Sensitivity of the Misfit Shine™ to Detect Changes in Laboratory-Based and Free-Living Physical Activity

Petrucci, Greg J.; Freedson, Patty S.; Masteller, Brittany; Cox, Melanna F.; Staudenmayer, John; Sirard, John R.

doi:10.1123/jmpb.2017-0006

Cited by 3 publications

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Accelerometer techniques for capturing human movement validated against direct observation: a scoping review

Letts,

Jakubowski,

King-Dowling

et al. 2024

Physiol. Meas.

View full text Add to dashboard Cite

Introduction: Accelerometers are devices commonly used to measure human physical activity and sedentary time. Accelerometer capabilities and analytical techniques have evolved rapidly, making it difficult for researchers to keep track of advances and best practices for data processing and analysis. Objective: The objective of this scoping review is to determine the existing methods for analyzing accelerometer data for capturing human movement which have been validated against the criterion measure of direct observation. Methods: This scoping review searched 14 academic and 5 grey databases. Two independent raters screened by title and abstract, then full text. Data were extracted using Microsoft Excel and checked by an independent reviewer. Results: The search yielded 1039 papers and the final analysis included 115 papers. 71 unique accelerometer models were used across a total of 4217 participants. While all studies underwent validation from direct observation, most direct observation occurred live (55%) or using recordings (42%). Analysis techniques included machine learning approaches (22%), the use of existing cut-points (18%), ROC curves to determine cut-points (14%), and other strategies including regressions and non-machine learning algorithms (8%). Discussion: Machine learning techniques are becoming more prevalent and are often used for activity identification. Cut-point methods are still frequently used. Activity intensity is the most assessed activity outcome; however, both the analyses and outcomes assessed vary by wear location. Conclusions: This scoping review provides a comprehensive overview of accelerometer analysis and validation techniques using direct observation and is a useful tool for researchers using accelerometers.

show abstract

Accelerometer techniques for capturing human movement validated against direct observation: a scoping review

Letts,

Jakubowski,

King-Dowling

et al. 2024

Physiol. Meas.

View full text Add to dashboard Cite

show abstract

Validity and Interinstrument Reliability of a Medical Grade Physical Activity Monitor in Older Adults

O’Brien

Wojcik²,

Fowles³

2021

Journal for the Measurement of Physical Behaviour

View full text Add to dashboard Cite

Wearable physical activity monitors are associated with an increase in user’s habitual physical activity levels. Most of the older adult population do not meet the national moderate- to vigorous-intensity physical activity (MVPA) recommendations and may benefit from being prescribed a physical activity monitor. The PiezoRx is a class one medical grade device that uses step rate thresholds to measure MVPA. The validity and reliability of the PiezoRx in measuring MVPA has yet to be determined in older persons. We assessed the validity and interinstrument reliability of the PiezoRx to measure steps and MVPA in older adults. Participants (n = 19; 68.8 ± 2.3 years) wore an Omron HJ-320 pedometer, ActiGraph GT3X accelerometer, and four PiezoRx monitors during a five-stage treadmill walking protocol. The PiezoRx devices were set at moderate physical activity and vigorous physical activity step rate thresholds (steps per minute) of 100/120, 110/130, adjusted for height and adjusted for height + fitness. The PiezoRx exhibited a stronger correlation (intraclass correlation coefficient = .82) with manually counted steps than the ActiGraph (intraclass correlation coefficient = .53) and Omron (intraclass correlation coefficient = .54) and had a low absolute percentage error (3 ± 6%). The PiezoRx with moderate physical activity/vigorous physical activity step thresholds adjusted to 110/130 was strongly correlated to indirect calorimetry (0.84, p < .001) and best distinguished each walking stage as MVPA or not (sensitivity: 88%; specificity: 95%). The PiezoRx monitor is a valid and reliable measure of step count and MVPA among older adults. The device’s ability to measure MVPA in absolute terms was improved when step rate thresholds for moderate physical activity/vigorous physical activity were increased to 110/130 steps per minute in this population.

show abstract

Revisiting Remote Monitoring for Older Adults: A Scoping Review toward Advancing Remote Monitoring for Patients with AD/ADRD (Preprint)

Shaik,

Anik,

Hasan

et al. 2024

Preprint

View full text Add to dashboard Cite

BACKGROUND Background: Using remote monitoring technology in the context of Alzheimer’s care presents exciting new opportunities to lessen caregiver stress and improve patient care quality. The application of wearables, environmental sensors, and smart home systems designed specifically for Alzheimer’s patients represents a promising interdisciplinary approach that integrates advanced technology with healthcare to enhance patient safety, monitor health parameters in real-time, and provide comprehensive support to caregivers. OBJECTIVE Objective: The objectives of this paper include evaluating the effectiveness of various remote sensing technologies in enhancing patient outcomes and identifying strategies to alleviate the burden on healthcare professionals and caregivers. Critical elements such as regulatory compliance, user-centered design, privacy and security considerations, and the overall efficacy of relevant technologies are comprehensively examined. Ultimately, the study aims to propose a comprehensive remote monitoring framework tailored to the needs of patients with Alzheimer’s Disease and Related Dementias. METHODS Methods: Guided by the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) framework, we conducted a systematic review on Remote Monitoring for Patients with Alzheimer’s Disease and Related Dementia. Our search spanned four major electronic databases—Google Scholar, PubMed, IEEE, DBLP on February 20, 2024, with an updated search on May 18, 2024. RESULTS Results: A total of 31 publications met the inclusion criteria, highlighting four key research areas: existing remote monitoring techniques, balancing practicality and empathy, security and privacy in monitoring, and technology design for Alzheimer’s care. The studies revealed a strong focus on various remote monitoring methods for capturing behavioral, physiological, and environmental data, yet showed a gap in evaluating these methods for patient-caregiver needs, privacy, and usability. Findings also indicated that many studies lacked robust reference standards and did not consistently apply critical appraisal criteria, underlining the need for comprehensive frameworks that better integrate these essential considerations. CONCLUSIONS Conclusions: This comprehensive literature review of remote monitoring techniques for Alzheimer’s Disease (AD) patients provides an understanding of remote monitoring techniques, trends, and gaps in the current research and the significance of novel strategies for remote monitoring to enhance patient outcomes and reduce the burden among health professionals and caregivers. The proposed remote monitoring framework aims to inspire the development of new interdisciplinary research models that advance care for AD patients.

show abstract

Sensitivity of the Misfit Shine™ to Detect Changes in Laboratory-Based and Free-Living Physical Activity

Cited by 3 publications

References 27 publications

Accelerometer techniques for capturing human movement validated against direct observation: a scoping review

Accelerometer techniques for capturing human movement validated against direct observation: a scoping review

Validity and Interinstrument Reliability of a Medical Grade Physical Activity Monitor in Older Adults

Revisiting Remote Monitoring for Older Adults: A Scoping Review toward Advancing Remote Monitoring for Patients with AD/ADRD (Preprint)

Contact Info

Product

Resources

About