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Objective: This study aimed to investigate the potential relationship between urinary metals copper (Cu), arsenic (As), strontium (Sr), barium (Ba), iron (Fe), lead (Pb) and manganese (Mn) and grip strength.
Methods: We used linear regression models, quantile g-computation and Bayesian kernel machine regression (BKMR) to assess the relationship between metals and grip strength.
Results: In the multimetal linear regression, Cu (β = -2.119), As (β = -1.318), Sr (β = -2.480), Ba (β = 0.781), Fe (β = 1.130) and Mn (β = -0.404) were significantly correlated with grip strength ( < 0.05). The results of the quantile g-computation showed that the risk of occurrence of grip strength reduction was -1.007 (95% confidence interval: -1.362, -0.652; < 0.001) when each quartile of the mixture of the seven metals was increased. Bayesian kernel function regression model analysis showed that mixtures of the seven metals had a negative overall effect on grip strength, with Cu, As and Sr being negatively associated with grip strength levels. In the total population, potential interactions were observed between As and Mn and between Cu and Mn ( of 0.003 and 0.018, respectively).
Conclusion: In summary, this study suggests that combined exposure to metal mixtures is negatively associated with grip strength. Cu, Sr and As were negatively correlated with grip strength levels, and there were potential interactions between As and Mn and between Cu and Mn.
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http://dx.doi.org/10.3967/bes2024.002 | DOI Listing |
Clin Orthop Relat Res
September 2025
Leni & Peter W. May Department of Orthopaedic Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Background: Peripheral nerve injury commonly results in pain and long-term disability for patients. Recovery after in-continuity stretch or crush injury remains inherently unpredictable. However, surgical intervention yields the most favorable outcomes when performed shortly after injury.
View Article and Find Full Text PDFJ Healthc Sci Humanit
January 2024
Programa de Geriatría, Departamento de Medicina Familiar, Universidad del Valle, Cali, Colombia.
Introduction: There was an outbreak of COVID-19 during the first months of the pandemic in an underserved geriatric institution, which had no fatalities. This study aimed to describe the detection, isolation, and mitigation process of the residents infected by COVID-19. We also assessed factors associated with the infection among 252 institutionalized older adults.
View Article and Find Full Text PDFParkinsonism Relat Disord
September 2025
Clinical Neurosciences, University of Turku, Turku, Finland; Neurocenter, Turku University Hospital, Turku, Finland. Electronic address:
Introduction: Sarcopenia, the age-related loss of muscle mass and function, has been reported in Parkinson's disease (PD). While grip strength is a key marker of sarcopenia and has been linked to PD risk and progression, its relationship with underlying neurodegenerative processes remains unclear. This study examines whether grip strength is impaired in PD and reflects disease severity or dopaminergic function.
View Article and Find Full Text PDFSurg Endosc
September 2025
Department of Surgery and Cancer Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
Introduction: This study aimed to evaluate surgeons' ergonomic satisfaction when using laparoscopic energy devices and to investigate how prolonged use affects muscle fatigue and surgical performance.
Methods: A two-part study, including a survey and a kinesiologic experiment, was conducted to compare 4 laparoscopic energy devices (D1-D4). Thirty surgeons completed a structured survey assessing ergonomic factors such as device weight, grip strength, handle design, comfort, and trigger location.
Ophthalmol Glaucoma
September 2025
Department of Ophthalmology and Visual Sciences, University of Michigan W.K. Kellogg Eye Center, Ann Arbor, Michigan. Electronic address:
Purpose: To investigate hand function and eye drop instillation success in adults with and without glaucoma.
Design: Cross-sectional pilot study.
Subjects: Adults aged ≥ 65 years with glaucoma who use eye drops daily and adults aged 65+ without glaucoma who do not regularly use eye drops.