The Clinical Assessment of Eccentric and Concentric Stepping Kinetics has Utility in Older African American Men with Knee Arthritis.

Introduction: Stair navigation is physically demanding for individuals with knee osteoarthritis and may result in movement asymmetries that can be quantified using kinetic analysis and force-time parameters. Thus, the purpose of this cross-sectional study was to determine if kinetic force-time parameter asymmetries are present in individuals with knee osteoarthritis and associated with functional outcomes.

Methods: Forty-six older male veterans (61.

The biogeography of the Amazonian tree flora.

We describe the geographical variation in tree species composition across Amazonian forests and show how environmental conditions are associated with species turnover. Our analyses are based on 2023 forest inventory plots (1 ha) that provide abundance data for a total of 5188 tree species. Within-plot species composition reflected both local environmental conditions (especially soil nutrients and hydrology) and geographical regions.

Long COVID symptoms and sleep problems: a population-based study.

To investigate the association between symptoms of long-term effects of coronavirus disease 2019 (long COVID) and sleep problems in a sample population from southern Brazil. This cross-sectional study used data from the SULcovid-19 survey, developed in the municipality of Rio Grande, RS, Brazil. The outcome, long COVID, was investigated through the presence of 18 symptoms, and the exposure variable was sleep problems.

Proteomic analysis of cardiorespiratory fitness for prediction of mortality and multisystem disease risks.

Despite the wide effects of cardiorespiratory fitness (CRF) on metabolic, cardiovascular, pulmonary and neurological health, challenges in the feasibility and reproducibility of CRF measurements have impeded its use for clinical decision-making. Here we link proteomic profiles to CRF in 14,145 individuals across four international cohorts with diverse CRF ascertainment methods to establish, validate and characterize a proteomic CRF score. In a cohort of around 22,000 individuals in the UK Biobank, a proteomic CRF score was associated with a reduced risk of all-cause mortality (unadjusted hazard ratio 0.