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Reliability and Accuracy of the Fitbit Charge 4 Photoplethysmography Heart Rate Sensor in Ecological Conditions: Validation Study.
JMIR Mhealth Uhealth
January 2025
ULR 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Univ. Littoral Côte d'Opale, Univ. Lille, Univ. Artois, 189b, Avenue Maurice Schumann, Centre Universitaire des Darses, Dunkerque, 59375, France, 33 328237357.
Background: Wrist-worn photoplethysmography (PPG) sensors allow for continuous heart rate (HR) measurement without the inconveniences of wearing a chest belt. Although green light PPG technology reduces HR measurement motion artifacts, only a limited number of studies have investigated the reliability and accuracy of wearables in non-laboratory-controlled conditions with actual specific and various physical activity movements.
Objective: The purpose of this study was to (1) assess the reliability and accuracy of the PPG-based HR sensor of the Fitbit Charge 4 (FC4) in ecological conditions and (2) quantify the potential variability caused by the nature of activities.
Development of a portable SERS tool to evaluate the effectiveness of washing methods to remove pesticide residue from fruit surface.
Anal Chim Acta
January 2025
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY, 13902, USA; Materials Engineering and Science Program, State University of New York at Binghamton, Binghamton, NY, 13902, USA. Electronic address:
Background: Pesticides are widely used in agriculture to control pests and enhance crop yields. However, post-harvest, there are growing concerns about the potential health risks posed by pesticide residues on produce surfaces. Analyzing these residues is challenging due to their typically low concentrations and the potential interference from the complex matrix of the produce's surface.
View Article and Find Full Text PDFClinical, histopathological and parasitological follow-up of dogs naturally infected by Leishmania infantum before and after miltefosine treatment and associated therapies.
PLoS One
January 2025
Department of Microbiology, Immunology and Parasitology, Laboratory of Protozoology, Federal University of Santa Catarina, Florianópolis, SC, Brazil.
In Brazil, Visceral Leishmaniases is caused by Leishmania infantum, and domestic dogs are the main reservoirs in its urban transmission cycle. As an alternative to euthanizing dogs, miltefosine has been used to treat canine visceral leishmaniasis since 2016. In this study, we have assessed the efficacy of miltefosine for treating canine visceral leishmaniasis in a new endemic area through follow-up of naturally infected dogs was evaluated.
View Article and Find Full Text PDFMelanoma detection, treatment, survival, and mortality through year 2 of the pandemic.
Arch Dermatol Res
January 2025
School of Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA.
The COVID-19 pandemic affected the timely diagnosis and treatment of many cancers, including melanoma, the fifth most common cancer in the U.S. This study aimed to quantify the disruption and recovery of melanoma detection, treatment, survival, and mortality during the pandemic by analyzing data from the Surveillance, Epidemiology, and End Results (SEER) program from 2000 to 2021.
View Article and Find Full Text PDFBiomarkers.
Alzheimers Dement
December 2024
AbbVie Deutschland GmbH & Co. KG, Ludwigshafen, Rheinland Pfalz, Germany.
Background: Parkinson's disease (PD) is a debilitating condition that affects millions of people worldwide, yet there are currently no reliable biomarkers for its diagnosis. Alpha-synuclein aggregation is a well-known hallmark of PD pathology, but the behavior and kinetics of these aggregates are poorly understood. To address this gap in knowledge, this study utilized several approaches to evaluate the potential of alpha-synuclein aggregates as potential biomarker for PD.
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