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Usability, acceptability, and satisfaction of a wearable activity tracker in older adults: an observational study in a real-world context.
BackgroundThe use of activity trackers has significantly increased over the last few years. This technology

Free-living physical activity measured with a wearable device is associated with larger hippocampus volume and greater functional connectivity in healthy older adults
Several studies using neuroimaging techniques have established a positive relationship between physical activity (PA) and

European Portuguese Version of the User Satisfaction Evaluation Questionnaire (USEQ): Transcultural Adaptation and Validation Study.
Background: Wearable activity trackers have the potential to encourage users to adopt healthier lifestyles by

Effects of physical activity on brain function and structure in older adults: a systematic review.
Despite increasing evidence that physical activity (PA) contributes to brain health in older individuals, both

Association between self-reported and accelerometer-based estimates of physical activity in Portuguese older adults.
Accurate assessment of physical activity (PA) is crucial in interventions promoting it and in studies

Validation of a Wireless Bluetooth Photoplethysmography Sensor Used on the Earlobe for Monitoring Heart Rate Variability
Heart rate variability (HRV), using electrocardiography (ECG), has gained popularity as a biomarker of the

The efficacy of biofeedback approaches for obsessive-compulsive and related disorders: A systematic review and meta-analysis
Biofeedback is applied to target excessive and/or deficient physiological signals to help patients identifying and