from the TRACE study, in which 108 adult patien...

TRACE study found wrist-worn #actigraphy measured walking bouts in patients w/ #Pulmonary Arterial Hypertension correlate with 6MWD & physical impacts of #PAH, speaking to the utility of #digitalmeasures to monitor #exercisecapacity
@pvrinstitute.bsky.social onlinelibrary.wiley.com/doi/10.1002/...

Grant Planning for Wearable-Based Research: Insights and Best Practices | Ametris Explore data-driven health insights with 'Digital Health Monthly' webinar series. Join expert panels to uncover digital health advancements. Register now!

Register for our #DigitalHealthMonthly webinar, Grant Planning for #Wearable-Based Research: Insights & Best Practices! We invite #academic, #publichealth, and #clinicalresearchers to join as we share lessons learned for incorporating #actigraphy into #grant applications: ametris.com/digital-heal...

In this study, we compared RARs in adults with epilepsy and intellectual disability (E + ID) to those from control subjects.
doi.org/10.1002/epi4...

#epilepsy #ilae #epilepsiaopen #actigraphy #DEE #intellectualdisability #restactivityrhythms #sleep

📣 The evolution is here: #ActiGraph is now #Ametris! Reflecting the transformation from our foundation in #actigraphy into a global #digitalhealth solutions provider. Same Team. Same Mission. Greater Impact. Read the announcement: blog.theactigraph.com/news/actigra...

📊 Key Features of Fibion Helix:

📍 Wrist-based accurate HRV with patented optical sensors.

🎯 Tracks activity, motion, and sleep patterns effectively.

📱 Simple setup without reliance on smartphones or apps.

#HRV #Actigraphy

🚀 Expanded our research portfolio with Fibion Flash! A versatile chest-worn device for precise HRV and motion tracking, or switch to wrist-worn mode for reliable actigraphy.

#HRV #Actigraphy

Fibion Flash is a wearable designed with flexibility for researchers.

Use it as a chest-worn HRV and motion tracker or on the wrist for actigraphy. #HRV

#HRV #HeartRateVariability #Actigraphy

🌙Fibion Flash is built to adapt for day and night monitoring!

Wear it on the wrist for all-day actigraphy or on the chest for precise HRV and movement data.

Perfect for circadian and sleep studies!

#HRV #Actigraphy

Actigraphy, a valuable tool for objective sleep evaluation in psoriasis: a review - Archives of Dermatological Research Psoriasis, a form of chronic inflammatory skin disease, shows wide variations in severity and comorbidities. Considering the relatively clear scientific evidence concerning its great physical and psyc...

"From the studies reviewed, a consistent theme emerges: #actigraphy serves as a powerful, minimally invasive tool to capture changes in #sleep architecture among individuals living with #psoriasis." Learn more in this new systematic review:
link.springer.com/article/10.1...

📊 Key Features of Fibion Helix:

📍 Wrist-based accurate HRV with patented optical sensors.

🎯 Tracks activity, motion, and sleep patterns effectively.

📱 Simple setup without reliance on smartphones or apps.

#HRV #Actigraphy

🚀 Expanded our research portfolio with Fibion Flash! A versatile chest-worn device for precise HRV and motion tracking, or switch to wrist-worn mode for reliable actigraphy.

#HRV #Actigraphy