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Objectives: To investigate whether physical activity is associated with enhanced immunogenicity of a SARS-CoV-2 inactivated vaccine (Coronavac) in patients with autoimmune rheumatic diseases (ARD) (n = 898) and in non-ARD (n = 197) individuals without pre-existing immunogenicity to SARS-CoV-2.
Methods: This was a prospective cohort study within an open-label, single-arm, phase 4 vaccination trial. Immunogenicity was assessed after vaccination by measuring seroconversion rates of total anti-SARS-CoV-2 S1/S2 IgG (SC), geometric mean titers of anti-S1/S2 IgG (GMT), factor-increase in GMT (FI-GMT), frequency of neutralizing antibody (NAb), and median neutralizing activity. Physical activity (active being defined as ≥ 150 min/week) and sedentary behavior (>8h/day) were assessed by questionnaire.
Results: Physically active ARD patients (n = 494) were younger and less frequently used prednisone/biologics than inactive patients (n = 404). After controlling for covariates, active patients exhibited greater SC (OR: 1.4 [95%CI: 1.1-2.0]), GMT (32% [95%CI: 8.8-60) and FI-GMT (33% [95%CI: 9.6-63%]) vs. inactive. Cluster analysis (physical activity/sedentary status) revealed greater GMT (43.0% [95% CI: 11.0-84.0%) and FI-GMT (48.0% [95%CI: 14.0-92.0%]) in active/non-sedentary vs. inactive/sedentary ARD patients. A dose-response was observed, with greater benefits for the group of patients performing ≥ 350 min/week of physical activity (OR: 1.6 [95%CI: 1.1-2.4]; 41% [95%CI: 10-80%]; 35% [95%CI: 4.3-74], for SC, GMT, and FI-GMT, respectively) vs. the least active group (≤30 min/week). Greater SC (OR: 9.9 [95%CI: 1.1-89.0]) and GMT (26% [95%CI: 2.2-56.0%]) were observed in active vs. inactive non-ARD.
Conclusions: A physically active lifestyle may enhance SARS-CoV-2 vaccine immunogenicity, a finding of particular clinical relevance for immunocompromised patients.
Trial Registration: Clinicaltrials.gov #NCT04754698.
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http://dx.doi.org/10.1016/j.bbi.2021.12.016 | DOI Listing |
Alzheimers Res Ther
September 2025
Motor Control and Learning Group, Institute of Human Movement Sciences and Sport, Department of Health Sciences and Technology, ETH Zurich, Leopold-Ruzicka-Weg 4, Zurich, 8093, Switzerland.
Eur Geriatr Med
September 2025
Department of Social Science, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan.
Purpose: To investigate the longitudinal association between chronic pain and decline in activity of daily living (ADL) among community-dwelling older adults aged ≥ 60 years.
Methods: In this systematic review of prospective longitudinal studies with narrative synthesis, a comprehensive literature search was conducted using PubMed and Embase using free-text words and MeSH terms on February 3, 2025. Longitudinal studies that quantitatively assessed ADL at two or more time points and pain at least once were included.
J Epidemiol
September 2025
Faculty of Sport Sciences, Waseda University.
Background: Brief measures of 24-hour movement behaviors are needed to easily evaluate their durations. The present study investigated the criterion validity and test-retest reliability of a brief self-report instrument to assess 24-hour movement behaviors.
Methods: A paper-based self-administered questionnaire was used to assess sleep, sedentary behavior (SB), light-intensity physical activity (LPA), and moderate-to-vigorous physical activity (MVPA) with four items in 35 healthy adults.
Anal Chim Acta
November 2025
State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China. Electronic address:
Background: During intense exercise, anaerobic metabolism predominantly produces energy in the body, resulting in lactic acid (LA) accumulation, which contributes to muscle fatigue and soreness and may also impair neurological and cardiovascular functions. In endurance sports, the lactate threshold (LT) is a key indicator of an athlete's capacity to clear and utilize LA, directly influencing athletic performance and endurance. Therefore, LA detection is crucial for assessing the physical condition of both athletes and the general population, as well as for optimizing training programs.
View Article and Find Full Text PDFFertil Steril
September 2025
REI Division, Department of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics, Carver College of Medicine, Iowa City. Iowa. 52242.
Objective: To investigate the impact of objectively measured physical activity and stress on programmed hormone replacement therapy (HRT) frozen embryo transfer (FET) outcomes.
Design: Observational cohort study SUBJECTS: Patients undergoing standard HRT FET at a single academic center.
Exposure: Average daily step counts before and after FET as measured by FitBit Charge 5 wearable activity tracker.