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Background: Exercise is an important method to control the progression of diabetes. Since diabetes compromises immune function and increases the risk of infectious diseases, we hypothesized that exercise may affect the risk of infection by its immunoprotective effects. However, population-based cohort studies regarding the association between exercise and the risk of infection are limited, especially regarding changes in exercise frequency. The aim of this study was to determine the association between the change in exercise frequency and the risk of infection among patients with newly diagnosed diabetes.
Methods: Data of 10,023 patients with newly diagnosed diabetes were extracted from the Korean National Health Insurance Service-Health Screening Cohort. Self-reported questionnaires for moderate-to-vigorous physical activity (MVPA) were used to classify changes in exercise frequency between two consecutive two-year periods of health screenings (2009-2010 and 2011-2012). The association between changes in exercise frequency and the risk of infection was evaluated using multivariable Cox proportional-hazards regression.
Results: Compared with engaging in ≥ 5 times of MVPA/week during both periods, a radical decrease in MVPA (from ≥ 5 times of MVPA/week to physical inactivity) was associated with a higher risk of pneumonia (adjusted hazard ratio [aHR], 1.60; 95% confidence interval [CI], 1.03-2.48) and upper respiratory tract infection (aHR, 1.15; 95% CI, 1.01-1.31). In addition, a reduction of MVPA from ≥ 5 to < 5 times of MVPA/week was associated with a higher risk of pneumonia (aHR, 1.52; 95% CI, 1.02-2.27), whereas the risk of upper respiratory tract infection was not higher.
Conclusion: Among patients with newly diagnosed diabetes, a reduction in exercise frequency was related to an increase in the risk of pneumonia. For patients with diabetes, a modest level of physical activity may need to be maintained to reduce the risk of pneumonia.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10261708 | PMC |
http://dx.doi.org/10.3346/jkms.2023.38.e176 | DOI Listing |
BMJ Open Sport Exerc Med
September 2025
School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Victoria, Australia.
Objectives: To evaluate the onset, frequency and time loss impact of recurrent calf muscle strain injuries in elite male Australian football players over a decade. To explore how outcomes are affected by alternative recurrence definitions.
Method: Calf muscle strain injuries were reported to the Soft Tissue Injury Registry of the Australian Football League (2014-2023).
BMJ Open Sport Exerc Med
September 2025
School of Medicine, Queen's University Belfast, Belfast, UK.
Physical activity (PA) is a cornerstone of both disease prevention and long-term condition management, yet it remains absent from many treatment plans, particularly in primary care. Despite clinicians recognising the value of PA, systemic barriers such as time constraints and limited training hinder its integration into everyday consultations. For this reason, there has been a call for further resources to improve clinician confidence in initiating these conversations.
View Article and Find Full Text PDFDigit Health
September 2025
Department of Neurobiology, Care Sciences and Society, Division of Physiotherapy, Karolinska Institutet, Stockholm, Sweden.
Background And Purpose: Mobile health (mHealth) offers a promising platform for promoting physical activity (PA) in individuals post-stroke or transient ischemic attack (TIA). However, the extent to which key intervention components of PA promotion can be adapted to a digital format remains unclear. This study examines the fidelity of delivering supervised physical exercise and support for individualized PA goals in a 6-month mHealth intervention.
View Article and Find Full Text PDFFront Sports Act Living
August 2025
Department of Physical Education, Tianjin University of Sport, Tianjin, China.
Background: Repeated-sprint training in hypoxia (RSH) has emerged as a novel strategy to optimize repeated-sprint ability (RSA), aerobic capacity, and anaerobic performance in athletes. Although numerous studies have explored its efficacy compared with repeated-sprint training in normoxia (RSN), inconsistencies remain regarding overall benefits and modulating factors.
Objectives: This study aimed to quantify the overall effect of RSH vs.
J Exerc Rehabil
August 2025
Department of Maritime Engineering, Faculty of International Maritime Studies, Kasetsart University, Chonburi, Thailand.
Obesity is associated with reduced exercise tolerance, yet the physiological mechanisms underlying this impairment remain unclear. This study examined whether oxygen uptake (V̇O) kinetics reflect autonomic regulation during prolonged moderate-intensity exercise in normal-weight and obese males. This cross-sectional study included nine normal-weight and nine obese males (aged 20-22) who performed 30 min of constant-load cycling at 70% of ventilatory threshold to assess V̇O kinetics and heart rate variability (HRV) responses.
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