Evidence of Left Ventricular Cardiac Remodeling After 6 Weeks of Sprint Interval Training.

Sprint interval training (SIT) leads to similar improvements in maximal oxygen uptake (V̇O) and maximal cardiac output as previously reported for traditional endurance training, but the exercise-induced effects on cardiac remodeling are still largely unknown. The aim of the current study was therefore to explore the effects of SIT on cardiac structure and function assessed by echocardiography in relation to, and controlling for, changes in both blood volume (BV) and heart rate (HR). Healthy men and women (n = 28) performed 6 weeks of SIT.

Non-Hospitalized Patients With Post-COVID Condition and Myopathic Electromyography Findings Show no Difference in Symptom Severity and Clinical Manifestations Compared to Those Without Myopathic Findings.

Introduction: The COVID-19 pandemic has resulted in a post-infectious syndrome designated as long-COVID or post-COVID condition (PCC) that presents with numerous symptoms including fatigue and myalgias. This study evaluated myopathic electromyography (EMG) findings in non-hospitalized PCC patients in relation to symptom severity, quality of life (QoL), and physical function.

Methods: Twenty-nine PCC patients with persistent symptoms ≥ 3 months after laboratory-confirmed SARS-CoV-2 infection, without hospitalization or comorbidities, were included.

Longitudinal changes in regional fat and muscle composition and cardiometabolic biomarkers over 5 years of hormone therapy in transgender individuals.

Background: Longitudinal studies investigating hormone therapy in transgender individuals are rare and often limited to 1- to 2-year follow-up periods.

Objectives And Methods: We examined changes in body composition, muscle volumes, and fat distribution as well as muscle strength, arterial stiffness, and cardiometabolic biomarkers in both transgender men (TM; n = 17, age 25 ± 5 years) and transgender women (TW; n = 16, age 28 ± 5 years) at baseline and after 1 and 5-6 years of hormone therapy in a longitudinal prospective cohort design. Whole-body and regional fat and muscle volumes were analyzed using magnetic resonance imaging, and blood samples were taken.

An Emerging Role for Ticks as Vectors of Tularaemia in Sweden.

Background: The zoonotic bacterium Francisella tularensis, the causative agent of tularaemia, can be transmitted to humans via multiple routes, including through contact with infected animals, contaminated water or arthropod vectors. Ticks have not previously been described as transmitting the disease in Sweden. Recently, Ixodid tick species have expanded their latitudinal and altitudinal range in Sweden to areas where the disease is endemic.