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Background: Spontaneously hypertensive rats (SHR) are one of the main animal models used for studying the effects of exercise on hypertension. Therefore, the determination of adequate intensity has been essential for secure and optimized exercise prescriptions concerning hypertensive subjects. This study aimed to identify the MLSS in SHR by using a treadmill test to improve the protocols and further prescriptions of exercise intensity.
Findings: In order to carry out this determination, SHR (n = 10) animals (~17.5 weeks; 227.4 ± 29.3 g; 172.4 ± 8.1 mmHg systolic blood pressure) were divided into two groups (G1 n = 5; G2 n = 5). Rats underwent a test with three different velocities to determine the MLSS. The MLSS was considered as the highest effort intensity where the blood lactate did not vary more than 1 mmol.L-1 from the 10th to the 25th minute. The MLSS was reached at a velocity of 20 m.min-1 with 3.8 ± 0.5 mmol.L-1 of lactate for G1. Additionally, the results were validated in G2. However, when the test was applied at 25 m.min-1, there was no stabilization of BLC in G1 and G2.
Conclusions: In this study it was possible to identify the MLSS in SHR rats, which is an excellent evaluation tool to control exercise intensity. These data are of considerable importance in studies using physical exercise as a means of research in hypertension and may lead to the intensity of exercise being prescribed more appropriately.
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http://dx.doi.org/10.1186/1756-0500-5-661 | DOI Listing |
Rev Med Suisse
August 2025
Service de gastroentérologie et d'hépatologie, Département de médecine, Hôpitaux universitaires de Genève, 1211 Genève 14.
The treatment of metabolic dysfunction-associated steatotic liver disease involves physical activity, weight loss, and management of comorbidities (diabetes, hypertension, dyslipidemia). In 2024, the American Food and Drug Administration provisionally approved resmetirom for metabolic dysfunction-associated steatohepatitis. Other promising molecules are being evaluated (glucagon-like peptide 1 receptor agonists, fibroblast growth factor 21 agonist).
View Article and Find Full Text PDFFront Physiol
August 2025
Department of Rehabilitation Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, Wuxi, China.
Objective: To explore the exercise capacity in obese patients with severe obstructive sleep apnea syndrome (OSAS) through cardiopulmonary exercise test (CPET).
Methods: In this cross-sectional study, patients with simple obesity (36 cases) and obese patients with severe OSAS (45 cases) admitted to the Department of Rehabilitation Medicine and the Department of General Practice of the Affiliated Wuxi People's Hospital of Nanjing Medical University from September 2019 to January 2024 were collected. Additionally, we included 33 patients (BMI<28 kg/m,AHI<5/hour) as a control group.
JACC Cardiovasc Imaging
September 2025
Department of Cardiology, Ziekenhuis Oost-Limburg, Genk, Belgium; Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium. Electronic address:
Background: Atrial functional mitral regurgitation (AFMR) is prevalent among patients with heart failure with preserved ejection fraction (HFpEF) and associated with adverse outcome, yet this bidirectional association remains underexplored.
Objectives: The purpose of this study was to elucidate the pathophysiological and prognostic significance of AFMR in HFpEF, both at rest and during exercise.
Methods: In this multicenter cohort study, consecutive patients with HFpEF underwent cardiopulmonary exercise testing with echocardiography, with a particular focus on mitral regurgitation (MR) severity assessment in rest and during exercise.
Monaldi Arch Chest Dis
September 2025
Department of Chest Disease, Istanbul Faculty of Medicine, Istanbul University.
Assessment of exercise capacity is useful in monitoring patients and planning a rehabilitation program for subjects with pulmonary hypertension (PH). No study has investigated the relationship of different field tests, except for the six-minute walk test (6MWT), with balance, activities of daily living (ADL), and quality of life (QoL) in subjects with PH. This study aimed to investigate the relationship of different field tests with balance, ADL, and QoL in subjects with PH.
View Article and Find Full Text PDFAliment Pharmacol Ther
September 2025
Department of Gastroenterology and Hepatology, Erasmus MC, Rotterdam, the Netherlands.
Introduction: Metabolic dysfunction and metabolic dysfunction-associated steatotic liver disease (MASLD) are associated with an increased risk of hepatocellular carcinoma (HCC) in patients with chronic hepatitis B (CHB). We aimed to study risk factors for HCC and to assess the performance of the PAGE-B score in this population.
Methods: We included CHB patients with ≥ 1 metabolic comorbidity from nine centres.